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.

erect to deflexed, 3–6 dm, densely branched;

bark dull reddish brown, sometimes green, glabrous;

infrastipular prickles paired, erect, subulate, 2–5 × 0.5–1 mm, base glabrous, internodal prickles or aciculi rare, sometimes absent.

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.

3–7 cm;

stipules 6–14 × 1.5–4 mm, auricles flared, 2–3 mm, margins entire or glandular-serrate, eglandular, surfaces glabrous, rarely puberulent, eglandular;

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

leaflets (5–)9(–11), terminal: petiolule 1–4(–6) mm, blade lanceolate to narrowly elliptic, 14–25 × 3–7 mm, membranous, base long-cuneate, margins 1-serrate, gland-tipped or eglandular, teeth 9–15 per side, gland-tipped, apex acute, abaxial surfaces light green, glabrous, eglandular, exserted midveins sometimes with sparse pricklets, pubescent, stipitate-glandular, adaxial deep green, lustrous, glabrous.

panicles, 1–3(–7)-flowered.

corymbs, 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, 2–8 mm, glabrous, stipitate-glandular;

bracts 2, lanceolate, 8–12 × 3–4 mm, margins entire, few stipitate-glandular, 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.).

3.5–4.5 cm diam.;

hypanthium subglobose, globose, or ovoid, 4–4.5 × 2.5–4 mm, glabrous, usually densely stipitate-glandular, neck absent;

sepals reflexed or spreading, lanceolate, 13–20 × 2–3 mm, tip 3 × 0.5 mm, margins pinnatifid, abaxial surfaces glabrous or puberulent, stipitate-glandular;

petals single, white, rarely pink, 17–28 × (6–)10–18 mm;

carpels 20–32, styles exsert 1–1.5 mm beyond stylar orifice (1.5–2 mm diam.) of hypanthial disc (3–4 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.

dull red, globose to depressed-globose, rarely urceolate, 9–10 × 7–9 mm, leathery, glabrous, densely stipitate-glandular, neck absent or insignificant;

sepals deciduous, spreading to erect.

15–25, tan, 3.5–4(–5) × 2–2.5(–3) mm.

mostly basal, 8–12, tan, 4(–5) × 1.5–2 mm.

= 35, 42.

= 14.