Luziola peruviana

J.F. Gmel.
Common names: Peruvian watergrass
Introduced
Treatment appears in FNA Volume 24. Treatment on page 55.
Please click on the illustration for a higher resolution version.
Illustrator: Sandy Long

Copyright: Utah State University

Plants stoloniferous, fully or mostly emergent. Culms 10-40 cm, suberect, branching, fully or mostly emergent. Leaves mostly basal or scattered along the culms, not conspicuously floating or streaming in the current; sheaths glabrous or ciliate; ligules to 5 mm, lanceolate, acuminate; blades 3-30 cm long, 0.5-4 mm wide, glabrous, sometimes scabridulous. Inflorescences panicles. Staminate panicles 1-3 cm, terminal, with 10-25 spikelets; staminate florets 3.5-8 mm, caducous; lemmas lanceolate, 5-veined; paleas similar, 3-veined; anthers 6, 2-5 mm. Pistillate panicles to 7 cm, arising from the lower to middle nodes of the culms, partially exserted from the sheaths, with 10-25 spikelets; branches filiform, spreading to reflexed; pistillate florets 2-2.5 mm, caducous; lemmas 7-14-veined, erose to acuminate or caudate; paleas similar to the lemmas, 5-10-veined; stigmas 2-3 mm. Achenes 1-1.3 mm, broadly ellipsoid to subglobose, smooth, lustrous. 2n = 24.

Discussion

Luziola peruviana has been found at scattered locations from Texas to Florida. It is native to the Caribbean, Central America, and South America, and grows in wet places and shallow water along streams and lakes.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Luziola peruviana"
broadly ellipsoid +  and subglobose +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Edward E. Terrell +
J.F. Gmel. +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
3 cm30 mm <br />0.03 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not evident +
scabridulous +
linear +  and lanceolate or narrowly elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
spreading;reflexed +
filiform +
Peruvian watergrass +
20 cm200 mm <br />0.2 m <br /> (500 cm5,000 mm <br />5 m <br />) +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Fla. +, Tex. +  and La. +
0 +  and 1/3 +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +, fertile +, sexual +, unisexual +  and bisexual +
round +  and compressed +
2mm +  and 2.5mm +
cylindrical +, oblong +  and ovoid +
subtending +
reduced +
uncinate +
staminate +  and pistillate +
solid +  and hollow +
aerenchymatous +
streaming in the current +  and floating +
7-14-veined +  and 5-veined +
caudate +, acuminate +  and lanceolate +
subequal +
membranous +
acuminate +  and lanceolate +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
scarious +  and membranous +
annular +
inconspicuous +
fleshy +  and membranous +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
5-10-veined +  and 3-veined +
well-developed +
lanceolate +  and ovate +
subequal +
membranous +
pistillate +  and staminate +
0 cm0 mm <br />0 m <br /> (7 cm70 mm <br />0.07 m <br />) +
striate +  and smooth +
crustaceous +
not prolonged +
ovoid +  and subglobose +
ciliate +  and glabrous +
inflated +  and not inflated +
Introduced +
10 +  and 25 +
laterally compressed +  and subterete +
1 +  and 3 +
simple +  and compound +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2 (?) +  and 3 (?) +
triangular +  and dome--shaped +
Gramineae +
Luziola peruviana +
species +
membranous +