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.

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.

corymbs, 1–3-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.

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.).

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.

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

= 14.