Flora of North America species comparison

1(–3) from base, mostly erect, 10–25 cm, herbaceous, sparsely to moderately villous, hairs nonseptate and usually septate.

cauline;

stipules rudimentary;

petiole (2–)3–5(–6) cm, hairs septate and nonseptate;

leaflets 3, green, obcordate, (8–)10–16(–20) mm, lobed 1/5–1/3 length, margins green, surfaces glabrous to sparsely strigose, oxalate deposits absent.

alternate or whorled, usually palmately or pinnately compound, sometimes 1-foliolate;

stipules usually present, rarely apparently absent;

petiole present;

blade margins entire;

venation pinnate or subpalmate.

umbelliform cymes, 1–3-flowered;

peduncles (2–)4–8(–10) cm.

terminal or axillary, cymes or racemes, or flowers solitary.

tristylous, above level of leaves;

sepal apices without tubercles;

petals yellow, 12–20 mm.

bisexual, perianth and androecium hypogynous;

hypanthium absent;

sepals 5, distinct or slightly connate basally;

petals 5, distinct or slightly connate basally;

nectary present;

stamens 10 in 2 whorls, connate basally (monadelphous), free;

anthers dehiscing by longitudinal slits;

pistil 1, 5-carpellate, ovary superior, 5-locular;

placentation axile;

ovules (1–)3–8(–10) per locule, anatropous;

styles 5, distinct;

stigmas 5.

capsules [berries], dehiscence loculicidal, often elastically.

oblong-cylindric, 10–15 mm, densely puberulent.

1–10 per locule.

= 24.