Cynodon plectostachyus

(K. Schum.) Pilg.
Common names: Stargrass
Treatment appears in FNA Volume 25. Treatment on page 237.

Plants stoloniferous, not rhizomatous; stolons to 2 mm thick, arching. Culms 60-100 cm tall, 1-4 mm thick, glabrous. Sheaths mostly glabrous or sparsely to densely pilose, with long hairs adjacent to the ligules; ligules 1-2 mm; blades to 30 cm long, 4-8 mm wide, both surfaces scabrous and densely pubescent. Panicles with 6-20 subdigitate branches; branches 3-10 cm, in (1) 2-7 closely spaced whorls, axes triquetrous. Spikelets 2.5-3 mm, closely imbricate; rachillas prolonged, glabrous, sometimes terminating in a vestigial floret. Lower glumes 0.1-0.3 mm; upper glumes 0.4-0.6 mm; lemmas 2.4-3 mm, keels not winged, keels and margins pubescent, hairs 0.3-0.4 mm; paleas stiffly ciliate on the keels. 2n = 18, 36.

Discussion

Cynodon plectostachyus is native to tropical Africa. Its status in the Flora region is unclear. The records shown are from non-cultivated plants, but it is not known whether they represent established populations. Cynodon plectostachyus is not frost-tolerant.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Cynodon plectostachyus"
Mary E. Barkworth +
(K. Schum.) Pilg. +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
triquetrous +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
pubescent +  and glabrous +
involute +  and convolute +
4mm;8mm +
spikelike +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Stargrass +
60 cm600 mm <br />0.6 m <br /> (100 cm1,000 mm <br />1 m <br />) +
ascending +  and erect +
4 cm40 mm <br />0.04 m <br /> (100 cm1,000 mm <br />1 m <br />) +
not woody +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
muticous +  and keeled +
membranous +
uncinate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
subdigitate +  and digitate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +  and cartilaginous +
sometimes longer +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
inconspicuous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
concealed +  and prominent +
2 +  and 1 +
2-keeled +
dry +  and fleshy +
spikelike +
mostly glabrous or +  and sparsely densely pilose +
1 +  and 60 +
compressed +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1 (?) +  and 3 (?) +
compound +  and simple +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Gramineae +
Cynodon plectostachyus +
species +
membranous +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
7 +  and 13 +
not rhizomatous +  and stoloniferous +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +