Flora of North America species comparison

4–6 cm × 5–10 mm proximally, to 20+ cm × 1–2 mm distally.

1–4, 2–3 m × 1–2 mm.

stipules deltate, 1 mm;

petiole angular, sulcate adaxially, 1–4 cm;

stipels persistent, striate, linear to subulate, 1–2 mm;

petiolules 1.5–2 mm;

rachis 0.5–1.5 cm;

leaflet blades elliptic or elliptic-lanceolate to lanceolate, 15–55 × 8–25 mm, leathery, base rotund to truncate, primary lateral veins 5–7 pairs, apex broadly acute.

1 per node, 3–8 cm;

bracts striate, concave around pedicel, elliptic-ovate, 4–6 mm;

bracteoles striate, lanceolate-ovate, 8–10 × 4–5 mm, adaxial surface with uncinulate hairs;

rachis flexuous, 1–1.5 cm, strigose.

5–8 mm, 10–14 mm in fruit, thinly pilose.

calyx tube 3–4 × 5–7 mm, lobes unequal, abaxial and lateral ones 4–6 mm, adaxial one 8–11 mm, hairs uncinulate;

corolla lavender to pinkish lavender;

banner 20–30 mm, claw 5–6 mm, spur 2 mm;

wings 20–24 × 4 mm, claw 5–6 mm;

keel 20–25 × 10–11 mm, claw 4–5 mm;

staminal tube 32–34 mm;

apical distinct filaments 3–4 mm;

ovary 16–19 mm;

style 17–20 mm, apex dilated 2 × 1 mm, barbate.

dehiscence causing valve to twist 2–3 turns, (70–)90–125 × 5–6 mm;

beak 8–12 mm.

8–12, brownish black, 3–4 × 4–5 × 1 mm.