Sporobolus creber

De Nardi
Treatment appears in FNA Volume 25. Treatment on page 124.

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

None.

"decumbent" is not a number.

... more about "Sporobolus creber"
quadrangular +, fusiform +, obovoid +  and ellipsoid +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
turbinate +  and quadrangular to somewhat +
Paul M. Peterson +, Stephan L. Hatch +  and Alan S. Weakley +
De Nardi +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
7 cm70 mm <br />0.07 m <br /> (30 cm300 mm <br />0.3 m <br />) +
pubescent +  and glabrous +
tapering +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
spikelike +
triangular +  and dome--shaped +
sometimes longer +
membranous +
6.5 cm65 mm <br />0.065 m <br /> (100 cm1,000 mm <br />1 m <br />) +
not woody +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
concave +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
shorter or longer +
subtending +
uncinate +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
chartaceous +  and membranous +
sometimes longer +
0.5 cm5 mm <br />0.005 m <br /> (?) +
inconspicuous +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
concealed +  and prominent +
2 +  and 1 +
20cm +  and 40cm +
spikelike +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
mucilaginous +
adherent +  and free +
dry +  and fleshy +
appressed;strongly ascending +
spikelike +
1 +  and 60 +
rounded +  and laterally compressed +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Sporobolus creber +
Sporobolus +
species +
membranous +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
quadrangular +, fusiform +, obovoid +  and ellipsoid +
7 (?) +  and 13 (?) +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +