Sclerolepis uniflora

(Walter) Britton

Prelim. Cat., 25. 1888.

Common names: Pink bogbutton one-flowered sclerolepis
IllustratedEndemic
Basionym: Ethulia uniflora Walter Fl. Carol., 195. 1788
Treatment appears in FNA Volume 21. Treatment on page 489. Mentioned on page 490.

Plants usually creeping and mat-forming; rhizomes relatively slender. Stems: submersed flexuous, to 60 cm; emersed ± ascending, 10–30(–45) cm. Leaf blades 7–23 × 0.3–2 mm. Peduncles 2–6 cm. Phyllaries 2–4 mm, margins minutely serrulate, faces glabrous. Corollas 2–3 mm (style branches conspicuously exserted). Cypselae 2–3.5 mm; pappi: scales indurate, broadly oblong, margins crenulate, apices obtuse, erose. 2n = 30.


Phenology: Flowering summer–fall.
Habitat: In still water, sandy or peaty shorelines of ponds, bogs, swamps, wet flatwoods, low savannas, wet depressions, ditches
Elevation: 0–100+ m

Distribution

V21-1233-distribution-map.gif

Ala., Del., Fla., Ga., Md., Mass., N.H., N.J., N.C., R.I., S.C., Va.

Discussion

Sclerolepis uniflora is uncommon north of North Carolina, being restricted to the Delmarva Peninsula in Delaware, Maryland, and Virginia; in New Jersey it occurs in the southern part of the pine barrens and in Cape May County. Two populations of S. uniflora are known in New England: one in southern New Hampshire, the other on the Massachusetts-Rhode Island state border.

The submersed, aquatic growth form of Sclerolepis uniflora has been rarely reported or collected. The submersed form is entirely vegetative; the stems are longer and the leaves more flaccid, elongated, and loosely arranged than in emergent plants. As water levels drop, the horizontal stems become anchored in exposed substrates and develop upright shoots of the terrestrial form, producing solitary, terminal heads of flowers.

Selected References

None.

Lower Taxa

None.
... more about "Sclerolepis uniflora"
Eric E. Lamont +
(Walter) Britton +
Ethulia uniflora +
Pink bogbutton +  and one-flowered sclerolepis +
Ala. +, Del. +, Fla. +, Ga. +, Md. +, Mass. +, N.H. +, N.J. +, N.C. +, R.I. +, S.C. +  and Va. +
0–100+ m +
In still water, sandy or peaty shorelines of ponds, bogs, swamps, wet flatwoods, low savannas, wet depressions, ditches +
Flowering summer–fall. +
Prelim. Cat., +
Illustrated +  and Endemic +
Compositae +
Sclerolepis uniflora +
Sclerolepis +
species +