Uniola paniculata

L.
Common names: Sea oats
Treatment appears in FNA Volume 25. Treatment on page 24.

Plants perennial; rhizomatous. Culms to 2.5 m. Sheaths glabrate, mostly glabrous at maturity, with tufts of hairs near the collar; collars ciliate to pubescent; blades to 67 cm long, about 1 cm wide. Panicles 27-67 cm, open; branches drooping or nodding at maturity. Spikelets 15-30 (50) mm long, 6-16 mm wide, ovate-elliptical, with (3) 5-34 florets, the lower (3) 4-5 (8) sterile. Glumes 5-12 mm, acute; lemmas essentially glabrous, (7) 9 (13) -veined; paleas present only in the functional florets; anthers 4-6 mm. Caryopses 3-5 mm long, 1-1.5 mm wide. 2n = 40.

Distribution

Md., Miss., Tex., La., Del., Ala., N.C., S.C., Va., Ga., Fla.

Discussion

Uniola paniculata grows on the beaches and sand dunes of the Atlantic and Gulf coastal plains from Maryland to Veracruz, Mexico, and on the Florida Keys, the Bahama Islands, and Cuba. Seed production is generally poor; the reason is not known.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Uniola paniculata"
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
blunt +  and acute or mucronate +
H. Oliver Yates +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
0 cm0 mm <br />0 m <br /> (67 cm670 mm <br />0.67 m <br />) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
1 cm10 mm <br />0.01 m <br /> (?) +
nodding;drooping +
spikelike +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
ciliate +  and pubescent +
Sea oats +
0 cm0 mm <br />0 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
not woody +
Md. +, Miss. +, Tex. +, La. +, Del. +, Ala. +, N.C. +, S.C. +, Va. +, Ga. +  and Fla. +
0 +  and 1/2 +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
5 +  and 34 +
bisexual +  and sterile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
subequal +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
ciliate +, serrulate +  and winged +
not absent +
(7)9(13)-veined +
sometimes longer +
inconspicuous +
tapering +
serrate to serrulate +
concealed +  and prominent +
2 +  and 1 +
2-keeled +
27 cm270 mm <br />0.27 m <br /> (67 cm670 mm <br />0.67 m <br />) +
dry +  and fleshy +
spikelike +
glabrous +  and glabrate +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
compressed +, ovate-elliptical +  and ovate-triangular +
6mm +  and 16mm +
1 +  and 3 +
compound +  and simple +
Gramineae +
Uniola paniculata +
species +
membranous +
7 (?) +  and 13 (?) +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +