Sporobolus creber
Plants perennial; densely cespitose, not rhizomatous. Culms 6.5-100 cm. Sheaths rounded, margins ciliate, apices with tufts of hairs to 2 mm; ligules about 0.5 mm, the sides with a few hairs to 1.5 mm; blades 7-30 cm long, 1-2 (3) mm wide, flat, becoming involute, tapering to a fine-point. Panicles 20-40 cm long, 0.4-1 cm wide, narrowly contracted, sometimes spikelike; primary branches appressed to strongly ascending, spikelet-bearing to the base, lower branches 1.5-3 cm, much shorter than the adjacent internodes, usually appressed; pedicels 0.1-0.5 mm. Spikelets 1.1-1.5 mm, dark green. Glumes obtuse, often erose; lower glumes 0.4-0.5 mm; upper glumes 0.5-0.6 mm, less than 2/3 as long as the florets; lemmas 1.1-1.5 mm, glabrous, 1-veined, obtuse; paleas similar to the lemmas or slightly longer; anthers 2, 0.4-0.6 mm. Fruits 0.7-0.8 mm, often adhering to the floret at maturity, quadrangular to somewhat turbinate, redbrown, apices truncate and concave. 2n = unknown.
Discussion
Sporobolus creber is an Australian species that was recently found growing spontaneously on a ranch in Glenn County, California. It is related to S. indicus, but differs in its widely spaced, closely appressed, and densely spikeleted branches.
Selected References
None.
Lower Taxa
"decumbent" is not a number.