Flora of North America species comparison

erect or ascending, 80–200 cm, branched distally, short appressed-pubescent, pilose, or villous.

ascending or erect, clustered, 30–160 cm, initially wandlike, branched apically, villosulous or appressed-pubescent.

stipules subulate to narrowly triangular, 3–6 mm;

petiole 10–15(–20) mm, longer than rachis;

leaflet blades ovate-elliptic, obovate, or rounded, apex obtuse or retuse, minutely apiculate, surfaces green, cinereous, or silvery abaxially, sparsely to densely sericeous abaxially, glabrous, sericeous, pilose, or silvery with fine, dense, appressed-silky hairs adaxially;

terminal blade 10–40(–50) × (7–)10–30 mm, length 1.3–1.8 times width.

stipules subulate to narrowly triangular, to 6 mm;

petiole 7–12 mm, longer than rachis;

leaflet blades narrowly elliptic-oblong to linear, base obtuse or cuneate, apex apiculate, surfaces appressed-pubescent abaxially, usually sparsely appressed-pubescent, sometimes glabrescent (but not glabrous), adaxially;

laterals similar to terminal;

terminal blade 10–35 × 3–5 mm, length 3–7 times width.

10–40-flowered, axillary from distal leaves or clustered in compound inflorescences, flowers compact to lax, axis and pedicels visible, flowers chasmogamous and cleistogamous.

4–14-flowered, crowded distally, flowers chasmogamous and cleistogamous.

longer than subtending leaves.

shorter than or equal to subtending leaves.

1–2 mm;

bracteoles longer than calyx tube.

0.5–2 mm;

bracteoles shorter than calyx tube.

chasmogamous 7–10 mm;

calyx 7–10 mm, pubescent, tube 1–2 mm;

lobes 5, lateral narrowly triangular, 7–8 mm, apices spinelike;

corolla cream-white or creamy with pink or purple at throat;

wings 6–7 mm;

keel 5–6 mm.

chasmogamous 5–7 mm;

calyx 3–4.5 mm, tube 1 mm;

lobes 4, lateral narrowly triangular, 1–1.5 mm, adaxial connate proximally;

corolla pink to purple;

wings 5–6 mm;

keel 4.5–5 mm.

chasmogamous slightly included in calyx, ovate-oblong, 6–8 × 4–5 mm, cleistogamous slightly included in calyx, oblong, 6 × 4 mm;

stipe subsessile.

chasmogamous exserted from calyx, suborbicular, 4–7 mm, cleistogamous exserted from calyx, calyx 1/5–2/5 loment length, similar to chasmogamous, 3.5–5 mm;

stipe 1 mm.

= 20.