Sporobolus compositus var. drummondii

(Trin.) Kartesz & Gandhi
Synonyms: Sporobolus asper var. pilosus Sporobolus asper var. drummondii
Treatment appears in FNA Volume 25. Treatment on page 122.

Plants not rhizomatous. Culms slender, 1-2 (2.5) mm thick at the base. Uppermost sheaths 0.8-2.5 mm wide. Panicles with 16-36 spikelets per cm2 when pressed. Fruits 1.1-1.7 mm.

Distribution

Kans., Okla., Miss., Tex., La., Mo., Ala., Iowa, Tenn., Ark., Ga., Ky.

Discussion

Sporobolus compositus var. drummondii is most abundant in Kansas, Oklahoma, and Texas.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

108 +, 88 +  and 54 +
pilose +  and glabrous +
quadrangular +, fusiform +, obovoid +  and ellipsoid +
yellow +  and orangish +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Paul M. Peterson +, Stephan L. Hatch +  and Alan S. Weakley +
(Trin.) Kartesz & Gandhi +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
5 cm50 mm <br />0.05 m <br /> (70 cm700 mm <br />0.7 m <br />) +
pubescent +  and glabrous +
0.15 cm1.5 mm <br />0.0015 m <br /> (1 cm10 mm <br />0.01 m <br />) +
spikelike +
triangular +  and dome--shaped +
sometimes longer +
membranous +
slender +
30 cm300 mm <br />0.3 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
not woody +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Kans. +, Okla. +, Miss. +, Tex. +, La. +, Mo. +, Ala. +, Iowa +, Tenn. +, Ark. +, Ga. +  and Ky. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
reddish-brown +
flattened +  and ellipsoid +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
shorter or longer +
subtending +
lanceolate +
subequal +
membranous +  and chartaceous +
uncinate +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
not absent +
3-veined +, 2-veined +  and smooth +
acute +  and obtuse +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +  and chartaceous +
sometimes longer +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
inconspicuous +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
concealed +  and prominent +
2 +  and 1 +
ovate +  and lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
5cm +  and 30cm +
spikelike +
0.4 cm4 mm <br />0.004 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
scabridulous +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
mucilaginous +
adherent +  and free +
0.4 cm4 mm <br />0.004 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spikelike +
stramineous +  and purplish-tinged +
16 +  and 36 +
rounded +  and laterally compressed +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
Sporobolus asper var. pilosus +  and Sporobolus asper var. drummondii +
Sporobolus compositus var. drummondii +
Sporobolus compositus +
variety +
membranous +
slightly shorter or longer +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
quadrangular +, fusiform +, obovoid +  and ellipsoid +
7 (?) +  and 13 (?) +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +