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, obovate to oblong, 8–25 × 5–13 mm, bases cuneate;

margins denticulate distally;

veins prominent, closely-spaced;

tips rounded;

surfaces densely spreading-hairy;

petioles 5–50 mm;

petiolules ~0.5 mm;

stipules lanceolate-ovate, 8–18 mm;

margins entire;

tips long-setaceous.

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 on branches, 10–50-flowered, globose or ovoid, 15–25 × 15–25 mm, disarticulating at maturity into fruiting calyces;

involucres enlarged stipules;

bracteoles absent.

25–120 mm.

absent.

erect but becoming reflexed, 0.5–6 mm.

absent.

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.

10–17 mm;

calyces campanulate, 7–11 mm, pilose;

veins 20;

tubes 2–5 mm;

lobes subequal; abaxial slightly longer;

orifices open, pilose;

corollas 10–14 mm, pink to purplish red;

banners lanceolate, 10–14 × 1–2 mm;

tips acute-acuminate.

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

transversely dehiscent; ovoid, 2–3 mm; ? calyces; leathery distally.

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

1, globose-ellipsoid, 1.5–2 mm, tan or brown; smooth; glossy.

=16.

=10.