Flora of North America species comparison

10-70 cm, from caudices, caudices ascending to vertical.

5-35(-60) cm, from tubers with rhizomes near apex, tubers ascending or vertical, rhizomes horizontal or ascending.

3-6(-10), 1-2-ternate;

petiole (2-)4-10(-14) cm;

terminal leaflet petiolulate to ±sessile, broadly and irregularly rhombic to obovate, (1.5-)2.5-4.5(-5.5) × (1-)3-10 cm, base narrowly cuneate, margins incised on distal 1/3, apex broadly acute to nearly obtuse;

surfaces abaxially villous-silky, hispid to villous, or sparsely long-pilose, adaxially glabrous, nearly glabrous, villous-silky, or hispid to villous;

lateral leaflets (2-)3x-parted; ultimate segments (1.5-)2-3.5(-5) mm wide.

1-3(-5), 1-2-ternate;

petiole 3-9(-10) cm;

terminal leaflet petiolulate, rarely sessile, obtriangular, 2-3-cleft, 1-3 × 0.8-2(-2.5) cm, base narrowly attenuate to strongly and narrowly cuneate, margins serrate, rarely dissected on distal 2/3, apex obtuse to broadly acute, surfaces glabrous;

lateral leaflets ±pinnately 1-2(-3)×-lobed or -parted; ultimate lobes 2-10 mm wide.

2-7-flowered cymes or flowers solitary;

peduncle villous, pilose, or hispid to villous;

involucral bracts usually 3-5, occasionally 2 in secondary involucres, 1-2-tiered, ternate, occasionally incompletely ternate, ±similar to basal leaves, greatly reduced, bases distinct;

terminal leaflet petiolulate to ±sessile, broadly and irregularly rhombic to obovate, (1.5-)3-4(-5) × 0.5-1(-2) cm, base narrowly cuneate, margins incised on distal 1/3, apex broadly acute to nearly obtuse, surfaces abaxially hispid to villous, villous-silky, or sparsely long-pilose, adaxially glabrous, nearly glabrous, hispid to villous, or villous-silky;

lateral leaflets (2-)3x-parted or -lobed, lobes frequently unequal; ultimate lobes 1.5-3(-4.3) mm wide.

1-flowered;

peduncle proximally glabrous, distally villous;

involucral bracts 3, borne below middle of scape at anthesis, 1-tiered, simple, ±similar to basal leaves, obtriangular, 3-cleft, 1-2.5 cm, bases somewhat clasping, connate, margins incised on distal 1/2, apex acuminate, surfaces sparsely pilose;

segments 3, broadly linear;

lateral segments 1-2x-lobed or -parted; ultimate lobes 1-2.5 mm wide.

sepals 5-9, green to yellow, blue, purple, red, or occasionally white, or abaxially blue, red, yellow and red, or purple, or tinged purple, adaxially white, yellow, yellow and red, blue, or tinged purple, ovate to oblong, 5-17 × (3.5-)5-7(-9) mm, abaxially hairy, adaxially glabrous;

stamens 50-80.

sepals 10-20(-30), white to rose or blue to purple, linear to oblong, (6-)10-20(-22) × 2-5(-7) mm, abaxially sparsely hairy, adaxially glabrous or nearly so;

stamens 50-60.

body irregularly ellipsoid or elliptic, flat, 3-4 × 1.5-2 mm, not winged, tomentose, woolly, or villous;

beak ±straight, distally recurved or strongly hooked, 1-6 mm, glabrous.

body ovoid, 1.5-2.5(-3) × ca. 2 mm, not winged, densely woolly;

beak straight, 1.3-2 mm, projecting beyond achene indument, proximally tomentose, not plumose.

spheric;

pedicel 6-15(-23) cm.

fusiform;

pedicel (5-)10-20 cm.

=16.