Flora of North America species comparison

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

ascending and spreading or prostrate, branched, 3–30 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.

1.5–4.5 cm;

stipules narrowly linear, 2.5–3.5 mm;

petiole 1–1.5 cm;

stipels of brown hairs;

petiolules 0.5 mm;

leaflets 5–11, sometimes subopposite or alternate proximally, opposite distally, blades elliptic or obovate, 7–14 × 3–4 mm, base cuneate to broadly cuneate, apex broadly acute or obtuse, apiculate, surfaces pubescent, hairs erect, spreading, and appressed.

20–30+-flowered, dense, 3.5–5.5 cm.

3–10-flowered, lax, 2.5–3.5 cm.

0.5 cm.

0.7–1.2 cm.

1 mm.

0.5–1 mm.

5–6 mm;

calyx 1.5–2 mm, lobes deltate to lanceolate;

corolla greenish yellow, orange, or purple-pink.

2.5–3 mm;

calyx 1.5–1.9 mm, lobes subulate;

corolla reddish or salmon pink.

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

brown, spreading, slightly deflexed, or slightly ascending, cylindric, straight, 18–26 mm, papery, pubescent.

4–6, reddish brown, cuboid.

8–12, amber-brown, cuboid.

= 16, 32.

= 16.