Overview

Distribution

National Distribution

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, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem nodes bearded or hairy, 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 smooth, glabrous, Leaf sheath or blade keeled, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blade margins folded, involute, or conduplicate, Leaf blade with prominently raised or widened midvein, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule an unfringed eciliate membrane, Ligule elongated, 1-3 cm, Inflorescence terminal, Inflorescence a den se slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence single raceme, fascicle or spike, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets paired at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Inflorescence disarticulating between nodes or joints of rachis, rachis fragmenting, Spikelets disarticulating below the glumes, Spikelets falling with parts of disarticulating rachis or pedicel, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes shorter than adjacent lemma, Glumes awned, awn 1-5 mm or longer, Glumes 1 nerved, Lemma 3 nerved, Lemma body or surface hairy, Lemma apex acute or acuminate, Lemma mucronate, very shortly beaked or awned, less than 1-2 mm, Lemma distinctly awned , more than 2-3 mm, Lemma with 1 awn, Lemma awn less than 1 cm long, Lemma awned from tip, Lemma margins thin, lying flat, Lemma straight, Lemma surface pilose, setose or bristly, Palea present, well developed, Palea membranous, hyaline, 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.
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Dr. David Bogler

Source: USDA NRCS PLANTS Database

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Type Information

Isotype for Pleopogon setosum Nutt.
Catalog Number: US 3376156
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): W. Gambel
Year Collected: 1841
Locality: Near Santa Fe., Santa Fe, New Mexico, United States, North America
  • Isotype: Nuttall, T. 1848. Proc. Acad. Nat. Sci. Philadelphia. 4: 25.
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Type fragment for Lycurus alopecuroides Griseb.
Catalog Number: US 996080
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Status verified by specimen annotations only
Preparation: Pressed specimen
Collector(s): P. G. Lorentz
Year Collected: 1879
Locality: Argentina, South America
  • Type fragment: Grisebach, A. H. R. 1874. Abh. Königl. Ges. Wiss. Göttingen. 19: 255.
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Syntype for Lycurus phleoides var. glaucifolius Beal
Catalog Number: US 996079
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): C. G. Pringle
Year Collected: 1885
Locality: Near Chihuahua., Chihuahua, Mexico, North America
  • Syntype: Beal, W. J. 1896. Grasses N. Amer. 2: 271.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Lycurus setosus

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


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Statistics of barcoding coverage: Lycurus setosus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

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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Wikipedia

Lycurus setosus

Lycurus setosus is a species of grass in the Poaceae family, commonly known as the bristly wolfstail. It is found at high elevations in dry areas of the south western United States, as well as in Bolivia and Argentina.

Description[edit]

Lycurus setosus is a perennial mountain grass with a tufted habit. The erect stems have several nodes and grow from 30 cm (12 in) to 50 cm (20 in) in height and may have a few branches. The leaf blades are glabrous and grow up to 10 cm (3.9 in) long but only 2 mm (0.1 in) wide. They are rough or bristly and have a white midrib below. The flower panicles are 4 cm (1.6 in) to 8 cm (3.1 in) long and about 8 mm (0.3 in) wide. They are also bristly. It can be distinguished from the rather similar common wolfstail (Lycurus phleoides) by the erect culms, longer ligules and differently shaped tips to the upper leaves. [1]

Habitat and range[edit]

Lycurus setosus grows at altitudes of between 570 m (1,870 ft) and 3,400 m (11,200 ft). It is found on arid, free draining land, on mesas and rocky slopes. It occurs in the south western states of the United States and in northern Mexico. A separate population occurs in similar habitats in Argentina and Bolivia.[1]

References[edit]

  1. ^ a b Lycurus setosus (Nutt.) C. Reeder Grass Manual on the Web. Retrieved 2011-11-23.
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Names and Taxonomy

Taxonomy

Comments: Transferred to Muhlenbergia by P.M. Peterson and J.T. Columbus (2008) based on molecular evidence; new combination is Muhlenbergia alopecuroides since M. setosa was used previously.

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