Overview

Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

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, Rhizome elongate, creeping, stems distant, Stems nodes swollen or brittle, Stems erect or ascending, 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 cauline, 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 very narrow or filiform, less than 2 mm wide, Leaf blades 2-10 mm wide, Leaf blade margins f olded, involute, or conduplicate, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Ligule a fringed, ciliate, or lobed membrane, Inflorescence terminal, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, 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 1 fertile floret, 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 equal to or longer than adjacent lemma, Glume equal to or longer than spikelet , Glumes 1 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 5-7 nerved, Lemma glabrous, Lemma apex truncate, rounded, or obtuse, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea shorter than lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Type Information

Holotype for Agrostis foliosa Vasey
Catalog Number: US 556229
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. J. Howell
Year Collected: 1881
Locality: Oregon, United States, North America
  • Holotype: Vasey, G. 1886. Bull. Torrey Bot. Club. 13: 55.
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© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections

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Holotype for Agrostis exarata var. littoralis Vasey
Catalog Number: US 2479154
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): T. J. Howell
Year Collected: 1882
Locality: Tillamook Bay., Tillamook, Oregon, United States, North America
  • Holotype: Vasey, G. 1886. Bull. Torrey Bot. Club. 13: 54.
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© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections

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Type fragment for Agrostis foliosa A. Spreng. ex Roem. & Schult.
Catalog Number: US 76270
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): H. A. Schrader
Locality: United States, North America
  • Type fragment: Roemer, J. J. & Schultes, J. A. 1817. Syst. Veg. 2: 373.
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© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections

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Type fragment for Agrostis pallens Trin.
Catalog Number: US 556231
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. D. Hooker
Locality: Borealis., "North America"
  • Type fragment: Trinius, C. B. von. 1845. Mem. Acad. Imp. Sci. Saint-Petersbourg, Ser. 6, Sci. Math., Seconde Pt. Sci. Nat. 6 (2): 328.
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Source: National Museum of Natural History Collections

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Holotype for Agrostis canina var. stolonifera Vasey
Catalog Number: US 838545
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): -. Henderson & -. Howell
Locality: Oregon, United States, North America
  • Holotype: Vasey, G. 1892. Contr. U.S. Natl. Herb. 3 (1): 75.
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© Smithsonian Institution, National Museum of Natural History, Department of Botany

Source: National Museum of Natural History Collections

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Lectotype for Agrostis diegoensis Vasey
Catalog Number: US 2479158
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): C. R. Orcutt
Year Collected: 1884
Locality: Mt., San Diego, California, United States, North America
  • Lectotype: Vasey, G. 1886. Bull. Torrey Bot. Club. 13: 55.
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Source: National Museum of Natural History Collections

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Holotype for Agrostis lepida Hitchc. in Jeps.
Catalog Number: US 1385810
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): A. S. Hitchcock
Year Collected: 1908
Locality: Siberian Pass, Sequoia Natl. Park., California, United States, North America
  • Holotype: Hitchcock, A. S. 1912. Fl. Calif. 1: 121.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Agrostis pallens

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Agrostis pallens

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
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: N3 - Vulnerable

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

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Wikipedia

Agrostis pallens

Agrostis pallens is a species of grass known by the common name seashore bent grass. It is native to western North America from British Columbia to Montana to California, where it grows in many types of habitat.

Description[edit]

Agrostis pallens is a perennial bunchgrass growing 10 to 70 centimeters in height, sometimes from a rhizome. The leaves vary in width and length but are generally not more than 5 centimeters long. The inflorescence is a narrow array of thin branches bearing small clusters of spikelets, each spikelet being just a few millimeters long.

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Names and Taxonomy

Taxonomy

Comments: Following Kartesz (1999), A. diegoensis is included in A. pallens.

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