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, sometimes arching, 10–25 dm, densely branched;

bark greenish white when young, purplish black with age, densely tomentose or puberulent;

infrastipular prickles paired, erect, stout, subulate, 10 × 4 mm, base pubescent, internodal prickles similar, densely mixed with aciculi and stipitate glands.

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.

7–11 cm;

stipules 20–30 × 4–7 mm, auricles flared, 4–6 mm, margins entire or unevenly serrate, sessile-glandular, surfaces rugose, glabrous or pubescent, glandular;

petiole and rachis with pricklets usually curved, subequal, pubescent, usually sparsely glandular;

leaflets 5–9, terminal: petiolule 8–18 mm, blade widely elliptic to ovate, rarely obovate, 20–55 × 10–35 mm, leathery, rugose, base cuneate to obtuse, margins usually 1-crenate-serrate, eglandular, sometimes gland-tipped, teeth 11–17 per side, sometimes gland-tipped, apex obtuse to acute, abaxial surfaces gray-green, deeply veined, pubescent, eglandular, adaxial dark green, lustrous, rugose, glabrous.

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

corymbs, 1(–4)-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, sometimes reflexed (as hip matures), stout, 10–15(–30) mm, pubescent, sometimes setose, sparsely sessile- or stipitate-glandular;

bracts 2, ovate-lanceolate, 12(–15) × 2(–5) mm, margins entire with few hairs, eglandular or gland-tipped, surfaces 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.).

6–9 cm diam.;

hypanthium depressed-globose, 6–8 × 5–6 mm, glabrous, sometimes setose overall or only in neck area, eglandular, rarely glandular, neck 1–2 × 4–5 mm;

sepals erect, ovate-lanceolate, 20–37 × 4–6 mm, tip 4–5 × 1–2 mm, margins entire, rarely pinnatifid, tomentose, glandular, abaxial surfaces pubescent, sessile- and stipitate-glandular, often setose;

petals single, sometimes double (cultivars), purplish pink or white, 35–50 × 30–45 mm;

carpels 48–60, styles exsert 1–2 mm beyond stylar orifice of hypanthial disc (5–10 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, depressed-globose, 18–20 × 20–25 mm, leathery, glabrous, sometimes setose, eglandular, rarely glandular, neck 1–2 × 4–5 mm;

sepals persistent, erect.

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

basiparietal, 40, tan, 4–6 × 2–4.5 mm.

= 14, 28.

= 14.