Difference between revisions of "Eragrostis erosa"
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|distribution=N.Mex.;Tex. | |distribution=N.Mex.;Tex. | ||
| − | |discussion=<p>Eragrostis erosa grows on rocky slopes and hills, at 1200-2300 m, often in association with Pinus edulis, Juniperus monosperma, and Bouteloua gracilis. Its range extends from New Mexico and western Texas to northern Mexico.</p> | + | |discussion=<p><i>Eragrostis erosa</i> grows on rocky slopes and hills, at 1200-2300 m, often in association with <i>Pinus edulis</i>, <i>Juniperus monosperma</i>, and <i>Bouteloua gracilis</i>. Its range extends from New Mexico and western Texas to northern Mexico.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Eragrostis erosa | name=Eragrostis erosa | ||
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|authority=Scribn. ex Beal | |authority=Scribn. ex Beal | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |illustrator=Linda A. Vorobik | + | |illustrator=Linda A. Vorobik;Cindy Roché |
| + | |illustration copyright=Utah State University | ||
|distribution=N.Mex.;Tex. | |distribution=N.Mex.;Tex. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_156.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
Latest revision as of 17:57, 11 May 2021
Plants perennial; cespitose, with innovations, without rhizomes, not glandular. Culms 70-110 cm, erect, glabrous below the nodes. Sheaths hairy at the apices and sometimes on the upper margins, hairs to 4 mm, not papillose-based; ligules 0.2-0.4 mm; blades (8)12-30 cm long, 1.5-3.8 mm wide, flat to involute, abaxial surfaces glabrous, adaxial surfaces scabridulous, glabrous or sparsely hairy, hairs to 4 mm. Panicles 25-45 cm long, (5)12-30 cm wide, broadly ovate, open; primary branches mostly 4-20 cm, diverging 20-90° from the rachises, capillary, sinuous; pulvini glabrous or hairy; pedicels 1-18 mm, appressed or divergent, proximal spikelets on each branch usually with pedicels shorter than 5 mm. Spikelets 5-9 mm long, 1-3 mm wide, lanceolate, plumbeous, with 5-12 florets; disarticulation acropetal, glumes first, then the lemmas, paleas persistent. Glumes lanceolate to ovate, membranous; lower glumes 1.3-2.4 mm; upper glumes 1.6-2.6 mm; lemmas 2.4-3 mm, ovate, mostly membranous, hyaline near the margins and apices, lateral veins inconspicuous, apices acute; paleas 1.5-3 mm, hyaline, narrower than the lemmas, apices obtuse to truncate; anthers 3, 0.6-1.7 mm, purplish. Caryopses 0.8-1.6 mm, subellipsoid, terete to somewhat laterally compressed, with a well-developed adaxial groove, faintly striate, opaque, reddish-brown. 2n = unknown.
Discussion
Eragrostis erosa grows on rocky slopes and hills, at 1200-2300 m, often in association with Pinus edulis, Juniperus monosperma, and Bouteloua gracilis. Its range extends from New Mexico and western Texas to northern Mexico.
Selected References
None.