Paspalum conjugatum

P.J. Bergius
Common names: Sour paspalum
Treatment appears in FNA Volume 25. Treatment on page 572.

Plants perennial; stoloniferous. Culms 15-80 cm, erect; nodes glabrous. Sheaths glabrous, pubescent distally; ligules 0.5-0.8 mm; blades 7-23 cm long, 1.5-8 mm wide, flat. Panicles terminal, usually composed of a pair of branches, a third branch sometimes present below the terminal pair; branches 2.5-12.7 cm, diverging to spreading, often arcuate, persistent; branch axes 0.2-0.8 mm wide, glabrous, margins scabrous, terminating in a reduced spikelet. Spikelets 1.3-1.9 mm long, 0.8-1.1 mm wide, solitary, appressed to the branch axes, ovate, stramineous. Lower glumes absent; upper glumes pilose on the margins, veinless or 2-3-veined; lower lemmas glabrous, veinless or 2-3-veined; upper florets whitish to golden yellow. Caryopses 0.9-1.1 mm, white to yellow. 2n = 18, 20, 40, 80.

Distribution

Puerto Rico, Tex., La., Utah, Ala., Pacific Islands (Hawaii), Miss., Virgin Islands, Fla.

Discussion

Paspalum conjugatum is native to tropical and subtropical regions of both the Western and Eastern hemispheres, including the Flora region. It grows in disturbed areas and at the edges of forests, and is sometimes used as a lawn grass.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Paspalum conjugatum"
80 +, 40 +, 20 +  and 18 +
rounded +
anatomy +  and kranz +
Charles M. Allen +  and David W. Hall +
P.J. Bergius +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
7 cm70 mm <br />0.07 m <br /> (23 cm230 mm <br />0.23 m <br />) +
usually linear +  and lanceolate occasionally ovate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2mm +  and 0.8mm +
persistent +
diverging;spreading +
spikelike +
2.5 cm25 mm <br />0.025 m <br /> (12.7 cm127 mm <br />0.127 m <br />) +
not developed +
ringlike +
white +  and yellow +
orbicular +  and elliptical planoconvex or flattened +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
sometimes longer +
Sour paspalum +
branched +  and solid +
15 cm150 mm <br />0.15 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Puerto Rico +, Tex. +, La. +, Utah +, Ala. +, Pacific Islands (Hawaii) +, Miss. +, Virgin Islands +  and Fla. +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
membranous +
inconspicuous +
2-3-veined +  and veinless +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
spreading +  and erect +
dry +  and fleshy +
pubescent +  and glabrous +
subsessile +  and shortly pedicellate +
paired +  and not solitary +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
1 +  and 60 +
unisexual +  and bisexual +
0.8mm +  and 1.1mm +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Paspalum conjugatum +
Paspalum +
species +
membranous +
stipitate +  and sessile +
rounded +  and acute +
2-3-veined +  and veinless +
stramineous +  and dark-brown +
smooth +  and slightly rugose +
smooth +  and slightly rugose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +