Flora of North America species comparison

15–20 cm, surfaces glabrate, primary veins puberulent; bipinnate: pinnae 2–6(–8) pairs, sometimes 1+ pinnae replaced by an abnormally large, single leaflet to 6 cm, leaflets (2–)5–8 pairs, blades 1.3–2.5 cm, length 1.5–2 times width; pinnate: slightly petiolulate, petiolules glabrate, leaflets 10–14 pairs, blades ovate-oblong, 1.5–3.5 cm, length 1.5–2 times width, surfaces abaxially pale green, adaxially shiny, dark green.

10–20 cm, surfaces glabrate or glabrescent; bipinnate: pinnae usually 4 or 5 pairs, sometimes 1+ pinnae replaced by an abnormally large, single leaflet to 6 cm, leaflets 7–9 pairs, blades 1–2.5 cm, length 1.5–2 times width; pinnate: slightly petiolulate, petiolules glabrous, leaflets 7–12 pairs, blades elliptic-oblong, (1.5–)2.5–4 cm, length 1.5–2 times width, surfaces abaxially dull green, adaxially shiny, dark green.

5–9 cm.

5–15 cm, staminate flowers clustered.

0–3 mm.

perianth-hypanthium 3–5 mm;

calyx lobes unequal, elliptic-lanceolate, acute, hairy;

corolla oval to oblong;

stamens 5–7(–10);

ovary woolly.

perianth-hypanthium 2.5–3 mm;

calyx lobes lanceolate, obtuse, slightly hairy;

corolla oblong;

stamens 3–7(–10);

ovary long-stalked, glabrous.

laterally compressed and plump, oblong, straight or curved and twisted in age, 20–40 × 2–3(–4) cm, ± indehiscent;

valves ± woody, pulp prominent.

long-stalked, flat, straight, asymmetrically ovate, oblique, 3–5(–8) × (0.5–)1.5–2 cm, indehiscent;

valves papery, transversely striate, pulpless.

4–25(–30), compressed, ovoid-elliptic, 0.9 × 0.5 cm.

1[–3], slightly compressed or subterete, orbicular, 1 × 1 cm.

= 28.

= 28.