Flora of North America species comparison

ascending to erect, (2–)4–20(–25) dm, openly branched;

bark ± glaucous when young, dark reddish brown or dull red with age outer layer may exfoliate as thin ash gray peel, glabrous;

infrastipular prickles usually paired, erect, rarely curved, usually subulate, 2–10 × 2–4 mm, base glabrous, internodal prickles rare or absent.

erect, slender or stout, 6–15 dm, openly branched;

bark dull red to purplish red, glabrous;

infrastipular prickles rarely present, internodal prickles densely mixed with aciculi to stem apices, erect, terete, 1–3(–4) × 0.5–2 mm, base rarely extending to 3 mm, smallest often gland-tipped, aciculi rarely absent.

5–10(–13) cm;

stipules 8–22 × 2–5 mm, auricles flared, 2–5 mm, margins usually entire, sometimes erose or lobed, finely ciliolate to ciliate, eglandular, surfaces glabrous or sparsely pubescent, sparsely stipitate-glandular or eglandular;

petiole and rachis sometimes with pricklets, glabrous or hairy hairs to 1 mm, sometimes stipitate-glandular;

leaflets 5–7(–9), terminal: petiolule 8–12 mm, blade elliptic-ovate, (15–)20–45(–60) × 9–16(–20) mm, widest at or below middle, membranous, base cuneate to obtuse, margins 1(–2)-serrate, teeth 12–22 per side, on distal 3/4–4/5 of margin, acute, eglandular, apex acute, sometimes obtuse, abaxial surfaces pale green, usually sparsely pubescent, eglandular, adaxial green, dull, glabrous, rarely puberulent.

5–10(–16) cm;

stipules 18–24 × 4–7 mm, auricles flared, 2.5–4(–7) mm, margins undulate, coarsely or shallowly glandular-serrate, surfaces glabrous or puberulent, eglandular;

petiole and rachis sometimes with pricklets, sometimes with sparse aciculi, pubescent, sometimes glabrous, rarely stipitate-glandular;

leaflets (5–)7–9(–11), terminal: petiolule 4–12 mm, blade obovate, sometimes elliptic, 15–40 × 8–20 mm, membranous, margins 1(–2+)-serrate, teeth 8–16 per side, eglandular, rarely gland-tipped, apex acute, abaxial surfaces pale green, pubescent, sometimes glabrous, eglandular, adaxial green, ± glaucous, dull, sometimes pubescent (especially along midveins).

corymbs, sometimes panicles or solitary flowers, 1–12-flowered.

corymbs, 1–6(–16)-flowered.

erect, sometimes recurved, slender, 10–22 mm, usually glabrous, sometimes finely puberulent, eglandular, rarely stipulate-glandular;

bracts 2–3, lanceolate, 8–14 × 3–6 mm, margins entire, sometimes serrate, irregularly stipitate-glandular and/or erose, surfaces glabrous or pubescent, eglandular.

erect, slender, 10–20 mm, glabrous, eglandular;

bracts 1 or 2(or 3), broadly lanceolate, 11–20 × 5–8 mm, margins entire, eglandular, surfaces glabrous, eglandular.

2.4–3.8 cm diam.;

hypanthium ovoid-urceolate, 3–5 × 2.5–3.5 mm, glabrous, rarely setose, eglandular, neck (0–)0.5–1 × 2 mm;

sepals spreading, ovate-lanceolate, 10–17 × 1.5–3 mm, tip 3–7(–10) × 1.5–2.5 mm, margins entire, abaxial surfaces sometimes puberulent, densely or sparsely stipitate-glandular, rarely eglandular;

petals single, pink to deep pink, 12–18 × 10–18 mm;

stamens 75;

carpels 22–35, styles exsert 1–2 mm beyond stylar orifice (1 mm diam.) of hypanthial disc (3.5 mm diam.).

3.3–4 cm diam.;

hypanthium globose, 5–6.5 × 4–5.5 mm, glabrous, eglandular, neck (0–)0.5–1.5 × 2 mm;

sepals spreading to erect, lanceolate, 11–20(–30) × (1.5–)3–4 mm, tip 3–7 × 0.5–1 mm, margins pinnatifid or entire, abaxial surfaces glabrous, stipitate-glandular or eglandular;

petals single, rarely double, pink or rose, sometimes fading white, rarely white, 22–26 × 21–30 mm;

stamens 120;

carpels 26–43, styles exsert 1.5–2 mm beyond stylar orifice (1.5 mm diam.) of hypanthial disc (3 mm diam.).

scarlet, globose, sometimes subglobose or ovoid, 7–15 × 7–13 mm, fleshy, glabrous, eglandular, rarely setose- or stipitate-glandular, neck (0–)1–1.5 × 1.5–3.5 mm;

sepals persistent, erect.

dull orange-red, globose, subglobose, or oblong, 10–11 × 7.5–13 mm, fleshy, glabrous, eglandular, rarely stipitate-glandular, neck 0–2 mm;

sepals persistent, erect at hip maturity.

basiparietal, 5–35, tan, 3–4 × 1.5–2.5 mm.

basiparietal, 12–15, dark buff, ellipsoid, 4.5–5 × 2.5 mm.

= 14, 28.

= 28.