Uniola

L.
Treatment appears in FNA Volume 25. Treatment on page 22.
 TaxonIllustrator 
FNA25 P03B Uniola pg 23.jpegUniola paniculataKaren Klitz
Linda A. Vorobik

Plants perennial; rhizomatous or stoloniferous. Culms to 2.5 m, erect, glabrous, unbranched. Ligules of hairs; blades flat, becoming involute when dry, margins scabrous, tapering to an attenuate apex. Inflorescences terminal, simple panicles, exceeding the leaves; disarticulation below the glumes. Spikelets 8-50 mm long, 6-16 mm wide, ovate-elliptical to ovate-triangular, strongly laterally compressed, with 3-34 florets, lowest 2-8 florets sterile, remaining floret (s) bisexual. Glumes subequal, shorter than the adjacent lemmas, midveins keeled, serrate to serrulate, apices unawned; lemmas 3-9-veined, midveins keeled, serrate to serrulate, apices somewhat blunt to acute or mucronate, unawned; paleas, if present, from slightly shorter than to exceeding the lemmas, 2-keeled, keels winged, serrulate or ciliate; anthers 3; ovary glabrous; styles 1, with 2 style-branches. Caryopses linear; embryos less than 1/2 as long as the caryopses. x = 10.

Distribution

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

Discussion

Uniola has two species, both of which grow on coastal sand dunes. There is one species native to the Flora region; the second, U. pittieri Hack., extends from northern Mexico to Ecuador, primarily along the Pacific coast. The genus used to be interpreted as including Chasmanthium, a genus that is now included in the Centothecoideae.

Lower Taxa

"decumbent" is not a number.

... more about "Uniola"
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 +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
spikelike +
triangular +  and dome--shaped +
sometimes longer +
membranous +
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 +
3 +  and 34 +
bisexual +  and sterile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
subequal +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
ciliate +, serrulate +  and winged +
not absent +
sometimes longer +
inconspicuous +
tapering +
serrate to serrulate +
concealed +  and prominent +
2 +  and 1 +
2-keeled +
dry +  and fleshy +
spikelike +
group2001a +, yates1966b +, yates1966d +  and yates1966e +
0.8 cm8 mm <br />0.008 m <br /> (5 cm50 mm <br />0.05 m <br />) +
compressed +, ovate-elliptical +  and ovate-triangular +
6mm +  and 16mm +
1 +  and 3 +
compound +  and simple +
Gramineae +
Poaceae tribe Cynodonteae +
membranous +
7 (?) +  and 13 (?) +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +