OregonFlora species comparison

palmate;

leaflets 3, lanceolate or elliptic, 5–20 × 3–13 mm, bases cuneate;

margins serrate;

veins prominent;

tips acute, apiculate;

surfaces glabrous;

petioles 5–120 mm;

petiolules ~1 mm;

stipules ovate-lanceolate, 5–20 mm;

margins entire, sometimes lobed;

tips acute to acuminate.

palmate;

leaflets 3, obovate, oblanceolate, or elliptic, 8–30 × 5–7 mm, bases cuneate;

margins finely serrulate;

veins fine or thickened distally;

tips acute, mucronate, or retuse;

surfaces glabrous;

petioles 16–24 mm;

petiolules ~0.5 mm;

stipules lanceolate, 8–15 mm;

margins entire to slightly lacerate;

tips acuminate.

terminal or axillary, 15–30-flowered; ellipsoidal or conical, 15–20 × 10–30 mm;

rachises prolonged beyond flowers, undivided or forked, often bearing cluster of sterile flower buds distally;

involucres absent;

bracteoles minute, lanceolate.

mostly terminal, sometimes axillary, 30–50-flowered, subglobose, 12–18 × 15–20 mm;

involucres shallowly bowl-shaped, deeply lobed ? ? of length;

lobes irregular to bifurcate, 18–22 mm;

bracteoles linear, 1–2 mm.

20–130 mm, slightly twisted distally.

28–34 mm.

strongly reflexed; ~0.5 mm.

straight, 0.5–0.8 mm.

12–14 mm;

calyces campanulate, 3–3.5 mm, pink to purple, glabrous;

veins 10 (5 sometimes faint);

tubes 1.5–1.7 mm;

lobes triangular-subulate, subequal;

orifices open;

corollas 12–14 mm, pink to deep purple;

banners oblong, 12–14 × 4–5 mm;

tips rounded or retuse.

10–13 mm;

calyces tubular, 0.5–0.6 mm, glabrous;

veins 10;

tubes ~2 mm;

lobes ± equal, 3–4 mm; abaxial lobes > tube; other lobes often also as long;

orifices open;

corollas 9–12 mm, white to purple;

banners oblong, 0.7–1.2 × 2–3 mm;

tips retuse.

longitudinally dehiscent, obliquely ellipsoid; ~5 mm; ? calyces.

oblong, 2–4 mm.

1–2, flattened-ovoid, 2–3 mm, brown, often purple-mottled; smooth.

2–4, subglobose or mitten-shaped; ~1.5 mm, brown; smooth.

=16.