Flora of North America species comparison

(10-)15-25(-30) × (5-)8-12(-18) cm;

blade with 3-4 orders of leaflets and lobes;

penultimate lobes oblong, distal usually coarsely 3-toothed at apex, (3-)6-12(-20) × 1.5-4 mm.

(7-)9-13(-16) × 3-7(-10) cm;

petiole (2-)4-7(-10) cm;

blade with 3-4 orders of leaflets and lobes; ultimate lobes linear-lanceolate, (2-)7-13(-18) × 1.5-3 mm, occasionally irregular, minutely apiculate.

paniculate, 2-20-flowered, shorter than to exceeding leaves;

bracts linear-lanceolate, 4-7(-10) × 1-1.5 mm, apex acuminate.

racemose, 1-3-flowered, barely exceeding leaves;

bracts ovate, 4-5 × 2-3 mm.

pendent;

sepals ovate to acuminate-lanceolate, (3-)6-7(-12) × 1-3 mm;

petals white to pale yellow or rose-tinted;

outer petals 12-18 × 2-4 mm, reflexed portion 3-5 mm;

inner petals 11-17 mm, blade 2.5-3.5 mm, claw linear-elliptic to linear-lanceolate, 6-9 × 1-2 mm, crest 1-2 mm diam., exceeding apex by 1-2 mm;

filaments of each bundle connate from base to shortly below anthers except for a 2-6 mm portion of median filament just above base, distinct portion of median filament forming angular loop that projects into base of outer petal; nectariferous tissue borne along loop;

style 4-7 mm;

stigma rhomboid, 2-horned.

erect to nodding;

pedicels 5-25 mm;

sepals ovate to lanceolate, 5-8 × 2-4 mm;

outer petals white to pink, (15-)18-22(-25) × 3-6 mm, reflexed portion (5-)7-8(-11) mm;

inner petals purple, (15-)18-22(-24) mm, blade spoon-shaped, 2-3 mm, claw obovate-elliptic, ca. 10 × 3-4 mm, crest absent;

filaments of each bundle connate at base and near apex, distinct in between, distinct portion of median filament forming loop that almost doubles back to its proximal end; nectariferous tissue borne at lowermost point of loop and often extending to base of median filament;

style 7-11 mm;

stigma 2-lobed, much reduced, ca. 2 times wider than style.

oblong, (10-)13-16(-20) × 4-5 mm.

spindle-shaped to ovoid, 10-15 × 4-6 mm.

reniform, ca. 2 mm diam., finely reticulate, elaiosome present.

reniform, ca. 2 mm diam., smooth, elaiosome present.

= 16.

= 16.