Flora of North America species comparison

erect to reclining, 1-3 mm thick, hirsute or sometimes glabrous.

unarmed.

blade undivided or more commonly divided or compound, base cordate, sometimes truncate or cuneate, margins entire, toothed, or incised;

venation pinnate or palmate.

3-parted, ultimate segments narrowly elliptic, margins entire or dentate.

terminal or axillary, racemes, cymes, umbels, panicles, or spikes, or flowers solitary, flowers pedicellate or sessile.

sepals 5, 4-6 mm;

petals 5-6, 6-10 × 3-5 mm.

bisexual, sometimes unisexual, inconspicuous or showy, radially or bilaterally symmetric;

sepaloid bracteoles absent;

perianth hypogynous;

sepals usually imbricate, 3-6(-20), distinct, often petaloid and colored, occasionally spurred;

petals 0-26, distinct (connate in Consolida), plane, cup-shaped, funnel-shaped, or spurred, conspicuous or greatly reduced;

nectary usually present, rarely absent;

stamens 5-many, distinct;

anthers dehiscing longitudinally;

staminodes absent (except in Aquilegia and Clematis);

pistils 1-many;

styles present or absent, often persistent in fruit as beak.

achenes, follicles, or rarely utricles, capsules, or berries, often aggregated into globose to cylindric heads.

3.4-4.8 × 2.6-3.2 mm, glabrous;

beak lanceolate, straight, 1.6-2.2 mm.

1-many per ovary, never stalked, not arillate;

endosperm abundant;

embryo usually small.