OregonFlora species comparison

often decumbent, 1–4.5(7) dm.

not rosulate, 1–6(8) cm, 1- or 2-pinnatisect;

lobes entire or dentate, sometimes deeply lobed;

petioles 0.5–4(6) cm.

rosulate or not;

margins entire, dentate, or 1–3-pinnatisect.

similar to basal, 1.5–3.5(4.5) × 0.5–1.2 cm, bases not auriculate, petiolate to subsessile.

bases sometimes auriculate or amplexicaul, petiolate or sessile.

rachises glabrous or pubescent with straight cylindrical trichomes, fruiting pedicels divaricate to horizontal; terete; straight or slightly recurved, 1.4–2.5(4) mm, glabrous or sparsely pubescent adaxially.

bracts 0.

sepals caducous, 0.5–0.7(0.9) mm;

petals elliptic to linear, 0.4–0.5 × ~0.1 mm, white;

stamens 2; median;

styles absent or obsolete, included in apical notch.

radially symmetric;

sepals ovate or oblong;

lateral pair not saccate;

petals sometimes rudimentary or absent;

blades white, yellow, pink, or purple, obtuse or emarginate;

claws absent or distinct, nectar glands 4 or 6; distinct; median glands often present;

stamens 2 or 4 and equal in length;

lateral or median, or 6 and tetradynamous;

anthers ovate or oblong;

filaments unappendaged;

ovules 2 per ovary;

septa complete or perforated;

styles absent, obsolete, or distinct;

stigmas capitate; entire or rarely 2-lobed.

indehiscent, didymous, 1.3–1.7 × 2–2.5 mm; apical notch 0.2–0.4 mm deep;

valves thick, rugose, glabrous, strongly veined; wingless.

dehiscent, schizocarpic, or indehiscent silicles, angustiseptate or rarely inflated and terete, unsegmented, apically winged or wingless; replums rounded.

ovate, 1–1.2 × 0.7–0.8 mm;

cotyledons incumbent.

2(4) per fruit, 1(2) per locule, oblong or obovate; plump or flattened, usually mucilaginous when wetted, winged, margined, or wingless;

cotyledons incumbent, rarely accumbent or diplecolobal.

absent or simple.

=32.