Flora of North America species comparison

10–30 dm;

distal branches arching, bark dark brownish red;

infrastipular prickles single or paired, curved, falcate, 6–12 × 3–7 mm, lengths varying or ± uniform, internodal prickles sometimes mixed with aciculi and glandular setae.

± flexuous, erect, to 20 dm, sparsely branched, distal branches and leaves glaucous, with purplish bloom;

bark becoming red-brown, glabrous;

infrastipular prickles absent, internodal prickles sparse or absent, aciculi absent or erect, curved, or declined, subulate, 2–5 × 1.5–4.5 mm, base mostly broad, eglandular.

persistent, 4–6.5 cm;

stipules 6–10 × 2–4 mm, auricles 3–5 mm, margins stipitate-glandular, surfaces glabrous, eglandular;

petiole and rachis with pricklets, puberulent, stipitate-glandular;

leaflets 5–7(–9), viscid glands with ripe apple scent, terminal: petiolule 5–10 mm, blade mostly suborbiculate or broadly oval, 10–25 × 8–15 mm, base obtuse, margins 2- or multi-serrate, teeth 10–18 per side, apex acute to obtuse, abaxial surfaces glabrous or pubescent, usually densely viscid-glandular, adaxial green, lustrous to dull, puberulent or glabrous.

6–10.5 cm;

stipules 13–16 × 1.5–2 mm, auricles flared, 2.5–5 mm, margins entire, eglandular or sparsely gland-fringed, surfaces glabrous, eglandular;

petiole and rachis usually with pricklets, glabrous, eglandular;

leaflets 5–7(–9), terminal: petiolule 10–20 mm, blade narrowly elliptic to ovate, 20–45 × 15–25 mm, leathery, base cuneate, sometimes rounded, margins 1-serrate, eglandular or few gland-tipped, teeth 12–18 per side, eglandular, apex acute, abaxial surfaces pale green, sometimes dull red, glaucous, glabrous, eglandular, adaxial green-red or purplish, glaucous, dull, glabrous.

panicles, 1–3(–7)-flowered.

corymbs, rarely panicles, 1–5-flowered.

erect, 6–9 mm, densely stipitate-glandular, sometimes mixed with aciculi [and setae];

bracts 2, ovate-lanceolate to lanceolate, 15 × 5 mm, margins stipitate-glandular, surfaces glabrous, eglandular.

erect, slender, (10–)15–25 mm, glabrous, stipitate-glandular;

bracts 1 or 2, narrowly ovate-lanceolate, 8–23 × 3–6 mm, margins entire, eglandular, surfaces glabrous, eglandular.

2–4 cm diam.;

hypanthium obovoid or broadly oblong, 5–6 × 3–4 mm, eglandular, neck (0–)1–1.5 × 3–4 mm;

sepals erect or spreading, rarely reflexed, lanceolate or ovate-lanceolate, 14–18 × 2 mm, margins mostly pinnatifid, tip 3–5 × 0.5–1 mm, abaxially densely stipitate-glandular;

petals bright or deep pink, 11–20 × 11–18 mm;

carpels 25–45, styles villous or glabrous, exsert 1–2 mm beyond stylar orifice (1.2–2 mm diam.) of hypanthial disc (2.5–4 mm diam.).

2–3 cm diam.;

hypanthium narrowly ovoid, 5.5–7 × 3.5–5.5 mm, glabrous, eglandular, neck purplish, absent or 1 × 2 mm;

sepals spreading, lanceolate, 15–25 × 1.5–2 mm, tip 10–15 × 1 mm, margins entire, sometimes pinnatifid, abaxial surfaces glabrous, mostly stipitate-glandular;

petals single, deep pink to crimson-red, sometimes white basally, 8–14 × 5–6 mm;

carpels 30–32, styles exsert 1–2 mm beyond stylar orifice (1.5–2 mm diam.) of hypanthial disc (3 mm diam.).

dark red, subglobose to broadly ovoid, ellipsoid, or pyriform, 10–25 × 7–22 mm, glabrous, sometimes setose, eglandular;

sepals tardily deciduous, mostly erect.

dark brownish red to crimson red, globose, ovoid, or obovoid, 10–13 × 9–11 mm, fleshy, glabrous, eglandular, neck absent;

sepals deciduous as hips mature, erect to spreading.

15–25, tan, 3.5–4(–5) × 2–2.5(–3) mm.

basiparietal, 15–23, light tan to tan, 4–4.5 × 2.5–3 mm.

= 35, 42.

= 28.