Difference between revisions of "Sporobolus purpurascens"
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|distribution=Tex. | |distribution=Tex. | ||
| − | |discussion=<p>Sporobolus purpurascens grows in oak scrub, prairie grasslands, and sandy sites near railroad crossings and roadsides, at elevations from 2-300 m. It extends from southern Texas through eastern Mexico, the West Indies, and Central America to Brazil.</p> | + | |discussion=<p><i>Sporobolus purpurascens</i> grows in oak scrub, prairie grasslands, and sandy sites near railroad crossings and roadsides, at elevations from 2-300 m. It extends from southern Texas through eastern Mexico, the West Indies, and Central America to Brazil.</p> |
|tables= | |tables= | ||
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name=Sporobolus purpurascens | name=Sporobolus purpurascens | ||
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|authority=(Sw.) Ham. | |authority=(Sw.) Ham. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |illustrator=Linda A. Vorobik | + | |illustrator=Linda A. Vorobik;Hana Pazdírková |
| + | |illustration copyright=Utah State University | ||
|distribution=Tex. | |distribution=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_687.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
Latest revision as of 17:58, 11 May 2021
Plants perennial; cespitose, not rhizomatous. Culms 25-95 cm. Sheaths rounded below, upper margins sometimes sparsely hispid-ciliate, apices hairy, hairs to 5 mm; ligules 0.2-0.3 mm; blades 8-22 cm long, 2-5 mm wide, flat or involute, glabrous abaxially, scabridulous adaxially, margins scabrous, sometimes sparsely hispid. Panicles 5-30 cm long, 0.4-1.6 cm wide, narrow, contracted; lower nodes with 3 or 5 branches; primary branches 0.3-2 cm, appressed or spreading to 20° from the rachis, spikelet-bearing to near the base; secondary branches appressed; pedicels 0.2-2.5 mm, appressed, scabridulous. Spikelets 2.8-3.8 mm, purplish-red. Glumes unequal, linear-lanceolate to lanceolate or ovate, hyaline to membranous; lower glumes 0.9-3 mm; upper glumes 2.9-3.8 mm, subequal to the florets; lemmas 2.9-3.8 mm, ovate, membranous, glabrous, acute; paleas 2.9-3.8 mm, ovate, membranous; anthers 1.5-2 mm, yellowish to purplish. Fruits 1.8-2.3 mm, ellipsoid, somewhat laterally flattened, rugulose, reddish-brown. 2n = 60.
Discussion
Sporobolus purpurascens grows in oak scrub, prairie grasslands, and sandy sites near railroad crossings and roadsides, at elevations from 2-300 m. It extends from southern Texas through eastern Mexico, the West Indies, and Central America to Brazil.
Selected References
None.