OregonFlora species comparison

pinnate;

leaflets 3, obovate to oblong, elliptic or lanceolate, 5–40 × 5–15 mm, bases cuneate;

margins spinulose-denticulate;

veins prominent, thickened;

tips apiculate;

surfaces glabrous;

petioles 5–100 mm;

petiolules ~1 mm;

stipules linear-lanceolate, 10–35 mm;

margins entire;

tips subulate or setaceous.

terminal or axillary, 50–100+-flowered, globose; ovoid, or oblong, 30–60 × 20–35 mm;

involucres absent;

bracteoles lanceolate, 6–7 mm, nearly as long as calyces, acuminate.

10–120 mm.

absent.

12–16 mm;

calyces urceolate; symmetrical, inflated in fruit, 6–10 mm, glabrous;

veins 20–36, connected transversely in fruit;

tubes 3–5 mm;

lobes reflexed, subulate, subequal; as long as tube;

orifices constricted;

corollas 12–15 mm, white becoming pink;

banners ovate, broadly clawed, 12–15 × 2–4 mm, striate;

tips acute-acuminate.

ellipsoid, 2.5–3.5 mm; < calyces.

2–3; ovoid, 1–1.5 mm, brown, roughened.

=16.