Difference between revisions of "Muhlenbergia utilis"
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|distribution=Calif.;Ariz.;Tex.;Nev. | |distribution=Calif.;Ariz.;Tex.;Nev. | ||
| − | |discussion=<p | + | |discussion=<p>Muhlenbergia utilis grows in wet soils along streams, ponds, and depressions in grasslands and alkaline or gypsiferous plains, at elevations of 200-1800 m. Its range extends from the southern United States through Mexico to Costa Rica.</p> |
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik and Annaliese Miller | ||
|distribution=Calif.;Ariz.;Tex.;Nev. | |distribution=Calif.;Ariz.;Tex.;Nev. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_749.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
Revision as of 17:18, 30 October 2019
Plants perennial; rhizomatous, not cespitose. Culms 7-30 cm tall, 0.5-1 mm thick, erect to decumbent; internodes mostly smooth to slightly nodulose, minutely pubescent or glabrous below the nodes. Sheaths shorter or longer than the internodes, glabrous; ligules 0.2-0.8 mm, membranous, truncate; blades 0.5-4.7 cm long, 0.2-1.8 mm wide, usually involute, sometimes flat, often at right angles to the culm, glabrous abaxially, hirtellous adaxially. Panicles 1-5 cm long, 0.1-0.4 cm wide, contracted, usually partially included in the upper sheaths, rachises usually visible between the branches; primary branches 0.2-1.2 cm, usually closely appressed at maturity, rarely diverging up to 30° from the rachises; pedicels 0.1-1.1 mm, glabrous. Spikelets 1.4-2.4 mm. Glumes subequal, 0.5-1.4 mm, 1/3 – 1/2 as long as the lemmas, yellowish to light green, glabrous, 1(2-3)-veined, acute, unawned; lemmas 1.3-2.4 mm, lanceolate, green or purplish, glabrous or the calluses and margins appressed-pubescent, hairs shorter than 0.3 mm, apices acute, unawned; paleas 1-2 mm, lanceolate, glabrous, acute; anthers 0.7-1.4 mm, yellow to purplish. Caryopses 0.7-1.2 mm, ellipsoid to ovoid, brown. 2n = 20.
Distribution
Calif., Ariz., Tex., Nev.
Discussion
Muhlenbergia utilis grows in wet soils along streams, ponds, and depressions in grasslands and alkaline or gypsiferous plains, at elevations of 200-1800 m. Its range extends from the southern United States through Mexico to Costa Rica.
Selected References
None.