OregonFlora species comparison

palmate;

leaflets 3, elliptic to oblong or obovate, 8–35 × 5–15 mm, bases cuneate;

margins serrate proximally, obscurely denticulate distally;

veins thickened;

tips usually rounded or retuse, rarely acute;

surfaces glabrous;

petioles 10–130 mm;

petiolules ~0.5 mm;

stipules ovate-lanceolate, 10–15 mm;

margins entire, sometimes ciliate;

tips acuminate.

pinnate;

leaflets 3, broadly ovate, 10–30 × 10–15 mm, bases cuneate;

margins denticulate;

veins fine;

tips emarginate or retuse;

surfaces with spreading pustule-based hairs;

petioles 10–80 mm;

petiolules 1 mm;

stipules ovate, 10–20 mm;

margins wavy or toothed;

tips blunt or somewhat tapering distally.

axillary or terminal, 10–30-flowered; ovoid becoming subglobose, 7–22 × 5–20 mm;

involucres a narrow, membranous, dentate rim; ~0.5 mm;

bracteoles linear or cup-shaped; ? 1 mm.

terminal, 25–100-flowered, oblong, 20–70 × 10–25 mm;

involucres absent;

bracteoles absent.

25–120 mm.

20–100 mm.

erect but becoming reflexed, 0.5–6 mm.

straight; ~0.5 mm.

6–13 mm;

calyces broadly campanulate, 5–11 mm, glabrous;

veins 10;

tubes 1–5 mm;

lobes elliptic to linear, unequal;

margins hyaline, markedly ciliate, dentate or pectinate; sinuses narrow;

orifices open;

corollas 5–13 mm, white, pink, or purple;

banners broadly ovate, 6–13 × 4–7 mm;

tips rounded, apiculate.

10–15 mm;

calyces tubular-campanulate; ~10 mm, villous;

veins 10;

tubes 3–4 mm;

lobes spreading in fruit; equal; > tube;

orifices narrowly opening;

corollas 11–17 mm, usually scarlet to red, rarely pink or white;

banners oblong-elliptic; much > wings and keel petals, 10–16 × 2 mm;

tips acute.

longitudinally dehiscent; ovoid, 5–10 mm; < 2 × as long as calyces; short-stipitate.

transversely dehiscent; ovoid, 2.5–3 mm; leathery distally.

1–2; ovoid, 2.5–3 mm, brown, mottled; smooth.

1, ellipsoid, 2–2.5 mm; reddish; smooth; glossy.

=16.

=14.