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 to stout, 2–20(–50) dm, densely or openly branched;

bark dark red, glabrous;

infrastipular prickles usually paired, sometimes absent, erect or curved to hooked, declined, or introrse, usually subulate, sometimes terete or flattened, stout, (0.5–)2–7(–13) × 1–5 mm, base glabrous, internodal prickles usually sparse to dense, often intermixed with aciculi.

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.

2.5–8(–12) cm;

stipules (6–)9–16(–25) × 2–5 mm, auricles usually flared, 2–6 mm, margins usually entire, sometimes undulate, sparsely serrate, eglandular or glandular, surfaces glabrous, eglandular, rarely glandular;

petiole and rachis with pricklets sparse or absent, usually puberulent-velutinous hairs 0.1(–0.5) mm, rarely glabrate, eglandular, rarely stipitate-glandular;

leaflets 5–7(–9), terminal: petiolule 3–12 mm, blade obovate, elliptic, or ovate, rarely cordate, (6–)12–35(–40) × 6–20(–26) mm, usually widest at or above middle, membranous, base cuneate, rarely obtuse, margins 1(–2+)-serrate, teeth (5–)7–14 per side, on distal 1/2–4/5 of margin, acute, usually eglandular, apex acute or obtuse, abaxial surfaces pale green, glabrous, sometimes pubescent or puberulent, eglandular, sometimes glandular, adaxial green, rarely glaucous, dull, glabrous.

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

usually panicles, sometimes corymbs or solitary flowers, 1–10(–25+)-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(–33) mm, glabrous, eglandular, rarely stipitate-glandular;

bracts 2, ovate or lanceolate, (6–)9–20 × 4–9 mm, margins entire or ciliate, eglandular, sometimes sparsely glandular, surfaces pubescent, 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.).

(2–)3–3.5(–5) cm diam.;

hypanthium ovoid, rarely oblong or globose, 3–6 × 3–5 mm, glabrous, eglandular, rarely stipitate-glandular, neck (0–)0.5–1 × 1.5–3.5 mm;

sepals spreading, ovate-lanceolate, 8–15(–21) × 1.5–2.5 mm, tip 4–6 × 0.3–1(–2) mm, margins usually entire, abaxial surfaces glabrous, eglandular, sometimes sessile- or stipitate-glandular;

petals single, pink to deep rose, 15–20(–25) × 15–20(–25) mm;

stamens 65;

carpels (16–)20–40(–50), styles exsert 1–2 mm beyond stylar orifice (2–2.5 mm diam.) of hypanthial disc (3–5 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.

red, orange-red, or purplish red, globose, depressed-globose, ovoid, oblong, or urceolate, 6–13(–16) × 5–12(–15) mm, fleshy, usually glabrous, eglandular, neck (0–)1–2 × 3–4(–7) mm;

sepals persistent, erect to spreading.

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

basiparietal, 15–40, tan to dark tan, (3.5–)4–5(–6) × 2–4 mm.

= 14, 28.