Cypselea humifusa
Ann. Mus. Natl. Hist. Nat. 7: 219, plate 121. 1806.
IntroducedIllustrated
Treatment appears in FNA Volume 4. Treatment on page 82.
Mats leafy, to 10 cm wide. Stems diffusely branched from base. Leaves: unequal pairs alternating, usually subtending fascicle of leaves; petiole slender, ± equaling blade length; blade apex obtuse; larger blade of pair 0.5 (–1.2) cm, smaller blade 0.2 (–0.6) mm. Inflorescences: flowers in axils of smaller leaves (bracts) between short lateral stem and main-stem; bracteoles 2; pedicel 2 mm. Flowers: calyx lobes erect, ovate, to 1.5 mm, margins scarious, fringed, apex obtuse. Capsules subglobose, membranous. Seeds redbrown, ± round-reniform or subtriangular, asymmetric, 0.3 mm, smooth.
Phenology: Flowering summer–fall.
Habitat: Moist, seasonally flooded, or seasonally dry, open mud or sand flats, banks, shores, and margins of ponds, lakes, canals, and rivers
Elevation: 0-1000 m
Distribution
Introduced; Ariz., Calif., Fla., La., Miss., Nev., West Indies, South America
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Cypselea humifusa"
obtuse +
persistent +
equaling +
foliaceous +
absent +
absent +
fringed +
scarious +
erect +
ovate +
unequal +
equal +
campanulate +
subglobose +
membranous +
coiled +
inconspicuous +
bisexual +
basal +
nutlike +
circumscissile +
separate +
Moist, seasonally flooded, or seasonally dry, open mud or sand flats, banks, shores, and margins of ponds, lakes, canals, and rivers +
absent +
Present +
axillary +
true +
alternating +
cauline +
fringed +
scarious +
leafy +
absent +
1-loculed +
axile +
parietal +
superior +
absent +
2 cm20 mm <br />0.02 m <br /> (?) +
2-4-seriate +
absent +
0;250 +
slender +
2-carpellate +
Ann. Mus. Natl. Hist. Nat. +
1806 +
tuberous +
fibrous +
arillate +
asymmetric +
redbrown +
150 +
papillose +
0.3 cm3 mm <br />0.003 m <br /> (?) +
alternating +
petaloid +
absent +
branched +
sheathing +
mat-forming +
prostrate +
underground +
erect +
attached +
absent +
fringed +
scarious +
absent +
1;25 +
Cypselea humifusa +
Cypselea +
species +
annual +
glabrous +
papillate +
succulent +