Difference between revisions of "Sporobolus buckleyi"
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Revision as of 21:04, 5 November 2020
Plants perennial; cespitose, not rhizomatous. Culms 40-100 cm. Sheaths keeled and flattened below, margins occasionally hairy distally, hairs to 1.2 mm; ligules 0.2-0.4 mm; blades 12-35 cm long, 4-12 mm wide, flat, glabrous abaxially, scabridulous adaxially, margins smooth or scabridulous. Panicles 15-50 cm long, 7-22(30) cm wide, diffuse, ovate; primary branches 2-17 cm, spreading 40-100° from the rachis; secondary branches appressed to loosely spreading, without spikelets on the lower 1/4 - 1/2; pulvini glabrous; pedicels 0.2-1.2 mm, appressed, scabridulous. Spikelets 1-2 mm, purplish to brownish. Glumes unequal, narrowly lanceolate to lanceolate, membranous, prominently keeled; lower glumes 0.6-1 mm; upper glumes 1.1-1.8 mm, slightly shorter than or subequal to the lemmas; lemmas 1.2-2 mm, lanceolate, membranous, glabrous, acute; paleas 1.2-2 mm, ovate, membranous, glabrous, often splitting in two between the veins at maturity; anthers 0.2-0.4 mm, purplish. Fruits 0.6-1 mm, ovoid, slightly flattened, reddish-brown. 2n = 40.
Discussion
Sporobolus buckleyi grows between 0-150 m, in loamy soils near the margins of woods or thorn scrub, sometimes in partial sunlight. Its range extends from southeastern Texas to Belize.
Selected References
None.