Difference between revisions of "Eragrostis sessilispica"
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|distribution=Kans.;Okla.;N.Mex.;Tex. | |distribution=Kans.;Okla.;N.Mex.;Tex. | ||
| − | |discussion=<p>Eragrostis sessilispica grows in prairies, limestone mesas, partial forest openings, and grasslands, gener¬ally in sandy soils, at 0-1220 m, often in association with Prosopsis and Quercus. Its range extends into northern Mexico.</p> | + | |discussion=<p><i>Eragrostis sessilispica</i> grows in prairies, limestone mesas, partial forest openings, and grasslands, gener¬ally in sandy soils, at 0-1220 m, often in association with Prosopsis and <i>Quercus</i>. Its range extends into northern Mexico.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Eragrostis sessilispica | name=Eragrostis sessilispica | ||
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|authority=Buckley | |authority=Buckley | ||
|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=Kans.;Okla.;N.Mex.;Tex. | |distribution=Kans.;Okla.;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_164.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
Latest revision as of 18:57, 11 May 2021
Plants perennial; cespitose, with innovations, without rhizomes, not glandular. Culms 30-90 cm, erect or decumbent, glabrous below the nodes. Sheaths hairy at the apices and on the collars, sometimes also on the distal portion of the margins, hairs to 5 mm; ligules 0.4-0.5 mm; blades 5-30 cm long, 1-3 mm wide, usually involute, sometimes flat, abaxial surfaces glabrous or sparsely pilose, hairs to 5 mm, adaxial surfaces scabridulous. Panicles 20-65 cm long, 10-35 cm wide, ovate, open; primary branches 2-20(24) cm, widely spaced, diverging 20-100° from the rachises, not rebranched, naked basally; pulvini hairy; pedicels 0-12 mm, appressed, proximal spikelets on each branch sessile or subsessile, the pedicels shorter than 0.4 mm. Spikelets 5-13 mm long, 1.4-3 mm wide, oblong to oblanceolate, stramineous to reddish-purple, with 3-12 florets; disarticulation tardy, basipetal, in the rachilla below the florets, glumes persistent. Glumes lanceolate, broad basally, indurate; lower glumes 2.5-6 mm; upper glumes 3-6 mm, apices acuminate; lemmas 3-5 mm, narrowly ovate to lanceolate, indurate, apices acuminate; paleas 2.4-4.6 mm, indurate, gibbous basally but the sides not projecting beyond the lemmas, keels ciliolate, apices obtuse; anthers 3, 0.3-0.5 mm, reddish-brown. Caryopses 0.9-1.5 mm, ovoid to pyriform, laterally flattened, tapering distally, smooth to faintly striate, brownish. 2n = 40.
Distribution
Kans., Okla., N.Mex., Tex.
Discussion
Eragrostis sessilispica grows in prairies, limestone mesas, partial forest openings, and grasslands, gener¬ally in sandy soils, at 0-1220 m, often in association with Prosopsis and Quercus. Its range extends into northern Mexico.
Selected References
None.