Distichlis spicata

(L.) Greene
Common names: Saltgrass
Treatment appears in FNA Volume 25. Treatment on page 25.

Plants rhizomatous and sometimes stoloniferous. Culms 10-60 cm, usually erect, sometimes decumbent or prostrate. Blades of upper leaves 1-8 (20) cm, rigid and divaricate to lax and ascending, usually equaling or exceeding the pistillate panicles, varying with respect to the staminate panicles. Pistillate panicles 1-7 cm, often congested, with 2-20 spikelets. Pistillate spikelets 5-20 mm long, 4-7 mm wide, with 5-20 florets; lower glumes 2-3 mm; upper glumes 3-4 mm; lemmas 3.5-6 mm; paleas with serrate keels. Caryopses 2-5 mm, tapered or truncate. Staminate panicles and spikelets similar to the pistillate panicles and spikelets, but the lemmas somewhat thinner in texture and the paleas not bowed-out. Anthers 3-4 mm. 2n = 40.

Distribution

Conn., N.J., N.Y., Wash., Del., Wis., Ariz., N.Mex., Pacific Islands (Hawaii), Fla., Wyo., N.H., Tex., La., Alta., B.C., Man., N.B., N.S., N.W.T., Ont., P.E.I., Sask., N.C., S.C., Pa., Ala., Miss., Nev., Va., Colo., Calif., Kans., N.Dak., Nebr., Okla., S.Dak., Ill., Ga., Iowa, Idaho, Maine, Md., Mass., Ohio, Utah, Mo., Minn., R.I., Mont., Oreg.

Discussion

Distichlis spicata grows in saline soils of the Western Hemisphere and Australia. Numerous infraspecific taxa have been recognized in the past, but none appears to be justified. Recent North American accounts of Distichlis have usually recognized plants from maritime coasts as distinct from those growing inland, supposedly having more congested inflorescences, but the range of variation is similar in the two habitats.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Distichlis spicata"
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Mary E. Barkworth +
(L.) Greene +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
divaricate +  and lax +
20 cm200 mm <br />0.2 m <br /> (?) +
pubescent +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
varying +, exceeding the pistillate panicles +  and equaling +
spikelike +
truncate +  and tapered +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Saltgrass +
prostrate +  and decumbent +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
not woody +
Conn. +, N.J. +, N.Y. +, Wash. +, Del. +, Wis. +, Ariz. +, N.Mex. +, Pacific Islands (Hawaii) +, Fla. +, Wyo. +, N.H. +, Tex. +, La. +, Alta. +, B.C. +, Man. +, N.B. +, N.S. +, N.W.T. +, Ont. +, P.E.I. +, Sask. +, N.C. +, S.C. +, Pa. +, Ala. +, Miss. +, Nev. +, Va. +, Colo. +, Calif. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ill. +, Ga. +, Iowa +, Idaho +, Maine +, Md. +, Mass. +, Ohio +, Utah +, Mo. +, Minn. +, R.I. +, Mont. +  and Oreg. +
not waisted +
capillary +
not disarticulating +  and staminate +
sometimes longer +
5 +  and 20 +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
Serrate (?) +  and Toothed (?) +
not absent +
pistillate +, 9-11-veined +  and staminate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
thinner +
sometimes longer +
1 cm10 mm <br />0.01 m <br /> (?) +
membranous +
inconspicuous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
concealed +  and prominent +
2 +  and 1 +
2-keeled +
pistillate +  and staminate +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
dry +  and fleshy +
spikelike +
scale-like +
staminate +  and pistillate +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 +  and 20 +
compressed +
4mm +  and 7mm +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Distichlis spicata +
Distichlis +
species +
membranous +
ascending +  and spreading +
exceeding the pistillate panicles +  and equaling +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
7 +  and 13 +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +
bisexual +  and unisexual +