Anthephora hermaphrodita

(L.) Kuntze
Common names: Oldfield grass
Introduced
Treatment appears in FNA Volume 25. Treatment on page 535.

Plants annual. Culms erect or decumbent, sometimes rooting at the lower nodes, branching from the base. Sheaths densely to sparsely pubescent, hairs papillose-based; ligules 1.5-3 mm, brownish, entire or dentate, not ciliate; blades 4-17 cm long, 2-8 mm wide, flat, pubescent on both surfaces. Panicles 4-12 cm long, 5-8 mm wide, with 20-60 fascicles; fascicles 5-7.5 mm; bracts 4-7 mm, scabrous. Fertile spikelets 3.5-4.5 mm, ovoid, scabrid between the veins, acute; upper lemmas 3.7-4 mm, glabrous, margins overlapping the edges of the palea. Caryopses about 2 mm. 2n = 18.

Distribution

Puerto Rico, Virgin Islands, Pacific Islands (Hawaii), Fla.

Discussion

Anthephora hermaphrodita is a weedy species, native to maritime beaches, lowland pastures, and disturbed areas from Mexico and the Caribbean Islands to Peru and Brazil. It is now established in Alachua County, Florida, having escaped from plantings at the Experiment Station of the University of Florida, Gainesville.

Selected References

None.

Lower Taxa

None.

"thick" is not a number."decumbent" is not a number."elongated" is not a number.

... more about "Anthephora hermaphrodita"
anatomy +  and kranz +
Mary E. Barkworth +
(L.) Kuntze +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
4 cm40 mm <br />0.04 m <br /> (17 cm170 mm <br />0.17 m <br />) +
usually linear +  and lanceolate occasionally ovate +
2mm;8mm +
1 (?) +  and 2 (?) +
narrowly elliptic +  and ovate +
reduced +
coriaceous +  and rigid +
spikelike +
reduced +
not developed +
ellipsoidal +
2 cm20 mm <br />0.02 m <br /> (?) +
sometimes longer +
Oldfield grass +
branching +  and rooting +
decumbent +  and erect +
15 cm150 mm <br />0.15 m <br /> (50 cm500 mm <br />0.5 m <br />) +
not woody +
Puerto Rico +, Virgin Islands +, Pacific Islands (Hawaii) +  and Fla. +
overlapping +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
papillose-based +
uncinate +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
dentate +  and entire +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
4cm +  and 12cm +
subterranean +
spikelike +
0.5 cm5 mm <br />0.005 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
dry +  and fleshy +
Introduced +
in triplets +  and paired +
2 +  and 11 +
acute +  and ovoid +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
1 (?) +  and 3 (?) +
fused +  and free +
2 (?) +  and 3 (?) +
dome--shaped +  and triangular +
Gramineae +
Anthephora hermaphrodita +
Anthephora +
species +
membranous +
sterile +  and bisexual +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
cartilaginous +, coriaceous +  and indurate +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +