Flora of North America species comparison

erect or ascending, many stems from ground, much-branched distally, stems angled, 5–20 dm.

erect or sprawling, unbranched or branched, 3–10 dm.

6–11 cm;

stipules narrowly triangular, attenuate, 5–6 mm;

petiole 10–20 mm;

stipels 0.5–1.5 mm;

petiolules 0.5–1.5 mm;

leaflets 9–17, opposite, blades elliptic or oblanceolate, 15–20(–40) × 5–10(–15) mm, base cuneate, apex acute, mucronate, surfaces strigose, abaxially sometimes glabrate.

4–12.5 cm;

stipules narrowly subulate, 10–13 mm;

petiole 0.8–1.2 cm;

stipels 1–3 mm;

petiolules 1.5–2 mm;

leaflets 3–7(or 9), opposite, blades elliptic to obovate, 15–60 × 7–25 mm, base cuneate, apex rounded, short-mucronate, surfaces pubescent.

20–30+-flowered, dense, 3.5–5.5 cm.

10–20+-flowered, dense, 6–20 cm.

0.5 cm.

4–9 cm.

1 mm.

1–2 mm.

5–6 mm;

calyx 1.5–2 mm, lobes deltate to lanceolate;

corolla greenish yellow, orange, or purple-pink.

6–7 mm;

calyx 3.5–5 mm, lobes setaceous, bristly-plumose;

corolla salmon red to maroon.

dark brown, reflexed, cylindric, strongly curved, 15–20 mm, leathery, base not bulbous or reddish, strigose to glabrate.

dark brown, deflexed, cylindric, straight, 15–22 mm, leathery, hispid.

4–6, reddish brown, cuboid.

6–8, greenish, cuboid.

= 16, 32.

= 16.