Aegopogon

Humb. & Bonpl. ex Willd.
Treatment appears in FNA Volume 25. Treatment on page 273.
 TaxonIllustrator 
FNA25 P105B Aegopogon pg 275.jpegAegopogon tenellusKaren Klitz
Linda A. Vorobik

Plants annual or perennial; synoecious; tufted, cespitose, or sprawling. Culms 2-30 cm. Sheaths open; ligules membranous; blades flat. Inflorescences terminal, racemelike, 1-sided panicles, usually exceeding the upper leaves; branches 0.4-0.8 mm, not appressed to the rachis, with 3 spikelets, bases sharply curved, strigose, axes not extending beyond the distal spikelets; disarticulation at the base of the branches. Spikelets with 1 floret; lateral spikelets pedicellate, staminate or sterile, varying from rudimentary to as large as the central spikelet; central spikelets sessile or pedicellate, laterally compressed, bisexual. Glumes exceeded by the florets, cuneate, truncate to bilobed, 1-veined, awned from the midveins, sometimes also from the lateral lobes; lemmas 3-veined, central veins and sometimes the lateral-veins extended into awns, central awns always the longest; paleas almost as long as the lemmas, 2-keeled, 2-awned; lodicules 2; anthers 3; styles 2. Caryopses about twice as large as the embryos; hila punctate, x = 10.

Distribution

Calif., Ariz.

Discussion

Aegopogon is an American genus of four species that extends from the southwestern United States to Peru, Bolivia, and northern Argentina. One species is native in the Flora region.

Lower Taxa

"decumbent" is not a number.

... more about "Aegopogon"
Mary E. Barkworth +
Humb. & Bonpl. ex Willd. +
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 +
2 times as large as the embryos +
triangular +  and dome--shaped +
pedicellate +  and sessile +
sometimes longer +
membranous +
ascending +  and erect +
2 cm20 mm <br />0.02 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not woody +
Calif. +  and Ariz. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
cuneate +
truncate to bilobed +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
staminate +  and pedicellate +
not absent +
sometimes longer +
membranous +
inconspicuous +
concealed +  and prominent +
2 +  and 1 +
2-keeled +
dry +  and fleshy +
spikelike +
beetle1948a +
compressed +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Aegopogon +
Poaceae tribe Cynodonteae +
membranous +
7 +  and 13 +
perennial +  and annual +
plant +, sprawling +  and cespitose +
aquatic +  and terrestrial +