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.

palmate;

leaflets 3; ovate, elliptic, or rhombic, 35–95 × 23–50 mm, bases cuneate;

margins serrate to nearly entire;

veins obscure;

tips acute, rounded, or obtuse;

surfaces glabrous;

petioles 5–200 mm;

petiolules 1–1.5 mm;

stipules ovate, 15–45 mm;

margins entire, sometimes lobed;

tips acuminate.

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 or axillary, 20–70-flowered, globose or ellipsoidal, 25–40 × 20–25 mm;

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

involucres absent;

bracteoles minute, membranous; blunt or acute.

25–120 mm.

30–110 mm.

erect but becoming reflexed, 0.5–6 mm.

erect in bud, reflexed in flower and fruit; ~1 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.

10–14 mm;

calyces campanulate, gibbous, 4–5.5 mm, glabrous;

veins 10;

tubes 2–2.5 mm;

lobes linear-lanceolate, subequal;

orifices open;

corollas 11–12 mm, white to greenish white or greenish yellow;

banners elliptic-oblong, 11–12 × 4–5 mm;

tips obtuse.

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

longitudinally dehiscent, oblong or clavate, 4–5 mm; ? calyces.

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

1–3, angular; mitten-shaped, 2.5 mm; reddish black or brown; smooth or slightly roughened; dull.

=16.