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.

procumbent or climbing, 10+ dm, rooting at nodes;

bark of canes green or brown;

prickles infrastipular and/or internodal, single or paired, curved or declined, ± stout, 4–5 × 2 mm, aciculi 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.

deciduous (north) or semipersistent (south), 8–10 cm;

stipules narrowly lanceolate, 10–12 × 2–3 mm, auricles erect, sometimes flared, 2–4 mm, margins fimbriate, stipitate-glandular, surfaces glabrous, eglandular;

petiole and rachis with pricklets, glabrous, stipitate- or, sometimes, sessile-glandular;

leaflets 7–9, terminal: petiolule 5–9 mm, blade broadly ovate to obovate, 15–30 × 12–20 mm, leathery, base cuneate, margins 1(–2)-serrate, teeth 12–16 per side, acute, gland-tipped, apex acute to acuminate, abaxial surfaces glabrous, eglandular except for glands on midveins, adaxial green, lustrous, glabrous.

(1–)5–20+-flowered.

panicles, 1–3(–7)-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.

18–25 mm, glabrous, eglandular;

bracts 1–3, lanceolate, 9–16 × 2.5–5 mm, margins sparsely 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.).

scent of apple or clover, 2–2.5 cm diam.;

hypanthium urceolate, 4–6.5 × 2–3 mm, eglandular, neck (0–)1 × 4–5 mm;

sepals ovate-acuminate, 6–8 × 1–1.5 mm, margins pinnatifid, tip 2 × 0.5 mm, abaxial surfaces glabrous, eglandular;

petals double, sometimes single, white, pink to rose distally, 13–15 × 11–15 mm;

carpels 12–21, styles pilose, exsert 3.5–5 mm beyond stylar orifice (1.5–2 mm diam.), hypanthial disc appearing flattened with age, 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.

red, globose, 5–10 × 5–9 mm, eglandular.

15–25, tan, 3.5–4(–5) × 2–2.5(–3) mm.

1–11, dark tan, 4–4.5 × 2–2.5 mm.

= 35, 42.

= 14(28).