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, 1–8(–15) dm, openly branched;

bark dark reddish brown, glabrous;

infrastipular prickles single or paired, erect, subulate, 3–10 × 0.5–1.5 mm, base glabrous, internodal prickles dense, smaller, sometimes mixed 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–)3.5–7(–8.5) cm;

stipules 5–10(–30) × 2–5 mm, auricles slightly flared, 1–3 mm, margins entire, sometimes stipitate-glandular, surfaces glabrous, eglandular;

petiole and rachis usually with pricklets, glabrous or finely hairy, stipitate-glandular;

leaflets 5(–7), terminal: petiolule 5–12 mm, blade ± elliptic, 12–25(–32) × 6–15(–20) mm, membranous to ± leathery, base rounded, sometimes obtuse to cuneate, margins multi-serrate to nearly 1-serrate, teeth (5–)7–12 per side, acute to obtuse, usually gland-tipped, apex obtuse to rounded, abaxial surfaces ± pale green, glabrous or sparsely hairy, glandular, adaxial green, dull, glabrous.

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

corymbs, 1–5(+)-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, mostly slender, 2–20(–35) mm, glabrous or sparsely hairy, sometimes stipitate-glandular;

bracts 1–3, lanceolate or ovate-lanceolate, 6–25 × 2–7 mm, margins entire or serrate, short stipitate-glandular, surfaces glabrous or sparsely pubescent, glandular.

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.).

2–4 cm diam.;

hypanthium ovoid to depressed-globose, 3.5–4 × 3.5–4 mm, glabrous, eglandular, neck 0.5 × 2.5–3.5 mm;

sepals spreading to reflexed, ovate-lanceolate, 7–12 × 3 mm, tip 2–8 × 0.5–2 mm, margins entire or slightly toothed, abaxial surfaces finely hairy, stipitate-glandular, sometimes eglandular;

petals single, deep pink, 10–20 × 10–20 mm;

carpels 10–40, styles exsert 1.5 mm beyond stylar orifice (1.5–2 mm diam.) of hypanthial disc (3.5–5 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.

scarlet, subglobose to ovoid, 10 × 10–12 mm, fleshy, glabrous, eglandular, neck 1 × 4–5 mm;

sepals persistent, erect.

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

basiparietal, 1–10, pale tan, 3–4 × 2.5–3 mm.

= 14, 28.

= 14.