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, obcordate, or orbiculate, 6–40 × 4–25 mm, often with light markings, bases cuneate;

margins serrulate distally;

veins moderately prominent;

tips rounded, emarginate, or retuse;

surfaces glabrous;

petioles 50–200 mm;

petiolules ? 1 mm;

stipules lanceolate, 9–13 mm;

margins entire;

tips short-subulate.

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.

axillary, 20–40+-flowered, globose, 15–35 × 15–35 mm;

involucres absent;

bracteoles lanceolate, 1–2 mm, white.

25–120 mm.

erect from prostrate stems, 15–300 mm.

erect but becoming reflexed, 0.5–6 mm.

elongate, strongly reflexed in fruit, 3–5 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.

8–13 mm;

calyces campanulate, 3–5 mm, glabrous;

veins 6–10;

tubes 1.5–2.5 mm;

lobes unequal to subequal; adaxial triangular-lanceolate; < tube;

orifices open;

corollas 4–12 mm, 1–2 × calyces, white, often becoming pinkish in age;

banners ovate-lanceolate or oblong, 4–12 × 1–4 mm;

tips rounded.

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

longitudinally dehiscent, linear-oblong, 4–5 mm; ? calyces.

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

3–4; ovoid-reniform, 1 mm, yellow; reddish brown, or light brown; smooth; glossy.

=16.

=16, 28, 32, 48, 64.