Difference between revisions of "Schizachyrium sanguineum"
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name=Schizachyrium sanguineum | name=Schizachyrium sanguineum | ||
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|authority=(Retz.) Alston | |authority=(Retz.) Alston | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Puerto Rico;N.Mex.;Tex.;Virgin Islands;Ala.;Ga.;Ariz.;Fla. | |distribution=Puerto Rico;N.Mex.;Tex.;Virgin Islands;Ala.;Ga.;Ariz.;Fla. | ||
|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_1620.xml |
|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Andropogoneae | |tribe=Poaceae tribe Andropogoneae | ||
Latest revision as of 18:57, 11 May 2021
Plants cespitose. Culms 40-120 cm, erect, not rooting or branching at the lower nodes, glabrous. Sheaths glabrous, rounded; ligules 0.7-2 mm; blades 7-20 cm long, 1-6 mm wide, usually with long, papillose-based hairs basally, glabrous elsewhere, sometimes scabrous, without a longitudinal stripe of white, spongy tissue. Peduncles 4-6 cm; rames 4-15 cm, not open, usually almost fully exserted at maturity; internodes 4-6 mm, straight, from mostly glabrous with a tuft of hairs at the base to densely hirsute all over. Sessile spikelets 5-9 mm; calluses 0.5-1 mm, hairs to 2 mm; lower glumes glabrous or densely pubescent; upper lemmas cleft for (2/3)3/4-7/8 of their length; awns 15-25 mm. Pedicels 3-6 mm long, 0.3-0.5 mm wide at the base, gradually widening to about 0.6-0.8 mm at the top, straight. Pedicellate spikelets 3-5 mm, usually evidently shorter than the sessile spikelets, sterile or staminate, awned, awns 0.3-6 mm.
Distribution
Puerto Rico, N.Mex., Tex., Virgin Islands, Ala., Ga., Ariz., Fla.
Discussion
Schizachyrium sanguineum extends from the southern United States to Chile, Paraguay, and Uruguay.
Selected References
None.
Key
| 1 | Lower glumes of the sessile spikelets glabrous or scabrous; pedicels ciliate on 1 edge | Schizachyrium sanguineum var. sanguineum |
| 1 | Lower glumes of the sessile spikelets pubescent to hirsute; pedicels ciliate on both edges | Schizachyrium sanguineum var. hirtiflorum |