Overview

Distribution

Localities documented in Tropicos sources

Dichanthelium ovale subsp. villosissimum (Nash) Freckmann & Lelong:
Guatemala (Mesoamerica)
Honduras (Mesoamerica)
Mexico (Mesoamerica)
Nicaragua (Mesoamerica)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
  • Barkworth, M. E., K. M. Capels, S. Long & M. B. Piep. 2003. Magnoliophyta: Commelinidae (in part): Poaceae, part 2. 25: i–xxv, 1–783. In Fl. N. Amer. Oxford University Press, New York.   http://www.tropicos.org/Reference/1021466 External link.
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Localities documented in Tropicos sources

Panicum ovale var. villosum (A. Gray) Lelong:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Panicum acuminatum var. villosum (A. Gray) Beetle:
Guatemala (Mesoamerica)
Honduras (Mesoamerica)
Mexico (Mesoamerica)
Nicaragua (Mesoamerica)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
  • Espejo Serna, A., A. R. López-Ferrari & J. Valdés-Reyna. 2000. Poaceae. Monocot. Mexic. Sinopsis Floríst. 10: 7–236 [and index].   http://www.tropicos.org/Reference/1015183 External link.
  • Zuloaga, F. O., R. P. Ellis & O. Morrone. 1993. A revision of Panicum subg. Dichanthelium sect. Dichanthelium (Poaceae: Panicoideae: Paniceae) in Mesoamerica, the West Indies, and South America. Ann. Missouri Bot. Gard. 80(1): 119–190.   http://www.tropicos.org/Reference/40033 External link.
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Localities documented in Tropicos sources

Panicum villosissimum var. pseudopubescens (Nash) Fernald:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Panicum villosissimum Nash:
Guatemala (Mesoamerica)
Honduras (Mesoamerica)
Mexico (Mesoamerica)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Panicum praecocius Hitchc. & Chase:
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Panicum olivaceum Hitchc. & Chase:
Belize (Mesoamerica)
Costa Rica (Mesoamerica)
Guatemala (Mesoamerica)
Honduras (Mesoamerica)
Mexico (Mesoamerica)
Venezuela (South America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Dichanthelium acuminatum var. villosum (A. Gray) Gould & C.A. Clark:
Canada (North America)
Guatemala (Mesoamerica)
Honduras (Mesoamerica)
Mexico (Mesoamerica)
Nicaragua (Mesoamerica)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Entolasia olivacea Stapf:
Central African Republic (Africa & Madagascar)
Congo (Brazzaville) (Africa & Madagascar)
Cameroon (Africa & Madagascar)
Gabon (Africa & Madagascar)
Guinea (Africa & Madagascar)
Tanzania (Africa & Madagascar)
Uganda (Africa & Madagascar)
South Africa (Africa & Madagascar)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Physical Description

Morphology

Physical Description

Perennials, Terrestrial, not aquatic, Rhizomes present, Stolons or runners presen t, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Plants conspicuously hairy, grayish, or wooly, 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 mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath hairy, hispid or prickly, Leaf sheath hairy at summit, throat, or collar, Leaf sheath and blade differentiated, Leaf blades lanceolate, Leaf blades 2-10 mm wide, Leaf blades 1-2 cm wide, Leaf blades 2 or more cm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Leaf blades more or less hairy, Ligule present, Ligule a fringe of hairs, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence solitary, with 1 spike, fascicle, g lomerule, head, or cluster per stem or culm, Inflorescence branches more than 10 to numerous, Flowers bisexual, Spikelets pedicellate, Spikelets dorsally compressed or terete, Inflorescence or spikelets partially hidden in leaf sheaths, subtended by spatheole, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets with 2 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating below the glumes, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes distinctly unequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes 3 nerved, Glumes 4-7 nerved, Lemma similar in texture to glumes, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma becoming indurate, enclosing palea and caryopsis, Lemma 3 nerved, Lemma 5-7 nerved, Lemma 8-15 nerved, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lem ma awnless, Lemma margins inrolled, tightly covering palea and caryopsis, Lemma straight, Palea present, well developed, Palea about equal to lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Type Information

Possible isotype for Panicum olivaceum Hitchc. & Chase
Catalog Number: US 823211
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): H. von Türckheim
Year Collected: 1877
Locality: Louis Cultis pr. Cobán., Alta Verapaz, Guatemala, Central America
Elevation (m): 1341 to 1341
  • Possible isotype: Hitchcock, A. S. & Chase, M. A. 1910. Contr. U.S. Natl. Herb. 15: 225.; Hitchcock, A. S. & Chase, M. A. 1910. Contr. U.S. Natl. Herb. 15: 225, f. 234.
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Holotype for Panicum olivaceum Hitchc. & Chase
Catalog Number: US 823209
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): H. von Türckheim
Year Collected: 1888
Locality: Cobán, Alta Verapaz, Guatemala, Central America
  • Holotype: Hitchcock, A. S. & Chase, M. A. 1910. Contr. U.S. Natl. Herb. 15: 225.; Hitchcock, A. S. & Chase, M. A. 1910. Contr. U.S. Natl. Herb. 15: 225, f. 234.
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Isotype for Panicum villosissimum Nash
Catalog Number: US 743139
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): J. K. Small
Year Collected: 1895
Locality: Ocmulgee River below Macon., Bibb, Georgia, United States, North America
  • Isotype: Nash, G. V. 1896. Bull. Torrey Bot. Club. 23: 149.
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Isotype for Panicum villosissimum Nash
Catalog Number: US 2383627
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): J. K. Small
Year Collected: 1895
Locality: Ocmulgee River swamp, below Macon., Bibb, Georgia, United States, North America
  • Isotype: Nash, G. V. 1896. Bull. Torrey Bot. Club. 23: 149.
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Holotype for Panicum praecocius Hitchc. & Chase
Catalog Number: US 558686
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): V. H. Chase
Year Collected: 1900
Locality: Near Wady Petra., Stark, Illinois, United States, North America
  • Holotype: Hitchcock, A. S. & Chase, M. A. 1906. Rhodora. 8: 206.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Dichanthelium villosissimum

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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