Flora of North America species comparison

1 or more, mostly 5-10 dm.

10-50, prostrate-ascending, 2-3.5 dm.

ca. 3, compound, 10 cm or more;

blade with 3 orders of leaflets and lobes; ultimate lobes broadly elliptic or less commonly ovate to obovate with rounded apex, sometimes narrowly elliptic with acute apex, 1-8 × 0.5-4 cm, minutely apiculate.

compound;

blade with 3 orders of leaflets and lobes; ultimate lobes elliptic, 1.5 times or more longer than wide, margins incised, apex subapiculate.

axillary or terminal, racemose or paniculate, 15-35-flowered on primary axis;

bracts inconspicuous, proximal bracts narrowly elliptic, distal linear and much reduced.

racemose, 10-20(-30)-flowered, primary racemes shorter than to slightly exceeding leaves, secondary racemes fewer flowered;

bracts elliptic to linear, 4-10 × 1-2 mm, rarely larger, margins often denticulate toward apex, distal bracts usually much reduced.

erect;

pedicel 2-5 mm;

sepals caducous, ovate to broadly lanceolate, 1-2 mm, margins lacerate or dentate;

petals light to deep pink; spurred petal usually somewhat curved, 20-25 mm, spur lanceoloid, 14-20 mm, crest well developed, usually exceeding petal apices, marginal wing absent; unspurred outer petal boat-shaped, 12-15 mm;

inner petals not tipped deep red or purple, usually 9-11 mm, blade much wider at apex, claw slender, equaling blade in length; nectariferous spur 1/2-2/3 length of petal spur, bent or hooked at apex;

style ca. 3 mm;

stigma roughly triangular, with 2 apical and 2 lateral papillae.

at first erect, later reflexed;

pedicel 5-10 mm;

sepals ovate to attenuate-ovate, to 1-3 mm, margins often sinuate or dentate;

petals pale to bright yellow; spurred petal 13-16 mm, spur straight or slightly incurved, 4-5 mm, apex subglobose, crest low and incised or absent, marginal wing moderately to well developed, unspurred outer petal 9-11 mm, crest same as that of spurred petal;

inner petals oblanceolate, 8-10 mm, blade wider than claw and more prominently winged toward apex, claw 3.5-4.5 mm; nectariferous spur 2-3 mm;

style ca. 3 mm;

stigma 2-lobed, 1/2 as long as wide, with 8 papillae.

reflexed, obovoid, 10-15 × 4-5 mm.

erect to pendent at maturity, linear, often torulose, slender to somewhat stout, straight to moderately incurved, 12-24(-30) mm.

ca. 3.5 mm diam., with numerous small protuberances.

nearly 2 mm diam., appearing essentially smooth under magnification, narrow marginal ring present or absent.

= ca. 130.