Flora of North America species comparison

spreading, procumbent, or erect, 2–8(–10) dm, openly branched;

bark dark brown, glabrous;

infrastipular prickles sometimes present, paired, erect or declined, rarely curved, subulate, 6 × 6 mm, base glabrous, internodal prickles usually dense, mixed with aciculi, erect or declined, subulate, terete, 2–7 × 2 mm, eglandular.

erect, glaucous, stout, 10–20 dm;

distal branches often flexuous, bark reddish, ± pruinose or glaucous;

infrastipular prickles single or paired, curved or erect, 6–9 × 3–4 mm, lengths ± uniform, internodal prickles sometimes present, aciculi absent.

3–10 cm;

stipules 10–14 × 4–5.5 mm, auricles flared, 4–5 mm, margins entire or glandular-serrate, eglandular or gland-tipped, surfaces glabrous, eglandular;

petiole and rachis with pricklets, glabrous, rarely puberulent, eglandular;

leaflets (5–)7–9, terminal: petiolule 3–5(–9) mm, blade narrowly elliptic or lanceolate, rarely ovate, 13–27(–40) × 7–17 mm, membranous, margins 1-serrate, eglandular, rarely gland-tipped, teeth 12–17 per side, sometimes gland-tipped, apex acute to subacuminate, abaxial surfaces green, glabrous or pubescent, eglandular, adaxial deep green, purplish red in fall, lustrous, glabrous.

deciduous, 6–10(–18) cm;

stipules 10–14 × 3–5 mm, auricles 3–4 mm, margins short stipitate-glandular, surfaces usually glabrous, sometimes pubescent, glandular;

petiole and rachis with pricklets, pubescent, glandular;

leaflets 5–7, terminal: petiolule 6–12(–40) mm, blade ovate to narrowly or broadly elliptic, 30–45(–65) × 15–30(–45) mm, base rounded, sometimes slightly cuneate, margins 2- or multi-serrate, teeth 17–26 per side, apex acute or rounded, abaxial surfaces light green, ± rugose, tomentose, densely resinous-glandular, glands reddish brown, resin-scented, adaxial green, dull, tomentulose or glabrous, eglandular.

corymbs, 1–3-flowered.

panicles, 1–3(or 4)-flowered.

erect or recurved (as hips mature), slender, 13–25 mm, glabrous, densely long stipitate-glandular;

bracts 1 or 2, lanceolate, 9–18 × 3.5–7 mm, margins entire, rarely serrate, few gland-tipped, apically cleft 2–3.5 mm, surfaces glabrous, eglandular.

erect to reflexed as hips mature, 12–17 mm, sparsely stipitate-glandular;

bracts 2, ovate-lanceolate, 16–21 × 4–6 mm, margins glandular, surfaces tomentose to puberulent or glabrous, glandular or eglandular.

4–5 cm diam.;

hypanthium globose or subglobose, 3–4 × 3–5 mm, glabrous, densely stipitate-glandular, neck absent;

sepals spreading to reflexed, lanceolate, 14–22 × 2–3 mm, tip 5–10 × 0.5–1 mm, margins entire, abaxial surfaces glabrous, densely stipitate-glandular;

petals single, pink to rose, 19–23 × 20–23 mm;

carpels 20–24, styles exsert 0.5–1 mm beyond stylar orifice (1.5–2 mm diam.) of hypanthial disc (4 mm diam.).

2.5–3.5 cm diam.;

hypanthium globose, 5–6 × 5 mm, eglandular or sparsely stipitate-glandular, neck absent;

sepals spreading to erect, lanceolate, 15–20 × 3–3.5 mm, margins sometimes pinnatifid, tip 4–8 × 1.5–2 mm, abaxially densely stipitate-glandular;

petals deep rose pink, rarely white, 15–19 × 13–15 mm;

carpels 52, styles lanate or villous, exsert 1–2 mm beyond stylar orifice (2.5 mm diam.) of hypanthial disc (4.3 mm diam.).

red to dark red, globose to depressed-globose, 8–10 × 7–10 mm, fleshy, glabrous, densely stipitate-glandular, neck absent;

sepals deciduous, erect or spreading to reflexed.

orange to bright red, globose or obovoid to ellipsoid, 13–18 × 11–18 mm, glabrous, sparsely stipitate-glandular;

sepals persistent, usually spreading-erect.

basal, 10–14, tan, darkening with age, 2.6–2.8 × 1.6–1.8 mm.

40, tan, 5–5.5 × 2.5–3 mm.

= 14.

= 28, 35, 42.