OregonFlora species comparison

angled or ridged.

leaflets 8–14; ovate-oblong to linear, 15–30 × 5–15 mm;

surfaces abaxially sparsely pubescent, adaxially glabrous;

rachises 3–8 cm;

stipules foliose, with abaxial nectariferous patch.

even-pinnate;

leaflets 2–20, alternate or opposite;

rachises usually terminated in a simple or branched, sometimes mucronate tendril;

stipules inconspicuous or foliose, semisagittate or ligulate, with or without nectariferous patch.

1–4-flowered; < subtending leaves.

erect or lax, 1–many-flowered axillary racemes;

bracts 0.

10–30 mm;

calyx bases symmetrical;

lobes subequal; ? tubes;

corollas violet-purple, lavender, or whitish, glabrous;

banners abruptly contracted into narrow claws;

styles abaxially compressed.

chasmogamous or cleistogamous;

calyx bases sometimes gibbous;

tubes symmetrically or obliquely campanulate, with 5 equal or unequal lobes; when unequal dorsal lobes usually short, triangular;

lateral lobes longer and linear;

corollas white, pink or lavender to rose, blue to purple, or yellow;

wings and keels often lighter than banners;

banner claws convolute around other petal claws;

banner blades usually folded perpendicular to axis of flower;

wings adherent to keels with a ball and socket mechanism, usually > keels;

keels incurved, attenuate; lower and distal margins fused;

stamens diadelphous;

anthers uniform;

ovaries glabrous or pubescent;

styles terete, flattened abaxially or adaxially, evenly pubescent just below stigma and/or abaxially tufted.

25–60 × 3–11 mm; reddish brown to black, glabrous or pubescent, sessile.

dehiscent; terete or flattened, elliptic to linear, glabrous or pubescent;

margins usually obscure, splitting along both margins;

valves twisted after dehiscence, sessile or stipitate.

3–15; spherical, sometimes angular, usually brown or black.