Enteropogon dolichostachyus

(Lag.) Keng ex Lazarides
Treatment appears in FNA Volume 25. Treatment on page 225.
Revision as of 03:44, 30 July 2020 by imported>Volume Importer
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Plants perennial; cespitose, neither stoloniferous nor rhizomatous. Culms 75-90 cm, branched, ascending or scrambling, sometimes rooting at the lower nodes. Sheaths glabrous or pubescent, sometimes hispid on the margins, distal margin hairs stiff, 2-4 mm; ligules about 0.3 mm; blades 10-17 (40) cm long, 2.8-7 mm wide, usually flat, tapering to the apices. Panicles with (1) 2-4 (7) branches in a single digitate cluster; branches 7-15 (25) cm, divergent to drooping, spikelet-bearing to the base. Spikelets with 2 florets. Glumes hyaline to thinly membranous, lanceolate, scabrous or smooth, long-acuminate; lower glumes 1.5-3 mm; upper glumes 4-6.5 mm; lower lemmas 3.5-5 mm, scabrous distally, notched, awned, awns 7-15 mm; distal florets about 0.8-1.8 mm, sterile, attenuate into the rachilla, awned, awns 3-7 mm. Caryopses 2.5-3 mm; embryos about 1 mm. 2n= 20, 40, 60.

Discussion

Enteropogon dolichostachyus grows from Afghanistan through southeast Asia to Australia. It has been collected from near a woolen mill in South Carolina, but it is not known to be established in the Flora region.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

60 +, 40 +  and 20 +
1 +  and 3 +
bidentate +  and acute +
Mary E. Barkworth +
(Lag.) Keng ex Lazarides +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
10 cm100 mm <br />0.1 m <br /> (17 cm170 mm <br />0.17 m <br />) +
pubescent +  and glabrous +
tapering +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
non-disarticulating +
25 cm250 mm <br />0.25 m <br /> (?) +
spikelike +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
rooting +  and branched +
75 cm750 mm <br />0.75 m <br /> (90 cm900 mm <br />0.9 m <br />) +
not woody +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
N.C. +, Ariz. +, Ala. +  and Tex. +
1/4 +  and 1/31/2 +
not waisted +
1 cm10 mm <br />0.01 m <br /> (?) +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
long-acuminate +  and lanceolate +
unequal +
membranous +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
5-veined +, 7-13-veined +  and 1-3-veined +
sometimes longer +
0.3 cm3 mm <br />0.003 m <br /> (?) +
membranous +
inconspicuous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
concealed +  and prominent +
2 +  and 1 +
bidentate +  and 2-keeled +
dry +  and fleshy +
spikelike +
hispid +, pubescent +  and glabrous +
divergent +  and imbricate +
1 +  and 60 +
compressed +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Enteropogon dolichostachyus +
Enteropogon +
species +
membranous +
awned +  and acute +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
7 (?) +  and 13 (?) +
rhizomatous +  and stoloniferous +
plant +  and cespitose +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +