familyPoaceae
subfamilyPoaceae subfam. Panicoideae
genusSetaria
subgenusSetaria subg. Reverchoniae
speciesSetaria reverchonii
subspeciesSetaria reverchonii subsp. firmula
Difference between revisions of "Setaria reverchonii subsp. firmula"
Common names: Knotgrass
Synonyms: Setaria firmula Panicum firmulum
Treatment appears in FNA Volume 25. Treatment on page 546.
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Latest revision as of 18:56, 11 May 2021
Sheaths with papillose-based hairs, sometimes nearly glabrous; blades 4-10 cm long, 4-7 mm wide. Spikelets 3-3.2 mm long, subtending bristles 3-6.4 mm. Lower glumes 5-7-veined; upper glumes 5-7-veined. 2n = 36.
Discussion
Setaria reverchonii subsp. firmula is endemic to the sandy prairies of southeastern Texas.
Selected References
None.
Lower Taxa
None.