Flora of North America species comparison

ascending or erect, clustered, slender, 70–150 cm, simple or branched apically, villosulous or strigose.

erect or ascending, 40–150 cm, wandlike or branched apically, strigose or puberulent.

stipules subulate to narrowly triangular, 3–5 mm;

petiole 7–10 mm, longer than rachis;

leaflet blades elliptic to elliptic-oblong, base obtuse, apex obtuse to retuse, apiculate, surfaces appressed-pubescent or subappressed-pilose abaxially, lateral veins often conspicuous abaxially, sparsely appressed-pubescent adaxially;

laterals similar to terminal;

terminal blade 10–40 × 5–12 mm, length 1.5–2.5(–3) times width.

stipules subulate to narrowly triangular, 2–4 mm;

petiole 7–20 mm, longer than rachis;

leaflet blades obovate to elliptic-oblong, apex obtuse or retuse, apiculate, surfaces strigose abaxially, often glabrous, sometimes sparsely appressed-puberulent only on midrib adaxially;

laterals not oblique at base;

terminal blade 10–40 × 5–15 mm, length 1.5–3 times width.

5–15-flowered, flowers clustered distally, shortly glomerate, flowers chasmogamous and cleistogamous.

4–10-flowered, crowded distally, flowers chasmogamous and cleistogamous.

shorter than or equal to subtending leaves.

shorter than or equal to subtending leaves.

0.5–2 mm;

bracteoles shorter than calyx tube.

2–3 mm;

bracteoles shorter than calyx tube.

chasmogamous 5–6 mm;

calyx 3–4 mm, sericeous or villous, tube 1 mm;

lobes 4, lateral narrowly triangular, 2–2.5 mm, adaxial connate proximally, apices acuminate;

corolla purple;

wings 5.7–6.2 mm;

keel 5–5.3 mm.

chasmogamous 6–7 mm;

calyx 3–4.5 mm, appressed-puberulent, tube 1–1.5 mm;

lobes 4, lateral narrowly triangular, 2–3 mm, adaxial connate proximally;

corolla pink-lavender to purple;

wings 6–7 mm;

keel 5–6 mm.

chasmogamous exserted from calyx, calyx 2/5 loment length, ovate, 4–6 mm, cleistogamous exserted from calyx, ovate, 4–5 mm, sericeous or villous;

stipe 0.2 mm.

body exserted from calyx, calyx 1/2 loment length, chasmogamous ovate to rounded, 5–7 mm, cleistogamous rounded, 4–6 mm, appressed-puberulent;

stipe 1.5 mm.

= 20.

= 20.