Difference between revisions of "Eriochloa pseudoacrotricha"
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|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
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Revision as of 21:02, 5 November 2020
Plants perennial; cespitose, not rhizomatous. Culms 40-80 cm, erect, not rooting at the lower nodes; internodes glabrous; nodes hairy. Sheaths glabrous, rarely with a few appressed hairs; collars glabrous; ligules 0.4-1 mm; blades 10-20 cm long, 2-4 mm wide, linear, flat, straight, spreading, glabrous or hairy adaxially. Panicles 5-15 cm long, 0.3-1 cm wide; rachises scabrous; branches 2-8, 25-45 mm long, 0.3-0.6 mm wide, divergent to spreading, glabrous, winged, with 2-40 spikelets in unequally pedicellate pairs at the middle of the branches; pedicels 1-3 mm, glabrous, apices hairy. Spikelets 3.6-5.4 mm long, 1.1-1.4 mm wide, lanceolate. Upper glumes 1-1.3 times as long as the lower lemmas, lanceolate, hairy, 5-veined, acuminate, awned, awns 0.5-1.5 mm; lower florets sterile; lower lemmas 3.5-5.2 mm long, 1.1-1.4 mm wide, lanceolate, setose, 5-veined, mucronate to awned; lower paleas absent; upper lemmas 2.1-3.7 mm, elliptic, apices rounded, awned, awns 0.4-0.8 mm; upper paleas indurate, blunt, not rugose. 2n = 36.
Discussion
Eriochloa pseudoacrotricha is an Australian species that has been introduced into south Texas and Mississippi. It grows in waste areas.
Selected References
None.