Difference between revisions of "Trisetum aureum"
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Revision as of 19:13, 24 September 2019
Plants annual, without sterile shoots; tufted. Culms 7-30 cm, glabrous, erect, spreading, or geniculate. Sheaths somewhat inflated, glabrous or villous; blades to 10 cm long, to 3 mm wide, flat, subglabrous to villous. Panicles 1-5 cm long, 0.5-3 cm wide, pyramidal to ovoid, dense, shiny, yellowish to tan. Spikelets 2.5-3.5 mm, with 2-3 florets. Glumes unequal; lower glumes 2-2.5 mm long, narrower than the upper glumes, 1-veined; upper glumes 2.5-3 mm, 3-veined; callus hairs 0.3-0.4 mm; lemmas 1.6-2.7 mm, glabrous or hairy, with wide hyaline margins, apices bifid, teeth to about 0.5 mm, awned, awns 2-6 mm, arising from above midlength and exceeding the apices, slightly bent; anthers 1-1.5 mm. 2n = unknown.
Discussion
Trisetum aureum is native to the Mediterranean region. It was collected from a ballast dump in Camden, New Jersey, in 1896 (Hitchcock 1951), and has not been reported since from the Flora region.
Selected References
None.