Aristida longespica var. geniculata

(Raf.) Fernald
Common names: Kearney's threeawn
Endemic
Synonyms: Aristida necopina Aristida intermedia
Treatment appears in FNA Volume 25. Treatment on page 330.

Glumes 4-11 mm; lemmas 3.5-10 mm; central awns (8) 12-27 mm, erect to reflexed; lateral awns (1) 6-18 mm, erect to horizontal; anthers 1 or 3.

Distribution

Conn., Mass., N.H., N.J., N.Y., Ala., Ga., Md., N.C., S.C., Tenn., Va., W.Va., Wis., Fla., Tex., La., Pa., R.I., Colo., Ont., Ark., Vt., Ill., Ind., Iowa, S.Dak., Kans., Nebr., Okla., Ohio, Mo., Mich., Miss., Ky.

Discussion

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

3 +  and 1 +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
narrowed +
Kelly W. Allred +
(Raf.) Fernald +
not disarticulating +
1 (?) +  and 3 (?) +
curving +
erect +  and reflexed +
not evident +
terete +
unequal +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
keeled +  and rounded +
coiled +, disarticulating +  and twisted +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
straight +
light green +
5 cm50 mm <br />0.05 m <br /> (14 cm140 mm <br />0.14 m <br />) +
flat +  and loosely involute +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
spikelike +
well-developed +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
non-radiate +  and radiate +
erect +  and reflexed +
1.2 cm12 mm <br />0.012 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
Kearney's threeawn +
much-branched +
erect +  and spreading +
15 cm150 mm <br />0.15 m <br /> (65 cm650 mm <br />0.65 m <br />) +
not woody +
Conn. +, Mass. +, N.H. +, N.J. +, N.Y. +, Ala. +, Ga. +, Md. +, N.C. +, S.C. +, Tenn. +, Va. +, W.Va. +, Wis. +, Fla. +, Tex. +, La. +, Pa. +, R.I. +, Colo. +, Ont. +, Ark. +, Vt. +, Ill. +, Ind. +, Iowa +, S.Dak. +, Kans. +, Nebr. +, Okla. +, Ohio +, Mo. +, Mich. +, Miss. +  and Ky. +
large +  and small +
thread-like +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
subtending +
acuminate +
subequal +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
straight +
pilose +  and glabrous +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
racemose +  and paniculate +
6 cm60 mm <br />0.06 m <br /> (?) +  and 22 cm220 mm <br />0.22 m <br /> (?) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
erect +  and horizontal +
0.6 cm6 mm <br />0.006 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
mottled +, banded +, gray +  and dark purplish-brown +
glabrous +  and scabrous-hispid +
scabridulous +
fusiform +
0.35 cm3.5 mm <br />0.0035 m <br /> (1 cm10 mm <br />0.01 m <br />) +
coriaceous +
indistinguishable +
0.5 cm5 mm <br />0.005 m <br /> (?) +
inconspicuous +
concealed +  and prominent +
with straight hairs +  and glabrous +
2 +  and 1 +
concealing +
0 +  and 1/2 +
dry +  and fleshy +
divaricate +  and divergent +
spreading;appressed;erect +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
not prolonged +
not disintegrating +
1 (?) +  and Anatomy (?) +
widely spaced +  and crowded +
1 +  and 3 +
triangular +  and dome--shaped +
2 (?) +  and 3 (?) +
Aristida necopina +  and Aristida intermedia +
Aristida longespica var. geniculata +
Aristida longespica +
variety +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
membranous +
aquatic +  and terrestrial +