Description
Key Characters:
Growth Form:
Perennial slender herbs.
Stems:
Stems slender, creeping, glabrous.
Roots:
Roots fibrous, slender.
Leaves:
Leaves simple.
Alternate.
Blades not peltate, suborbicular, 0.5–1 cm wide.
Surfaces glabrous.
Margins shallowly 7-lobed, the lobes crenate, the apical crenation slightly larger than the lateral one.
Palmately veined.
Petioles not sheathing; slender, 0.5–2 cm long, glabrous.
Stipules present.
Flowers:
Flowers in umbels, not proliferous, 3–10 flowered, globose; peduncles filiform, longer than the leaves, 5–20 mm long, glabrous. involucre and involucel absent.
Flowers bisexual (perfect).
Calyx teeth minute or absent.
Corolla of 5 petals, greenish white, yellowish white, or purplish, ovate.
Stamens 5, inserted on an epigynous disk.
Ovary inferior, 2-celled; ovules 1 per cells, anatropous; styles 2, usually swollen at base into a stylopodium. Styles usually longer than the conical to depressed stylopodium; carpophore absent.
Fruit:
Fruit consisting of 2 mericarps connate by their faces (commissure); compressed to flattened laterally; mericarps rounded or acute dorsally; glabrous to pubescent; with ribs 5 acute subequal; filiform; distinct or indistinct; companion cells present in the pericarp; but vittae absent. Mericarps separating at maturity and usually suspended from a persistent axis (carpophore); or carpophore absent; vittae in pericarp. fruit orbicular; 1–1.5 mm in diameter; sessile; glabrous.
Seeds 1 per mericarp; embryo small; endosperm cartilaginous. seed face plane to convex.
Ploidy:
2n = 24; 48; 64
Habitat:
Naturalized in lawns and other moist; disturbed sites.
Elevation Range: