Poa trivialis — Details

Rough Meadow-grass learn more about names for this taxon

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Overview

Distribution

Poa trivialis subsp. sylvicola (Guss.) H. Lindb.:
France (Europe)
Greece (Europe)
Russian Federation (Asia)
China (Asia)
Tajikistan (Asia)
Kyrgyzstan (Asia)
Turkmenistan (Asia)

Scholz, H. 1986. Poa studies 5. - The genus Poa (Gramineae) in Greece: Annotated check-list and key to the species. Willdenowia 15: 393–400. http://www.tropicos.org/Reference/27423
Flora of China Editorial Committee. 2006. Fl. China 22: 1–733. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis. http://www.tropicos.org/Reference/1029690
KERGUELEN, M. 1993. Index synonymique de la flore de France. Collection Patrimoines Naturels (ser. Patrimonine Sci.) 8: i–xxxviii, 1–196 + pl. http://www.tropicos.org/Reference/1011063
Scholz, H. 1991. Poa. IN:. Mount. Fl. Greece 2: 762–774. http://www.tropicos.org/Reference/1025582

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Poa trivialis L.:
Austria (Europe)
Afghanistan (Asia)
Albania (Europe)
Argentina (South America)
Chile (South America)
Canada (North America)
Australia (Oceania)
Bolivia (South America)
Baleares (Europe)
Belarus (Europe)
Belgium (Europe)
Bhutan (Asia)
Greenland (North America)
Costa Rica (Mesoamerica)
Ecuador (South America)
India (Asia)
Iraq (Asia)
Iran (Asia)
Greece (Europe)
Czechoslovakia (Europe)
Denmark (Europe)
Germany (Europe)
Faeroe Isl. (Europe)
Finland (Europe)
France (Europe)
Hungary (Europe)
Ireland (Europe)
Iceland (Europe)
Japan (Asia)
China (Asia)
Colombia (South America)
United States (North America)
Peru (South America)
South Africa (Africa & Madagascar)
Pakistan (Asia)
Turkmenistan (Asia)
Uruguay (South America)
Portugal (Europe)
Poland (Europe)
Romania (Europe)
Sardegna (Europe)
Sicilia (Europe)
Spain (Europe)
Switzerland (Europe)
United Kingdom (Europe)
Bulgaria (Europe)
Liechtenstin (Europe)
Luxembourg (Europe)
Corsica (Europe)
Kriti (Europe)
Netherlands (Europe)
Norway (Europe)
Sweden (Europe)
Yugoslavia (Europe)
New Zealand (Oceania)
Turkey (Asia)
Java (Asia)
Russian Federation (Asia)
Mongolia (Asia)
Ukraine (Europe)
Tajikistan (Asia)
Kazakhstan (Asia)
Kyrgyzstan (Asia)
Uzbekistan (Asia)

Jørgensen, P. M. & C. Ulloa Ulloa. 1994. Seed plants of the high Andes of Ecuador---A checklist. AAU Rep. 34: 1–443. http://www.tropicos.org/Reference/47124
Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville. http://www.tropicos.org/Reference/1103
Marticorena, C. & M. Quezada. 1985. Catálogo de la Flora Vascular de Chile. Gayana, Bot. 42: 1–157. http://www.tropicos.org/Reference/1592
Böcher, T. W., K. Holmen & K. Jacobsen. 1968. Fl. Greenland (ed. 2) 312 pp. http://www.tropicos.org/Reference/1507
Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone. 2003 and onwards. On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48. http://www.tropicos.org/Project/CNWG:. In R. J. Soreng, G. Davidse, P. M. Peterson, F. O. Zuloaga, T. S. Filgueiras, E. J. Judziewicz & O. Morrone Internet Cat. New World Grasses. Missouri Botanical Garden, St. Louis. http://www.tropicos.org/Reference/1024044
Tovar, Ó. 1993. Las Gramíneas (Poaceae) del Perú. Ruizia 13: 1–480. http://www.tropicos.org/Reference/1000236
Hitchcock, A. S. 1927. The grasses of Ecuador, Peru, and Bolivia. Contr. U.S. Natl. Herb. 24(8): 291–556. http://www.tropicos.org/Reference/16241
Macbride, J. F. 1936. Gramineae, Flora of Peru. Publ. Field Mus. Nat. Hist., Bot. Ser. 13(1/1): 96–261. http://www.tropicos.org/Reference/719
Kucera, C. L. 1998. The Grasses of Missouri 305 pp., University of Missouri Press, Colombia. http://www.tropicos.org/Reference/1018088
Moore, D. M. 1983. Fl. Tierra del Fuego 396 pp. A. Nelson; Missouri Botanical Garden, Oswestry; St. Louis. http://www.tropicos.org/Reference/458
Nicora, E. G., M. E. D. Paula, A. M. Faggi, M. d. Mariano, A. M. M. A., L. R. Parodi, C. A. Petetin, F. A. Roig & Z. R. Agrasar. 1978. Gramineae. 8(3): 1–583. In M. N. Correa Fl. Patagónica. Instituto Nacional de Tecnología Agropecuaria, Buenos Aires. http://www.tropicos.org/Reference/11289
Kitagawa, M. 1979. Poaceae. In Neo-Lineam. Fl. Manshur. J. Cramer, Vaduz. http://www.tropicos.org/Reference/1011206
Gamayunova, A. P. 1956. Poa. Fl. Kazakstana 1: 221–238. http://www.tropicos.org/Reference/1025291
Cope, T. A. 1982. Poaceae. 143: 1–678. In E. Nasir & S. I. Ali Fl. Pakistan. Univ. of Karachi, Karachi. http://www.tropicos.org/Reference/1000702
Soreng, R. J. 1994. Poa in G. W. Douglas, G. B. Straley, and D. Meidinger (eds.). 129–138. In Vasc. Pl. Brit. Columbia. Research Branch, Ministry of Forests, Victoria. http://www.tropicos.org/Reference/1001699
Ovchinnikov, P. N. & A. P. Chukavina. 1957. Poa. Fl. Tadzhiksk. SSR 1: 135–189, 504 + index. http://www.tropicos.org/Reference/1025289
Scholz, H. 1986. Poa studies 5. - The genus Poa (Gramineae) in Greece: Annotated check-list and key to the species. Willdenowia 15: 393–400. http://www.tropicos.org/Reference/27423
Gibbs Russell, G. E., W. G. Welman, E. Reitief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. v. Wyk & A. Nicholas. 1987. List of species of southern African plants. Mem. Bot. Surv. S. Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2). http://www.tropicos.org/Reference/1371
Radford, A. E., H. E. Ahles & C. R. Bell. 1968. Man. Vasc. Fl. Carolinas i–lxi, 1–1183. University of North Carolina Press, Chapel Hill. http://www.tropicos.org/Reference/636
Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York. http://www.tropicos.org/Reference/1515
Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York. http://www.tropicos.org/Reference/1327
Luteyn, J. L. 1999. Páramos, a checklist of plant diversity, geographical distribution, and botanical literature. Mem. New York Bot. Gard. 84: viii–xv, 1–278. http://www.tropicos.org/Reference/1024098
Munz, P. A. & D. D. Keck. 1959. Cal. Fl. 1–1681. University of California Press, Berkeley. http://www.tropicos.org/Reference/1717
Voss, E. G. 1972. Gymnosperms and Monocots. i–xv, 1–488. In Michigan Fl. Cranbrook Institute of Science, Bloomfield Hills, Michigan. http://www.tropicos.org/Reference/1494
Gleason, H. A. & A. Cronquist. 1968. The Pteridophytoa, Gymnospermae and Monocotyledoneae. 1: 1–482. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York. http://www.tropicos.org/Reference/1495
Cronquist, A., A. H. Holmgren, N. H. Holmgren & J. L. Reveal. 1977. Vascular Plants of the Intermountain West, U.S.A. 6: 1–584. In A. J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermount. Fl. Hafner Pub. Co., New York. http://www.tropicos.org/Reference/1725
Davidse, G., M. Sousa Sánchez & A. O. Chater. (eds.) 1994. Alismataceae a Cyperaceae. Fl. Mesoamer. 6: i–xvi, 1–543. http://www.tropicos.org/Reference/8200
Godfrey, R. K. & J. W. Wooten. 1979. Aquatic Wetland Pl. S.E. U.S. Monocot. 1–712. The University of Georgia Press, Athens. http://www.tropicos.org/Reference/1710
Flora of China Editorial Committee. 2006. Fl. China 22: 1–733. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis. http://www.tropicos.org/Reference/1029690
Zuloaga, F. O., E. G. Nicora, Z. E. R. Agrasar, O. Morrone, J. Pensiero & A. M. Cialdella. 1994. Catálogo de la familia Poaceae en la República Argentina. Monogr. Syst. Bot. Missouri Bot. Gard. 47: i–xi, 1–178. http://www.tropicos.org/Reference/43109
Pohl, R. W. 1980. Family 15. Gramineae. In: W. C. Burger, (ed.), Flora Costaricensis. Fieldiana, Bot., n.s. 4: 1–608. http://www.tropicos.org/Reference/5421
Sharp, D. & B. K. Simon. 2002. AusGrass: Grasses of Australia. CD-ROM, Version 1.0. CD–ROM. http://www.tropicos.org/Reference/1026312
Bor, N. L. 1960. Grass. Burma, Ceylon, India & Pakistan i–xviii, 1–767. Pergamon Press, Oxford. http://www.tropicos.org/Reference/21037
KERGUELEN, M. 1993. Index synonymique de la flore de France. Collection Patrimoines Naturels (ser. Patrimonine Sci.) 8: i–xxxviii, 1–196 + pl. http://www.tropicos.org/Reference/1011063
Torres, M. A. 1970. Leersia. In: A. L. Cabrera (ed.), Gramíneas. 4(2): 39. In A. L. Cabrera Fl. Prov. Buenos Aires. Instituto Nacional de Tecnología Agropecuaria, Buenos Aires. http://www.tropicos.org/Reference/20504
Edmondson, J. R. 1980. Poa. 5: 159–1167. In T. G. Tutin, V. H. Heywood, N. A. Burges, D. H. Valentine, S. M. Walters & D. A. Webb Fl. Eur. Cambridge University Press, Cambridge. http://www.tropicos.org/Reference/1000707
Bor, N. L. 1970. Gramineae. Fl. Iranica 70/30: 1–573, t. 1–72. http://www.tropicos.org/Reference/25927
Liou, L. 2003. Poa. Fl. Repub. Pop. Sinicae 9(2): 91–226. http://www.tropicos.org/Reference/1021808
Soreng, R. J., L. M. Giussani & M. A. Negritto. 2003. Poa. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48: 505–580. http://www.tropicos.org/Reference/46337
Rajbhandari, K. R. 1991. A revision of the genus Poa L. (Gramineae) in the Himalaya. Bull. Univ. Mus. Univ. Tokyo 34: 169–249. http://www.tropicos.org/Reference/1001996
Prokudin, Y. N., A. G. Vovk, O. A. Petrova, E. D. Ermolenko & Y. V. Vernichenko. 1977. Poaceae. Zlaki Ukrainy 1–515. http://www.tropicos.org/Reference/1022280
Nikitina, E. V. & G. F. Protopopov. 1952. Poa. Fl. Kirgizsk. SSR 2: 120–137. http://www.tropicos.org/Reference/1025292
Drobov, V. P. 1941. Poa. Fl. Uzbekistan. 1: 234–245. http://www.tropicos.org/Reference/1025293
Filatova, N. S. 1969. Poa. 92–97. In Ill. Oprd. Rast. Kazakh. http://www.tropicos.org/Reference/1025327
Soreng, R. J. 1985. Poa in New Mexico, with a key to middle and southern Rocky Mountain species (Poaceae). Great Basin Naturalist 45: 395–422. http://www.tropicos.org/Reference/31468
Edmondson, J. R. 1985. Poa In: Davis, P. H. (ed.). 9: 470–486. In P. H. Davis Fl. Turkey & E. Aegean Isl. Edinburgh University Press, Edinburgh. http://www.tropicos.org/Reference/1010943
Vickery, J. W. 1970. A taxonomic study of the genus Poa L. in Australia. Contr. New South Wales Natl. Herb. 4: 145–243. http://www.tropicos.org/Reference/36694
Pohl, R. W. & G. Davidse. 1994. 34. Poa L. Fl. Mesoamer. 6: 230–231. http://www.tropicos.org/Reference/1003101
Koyama, T. 1987. Grass. Jap. Neighb. Reg. i–x, 1–570. Kodansha, Tokyo. http://www.tropicos.org/Reference/1000727
Edgar, E. 1986. Poa L. in New Zealand. New Zealand J. Bot. 24: 425–503. http://www.tropicos.org/Reference/1001918
Veldkamp, J. F. 1994. Poa L. (Gramineae) in Malesia. Blumea 38: 409–457. http://www.tropicos.org/Reference/1011203
Roshevits, R. J. 1932. Poa. Fl. Turkmen. 1: 139–146. http://www.tropicos.org/Reference/1025290
Negritto, M. A. & A. M. Anton. 2000. Revisión de las especies de Poa (Poaceae) del noroeste argentino. Kurtziana 28(1): 95–136. http://www.tropicos.org/Reference/1013663
Noltie, H. J. 2000. The Grasses of Bhutan. Fl. Bhutan 3(2): i–vii + 457–883. http://www.tropicos.org/Reference/1020076
Brako, L. & J. L. Zarucchi. (eds.) 1993. Catalogue of the Flowering Plants and Gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45: i–xl, 1–1286. http://www.tropicos.org/Reference/7728

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Poa trivialis var. latifolia Schur:
Turkmenistan (Asia)

Roshevits, R. J. 1932. Poa. Fl. Turkmen. 1: 139–146. http://www.tropicos.org/Reference/1025290

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Poa kitaibelii Schult.:
Hungary (Europe)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa scabra Asch.:
Hungary (Europe)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa trivialis var. seminutra (Waldst. & Kit.) Griseb.:
Turkmenistan (Asia)

Roshevits, R. J. 1932. Poa. Fl. Turkmen. 1: 139–146. http://www.tropicos.org/Reference/1025290

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Poa trivialis var. glabra Döll:
Afghanistan (Asia)
Germany (Europe)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002
Bor, N. L. 1960. Grass. Burma, Ceylon, India & Pakistan i–xviii, 1–767. Pergamon Press, Oxford. http://www.tropicos.org/Reference/21037

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Poa trivialis var. sylvicola (Guss.) Hack.:
Turkmenistan (Asia)

Roshevits, R. J. 1932. Poa. Fl. Turkmen. 1: 139–146. http://www.tropicos.org/Reference/1025290

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Poa uda Honda:
Japan (Asia)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa attica Boiss. & Heldr.:
Greece (Europe)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa trivialis var. filiculmis Scribn. ex Beal:
Canada (North America)
Colombia (South America)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa breviculmis Pilg.:
Chile (South America)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa chrysantha Lindm.:
Argentina (South America)
Chile (South America)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002
Nicora, E. G., M. E. D. Paula, A. M. Faggi, M. d. Mariano, A. M. M. A., L. R. Parodi, C. A. Petetin, F. A. Roig & Z. R. Agrasar. 1978. Gramineae. 8(3): 1–583. In M. N. Correa Fl. Patagónica. Instituto Nacional de Tecnología Agropecuaria, Buenos Aires. http://www.tropicos.org/Reference/11289
Zuloaga, F. O., E. G. Nicora, Z. E. R. Agrasar, O. Morrone, J. Pensiero & A. M. Cialdella. 1994. Catálogo de la familia Poaceae en la República Argentina. Monogr. Syst. Bot. Missouri Bot. Gard. 47: i–xi, 1–178. http://www.tropicos.org/Reference/43109

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Poa maullinica Phil.:
Chile (South America)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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Poa ariguensis Steud.:
Chile (South America)

Marticorena, C. & M. Quezada. 1985. Catálogo de la Flora Vascular de Chile. Gayana, Bot. 42: 1–157. http://www.tropicos.org/Reference/1592

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Poa sylvicola Guss.:
Italy (Europe)
Kyrgyzstan (Asia)
Tajikistan (Asia)
Ukraine (Europe)
China (Asia)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002
Ovchinnikov, P. N. & A. P. Chukavina. 1957. Poa. Fl. Tadzhiksk. SSR 1: 135–189, 504 + index. http://www.tropicos.org/Reference/1025289
Liou, L. 2003. Poa. Fl. Repub. Pop. Sinicae 9(2): 91–226. http://www.tropicos.org/Reference/1021808
Prokudin, Y. N., A. G. Vovk, O. A. Petrova, E. D. Ermolenko & Y. V. Vernichenko. 1977. Poaceae. Zlaki Ukrainy 1–515. http://www.tropicos.org/Reference/1022280
Nikitina, E. V. & G. F. Protopopov. 1952. Poa. Fl. Kirgizsk. SSR 2: 120–137. http://www.tropicos.org/Reference/1025292

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Poa trivialis var. glabra Döll:
Afghanistan (Asia)

Bor, N. L. 1952. The genus Poa Linn. in India. Part II. J. Bombay Nat. Hist. Soc. 51(1): 53–103. http://www.tropicos.org/Reference/1001998

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Poa silvicola Guss.:
Iraq (Asia)
Iran (Asia)
Italy (Europe)
China (Asia)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002
Flora of China Editorial Committee. 2006. Fl. China 22: 1–733. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis. http://www.tropicos.org/Reference/1029690
Bor, N. L. 1970. Gramineae. Fl. Iranica 70/30: 1–573, t. 1–72. http://www.tropicos.org/Reference/25927

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Aira semineutra Waldst. & Kit.:
Hungary (Europe)

SPECIMEN BASED RECORD. Published protolog data. http://www.tropicos.org/Reference/9990002

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National Distribution

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Canada

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

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Distribution

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Distribution: Pakistan (Baluchistan, N.W.F.P. & Kashmir); widespread in temperate regions of the northern hemisphere; extensively introduced elsewhere.

Flora of Pakistan @ eFloras.org

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Physical Description

Morphology

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Poa trivialis is sometimes seeded as a pasture and lawn species. It establishes well in cool, moist, shady sites, including gardens, trails, adjacent woods, and disturbed ground. It is probably introduced in China. Two races (or species) are usually recognized, with subsp. tri-vialis far more widely dispersed beyond the native European–SW Asian range of the species.

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Physical Description

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Perennials, Terrestrial, not aquatic, Stolons or runners present, Stems nodes swollen or brittle, Stems erect or ascend ing, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly basal, below middle of stem, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence a contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence with 2-10 branches, Inflorescence branches more than 10 to numerous, Lower panicle branches whorled, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets with 3-7 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes distinctly unequal, Glumes shorter than adjacent lemma, Glumes keeled or winged, Glumes 3 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma similar in texture to glumes, Lemma 5-7 nerved, Lemma glabrous, Lemma body or surface hairy, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Lemma with long co bwebby white hairs, Palea present, well developed, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.

Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Description

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Loosely tufted perennial, often with extensively creeping stolons but without rhizomes; culms 20-100cm high, erect or spreading from a procumbent base. Leaf-blades flat, 3-20cm long, 2-4.5(-6)mm wide, rather thin and flaccid, abruptly and sharply pointed, scabrid on the margins and both surfaces, sometimes nearly smooth and shining; ligule pointed, 3.5-10mm long. Panicle ovate-pyra¬midal, (9-)15-25cm long, erect or nodding, very loose or contracted and rather dense; branches in clusters of 3-5(-7) at the lower nodes, scabrid. Spikelets 3-4-flowered, ovate or oblong, 3-4mm long, green, purplish or reddish; glumes unequal, the lower lanceolate, 2-3mm long, 1-nerved, the upper ovate, 2.5-3.5 mm long, 3-nerved; lemmas narrowly oblong in side view, 2.5-3.5mm long, acute, usually ciliate only on the keel, woolly at the base; palea a little shorter than the lemma, scabrid along the keels; anthers 1.5-2mm long.

Flora of Pakistan @ eFloras.org

Source: Missouri Botanical Garden

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Rough Meadow-grass is so named from its characteristically scaberulous leaf-sheaths. 1700-2700m.

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Description

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Perennials, tufted, stoloniferous, shoots with or without beadlike swellings. Culms decumbent to geniculate, 20–100 cm tall, 1–2 mm in diam., nodes 3 or 4, scabrid below panicle and nodes. Lower leaf sheaths usually densely retrorsely scabrid, 8–15 cm, subequal to blade, uppermost closed for ca. 1/4 of length; blade flat, papery, 8–20 cm × 2–5 mm, surfaces scabrid, apex acuminate; ligule 3.5–10 mm, abaxially scabrid, acute to acuminate, collar smooth or scabrid, glabrous. Panicle oblong to pyramidal, 9–20 × 2–4 cm; branches obliquely ascending to spreading, 4–5 per node, densely scabrid throughout, longest ca. 4 cm with many spikelets crowded in distal 1/2, pedicels very short. Spikelets 2.5–3.5(–4) mm, florets 2 or 3; vivipary absent; glumes scabrid on keel, lower glume narrow, often sickle-shaped, 1.5–2 mm, 1-veined, upper glume 2.2–3 mm, 3-veined; lemmas ca. 2.5 mm, abaxial surface slightly arched, keel shortly villous for ca. 1/2 of length, marginal veins glabrous or pilulose to short-villous in lower 1/3, intermediate veins prominent, areas between veins minutely bumpy, glabrous; callus webbed, hairs long; palea subequal to lemma, minutely bumpy between keels, glabrous, keels minutely scabrid or bumpy. Anthers ca. 1.5 mm. Fl. and fr. May–Jul.

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Type Information

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Type fragment for Poa breviculmis Pilg.
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. Skottsberg
Locality: Lago Cami, Lagrelius- Insel, Tierra del Fuego., Magallanes, Chile, South America

Type fragment: Pilger, R. K. 1913. Repert. Spec. Nov. Regni Veg. 12: 307.

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Source: National Museum of Natural History Image Collection

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Holotype for Poa trivialis var. filiculmis Scribn. in Beal
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): J. Macoun
Year Collected: 1893
Locality: Vancouver Island, British Columbia, Canada, North America

Holotype: Beal, W. J. 1890. True Grasses. 532.

Source: National Museum of Natural History Image Collection

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Isotype for Poa ariguensis Steud.
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of alleged type specimen
Preparation: Pressed specimen
Collector(s): -. Lech
Locality: Arique., Valdivia, Chile, South America

Isotype: Steudel, E. G. von. 1853. Syn. Pl. Glumac. 1: 259.

Source: National Museum of Natural History Image Collection

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Isotype for Poa maullinica Phil.
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of alleged type specimen
Preparation: Pressed specimen
Collector(s): T. Philippi
Year Collected: 1871
Locality: Llanquihue, Los Lagos, Chile, South America

Isotype: Philippi, R. A. 1896. Anales Univ. Chile. 94: 164.

Source: National Museum of Natural History Image Collection

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Type fragment for Poa maullinica Phil.
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of alleged type specimen
Preparation: Pressed specimen
Collector(s): R. A. Philippi
Locality: Maullin., Llanquihue, Los Lagos, Chile, South America

Type fragment: Philippi, R. A. 1896. Anales Univ. Chile. 94: 164.

Source: National Museum of Natural History Image Collection

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Ecology

Habitat

Habitat & Distribution

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Moist places, grassy places on slopes; 1000–3500 m. Hebei, Jiangsu, Jiangxi, Nei Mongol, N Sichuan, Xinjiang [Afghanistan, Bhutan, India, Indonesia, Japan, Kazakhstan, Kyrgyzstan, Mongolia, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan; SW Asia, Europe; introduced in Africa, Australia, New Zealand, and North and South America].

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Associations

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In Great Britain and/or Ireland:
Foodplant / parasite
Blumeria graminis parasitises live Poa trivialis

Plant / resting place / on
puparium of Cerodontha flavocingulata may be found on leaf of Poa trivialis
Other: major host/prey

Foodplant / miner
larva of Cerodontha fulvipes mines leaf -> sheath of Poa trivialis

Foodplant / gall
stroma of Epichlo causes gall of stem of Poa trivialis

Foodplant / saprobe
sessile, shielded apothecium of Micropeziza poae is saprobic on dead stem of Poa trivialis
Remarks: season: 8

Foodplant / saprobe
colony of Cercosporidium dematiaceous anamorph of Mycosphaerella recutita is saprobic on dead sheath of Poa trivialis

Foodplant / parasite
hypophyllous, long covered by epidermis telium of Puccinia brachypodii var. poae-nemoralis parasitises live leaf of Poa trivialis

Foodplant / parasite
linear telium of Puccinia graminis f.sp. poae parasitises live stem of Poa trivialis

Foodplant / parasite
plentiful, in short rows telium of Puccinia poarum parasitises live leaf of Poa trivialis

Foodplant / spot causer
Spermospora anamorph of Spermospora poagena causes spots on live leaf of Poa trivialis

Foodplant / saprobe
fruitbody of Typhula incarnata is saprobic on dying stem of Poa trivialis

Foodplant / parasite
mainly hypophyllous telium of Uromyces dactylidis parasitises live leaf of Poa trivialis

Source: BioImages - the Virtual Fieldguide (UK)

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Life History and Behavior

Cyclicity

Flower/Fruit

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Fl. & Fr. Per.: July-August.

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Molecular Biology and Genetics

Barcode

Locations of barcode samples

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Collection Sites: world map showing specimen collection locations for Poa trivialis

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage

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Barcode of Life Data Systems (BOLD) Stats

Specimen Records:	7
Specimens with Sequences:	11
Specimens with Barcodes:	10
Public Records:	6
Species:	1
Species With Barcodes:	1

Source: Barcode of Life Data Systems (BOLD)

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Molecular Biology

Statistics of barcoding coverage: Poa trivialis

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Barcode of Life Data Systems (BOLDS) Stats
Public Records: 11
Species: 15
Species With Barcodes: 1

Source: Barcode of Life Data Systems (BOLD)

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Conservation

Conservation Status

National NatureServe Conservation Status

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Canada

Rounded National Status Rank: NNA - Not Applicable

United States

Rounded National Status Rank: NNA - Not Applicable

Source: NatureServe

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NatureServe Conservation Status

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Rounded Global Status Rank: GNR - Not Yet Ranked

Source: NatureServe

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Wikipedia

Poa trivialis

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Poa trivialis (Rough bluegrass; UK: Rough-stalked meadow-grass^[1]), is a perennial plant, and is regarded in the USA as an ornamental plant and is of the Poa family.

1 Description
2 Wildlife Value
3 Photos
4 References
5 External links

Description

It is very common in meadows and pastures throughout Britain. Its preferred habitat is moist, sheltered places. Its herbage is plentiful and fairly nutritious - not as much as Poa annua or Poa pratensis. It is useful for grazing on heavy and damp soil. It also copes well with the polluted atmosphere of towns and cities. It is in flower from June onwards throughout the summer.

Though often considered a weed of golf courses, some use it as a turits lighter green color. It is an invasive species in the Great Lakes region and was first sighted in 1843^[2].

It has short stolons. The leaves are broad and tapering, and the sheathes are very rough. It has shiny leaves like Lolium perenne and Crested Dog's-tail.^[3]

They have pointed ligules 4-10mm long. Compare to Annual Meadow grass Poa annua which is silvery and pointed, and Common Meadow grass Poa pratensis which is short and blunt.

The roughish, slender stem grows 30 to 60 cm high. Compare with smooth meadow grass Poa annua which has a smooth stem. The panicle is green and 15 cm long. The spikelets are egg-shaped.

It has a loose, whorled green panicle, much branched, 15 cm long.

It is also called Orcheston Grass, after a village on Salisbury Plain.^[4]

Wildlife Value

The food plant of the caterpillars of small heath Coenonympha pamphilus, Meadow Brown Maniola jurtina, Gatekeeper Butterfly butterflies; Common Sun beetle Amara aenea - adults feed on the developing seeds, Eupelix cuspidata of the leafhopper family, and Myrmus miriformis a grassbug - feeds on young blades and developing seeds.

It is parasitised by Grass Mildew Blumeria graminis, which causes a white, powdery mildew on it.

Photos

pointed ligules 4-10mm long
loose, whorled green panicle, much branched, 15 cm long.

References

^ Clause 5.3.2.2.3 BS 7370-5
^ "List of invasive species in the Great Lakes Great Lakes United / Union Saint-Laurent Grands Lacs". http://www.glu.org/en/node/199. Retrieved 7 February 2009.
^ BSBI Description retrieved 10 December 2010.
^ Martin John Sutton, Permanent and Temporary Pastures (1929), p. 60

Pink, A. (2004). Gardening for the Million. Project Gutenberg Literary Archive Foundation. http://www.gutenberg.org/etext/11892.

Wikispecies has information related to: Poa trivialis

The Observers Book of Grasses, Sedges and Rushes. Frances Rose. pages 44–45
Natural England description on website
Grasses,Ferns, Mosses and Lichens of Great Britain and Ireland. Phillips, Roger. 1980. page 65.

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Poa trivialis — Details

Rough Meadow-grass learn more about names for this taxon

Table of Contents

Overview

Distribution

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National Distribution

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Distribution

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Physical Description

Morphology

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Physical Description

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Description

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Description

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Type Information

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Ecology

Habitat

Habitat & Distribution

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Associations

Associations

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Life History and Behavior

Cyclicity

Flower/Fruit

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Molecular Biology and Genetics

Barcode

Locations of barcode samples

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Statistics of barcoding coverage

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Molecular Biology

Statistics of barcoding coverage: Poa trivialis

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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

United States

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NatureServe Conservation Status

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Wikipedia

Poa trivialis