Flora of North America species comparison

internodes 5–10(–15) mm;

bark reddish brown.

3–20+, sparsely branched;

bark gray or reddish brown, smooth; long shoots present.

3-pinnately compound;

petiole 10(–15) mm;

blade obovate to obtrullate, (28–)45–70(–94) × (13–)20–45(–71) mm, surfaces moderately hirtellous, sparsely stipitate-glandular;

rachises straight;

pinnae (8–)10–12 per side, oblong to oblong-obovate, (3–)10–25(–40) × (1.8–)3–8(–13) mm;

pinnules (4–)7–10 per side, oblong, (1.2–)2.5–5(–10) × (0.6–)1.5–3(–5) mm, each pinnately divided into (3–)5–11 pairs of segments, segments oblong-obovate to obovate, (0.3–)0.6–1.5 × (0.2–)0.5–1 mm, terminal largest, each with terminal short-stipitate gland, adaxial rachis and rachilla with additional segments between pinnae and pinnules.

persistent, 2–3-odd-pinnately compound;

stipules persistent 1st year, deciduous with leaf base 2d year, linear-subulate, margins entire, sometimes stipitate-glandular;

petiole present;

blade obovate to obtrullate or lance-elliptic in outline, (2.8–)3.5–7(–9.4) cm, leathery, surfaces hirtellous;

pinnae 8–17 per side, oblong to oblong-obovate, pinnately or 2-pinnately divided; ultimate segments oblong-obovate to obovate or obliquely obovoid, margins entire.

(3–)5–7(–10)-flowered, panicles, 35–60(–80) mm;

peduncles 2–5 mm.

terminal, (1–)2–7(–10)-flowered, corymbs or panicles;

bracts present;

bracteoles present.

present.

hypanthium 4–6 mm;

hypanthia and sepals pubescent, stipitate glands 0.8–1.5 mm;

sepals oblong-lanceolate, 4.5–6(–7) mm, apex acute;

petals 6–9 mm;

stamens 55–65(–76);

styles 5.5 mm.

10–19 mm diam.;

hypanthium funnelform-turbinate, 3–6 mm diam., exterior hairy, usually stipitate-glandular;

sepals 5, reflexed, deltate;

petals 5, caducous, white, orbiculate, base short-clawed, margins erose-undulate, apex often retuse;

stamens 35–65(–76), shorter than petals;

torus absent;

carpels 1(or 2), sessile, stigmas lateral.

achenes, 1, subglobose, 3–5.5 mm, smooth;

hypanthium persistent;

sepals persistent, erect.

4.5–5.5 mm.

= 9.

= 18.