Elodea bifoliata
Research Studies of the State College of Washington 30(2): 23. 1962.
Leaves sometimes in 2s, spreading, linear to narrowly elliptic, 4.7–24.8 × (0.8–) 1.8–4.3 mm, flat. Inflorescences: staminate spathes cylindric, 10.2–42 mm; peduncles abscissing following anthesis; pistillate spathes linear, 9–67 mm. Flowers unisexual; staminate flowers: stamens 7–9; pedicels remaining briefly following anthesis; inner 3 filaments connate proximally, forming column; anthers 3–4.5 mm; pollen in monads; pistillate flowers: styles 2.3–3 mm. Seeds ellipsoid, 2.8–3 mm, densely covered with long hairs.
Phenology: Flowering summer–fall.
Habitat: Waters of rivers and reservoirs
Elevation: 100–2500 m
Distribution
Alta., B.C., Man., Sask., Colo., Idaho, Kans., Minn., Mont., N.Mex., N.Dak., Oreg., S.Dak., Utah, Wyo.
Discussion
Selected References
None.
Lower Taxa
None.
"connate" is not a number.
... more about "Elodea bifoliata"
oval +
acute +
erect +
uniform +
abaxial +
linear;linear-lanceolate +
opposite +
2-fid +
connate +
inner +
elongate +
inner +
unisexual +
berrylike +
dehiscing +
ovoid;lance-ellipsoid +
long +
sessile +
axillary +
sessile +
submersed +
spreading +
cauline +
2-6[-16]-carpellate +
parietal +
inferior +
absent +
0;1 +
anthesis +
abscissing +
anthesis +
free +
epigynous +
differentiated +
white +
absent +
spheric +
Research Studies of the State College of Washington +
1962 +
absent +
opposite +
bisexual +
echinate +
glabrous +
papillose +
many +
ellipsoid +
tubular +
cylindric +
Endemic +
creeping +
erect +
evident +
elongate +
absent +
submersed +
absent +
not 2-fid +
Elodea bifoliata +
Elodea +
species +
absent +
perennial +
submersed +