Flora of North America species comparison

usually erect to sprawling, 10–25(–50) dm;

distal branches arching, bark green;

infrastipular prickles paired, curved or appressed, 6–7 × 4–9 mm, lengths ± uniform, internodal prickles rare, single, rarely absent.

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.

deciduous, 6–11 cm;

stipules 10–22 × 3–5 mm, auricles 3–5 mm, margins stipitate-glandular or eglandular, surfaces glabrous, eglandular or sparsely stipitate-glandular;

petiole and rachis sometimes with pricklets, glabrous, eglandular;

leaflets 5–7, terminal: petiolule 5–11 mm, blade ovate, obovate, or elliptic, 15–40 × 12–20 mm, base obtuse to slightly cuneate, margins 1- or multi-serrate, teeth 20–30 per side, apex acute, sometimes acuminate, abaxial surfaces glabrous, rarely pubescent or tomentose on midveins, eglandular, adaxial dark green to green, lustrous to dull, glabrous, rarely tomentose.

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, sometimes corymbs, solitary, sometimes 2 or 3(–7)-flowered.

corymbs, 1(–5)-flowered.

erect to reflexed as hips mature, 8–20 mm, eglandular or stipitate-glandular;

bracts 2, ovate-lanceolate, 6–18 × 4–5 mm, margins glandular-serrate, abaxial surfaces puberulent, adaxial 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.

3.5–5 cm diam.;

hypanthium narrowly urceolate, 7–9 × 3–6 mm, eglandular, neck 2–3 × 1–2 mm;

sepals appressed-reflexed, spreading, or erect, ovate-lanceolate, 10–17 × 3–5 mm, margins deeply pinnatifid, tip 4–6 × 0.5 mm, abaxially eglandular;

petals rose, pink, or white, sweet-scented, 18–25 × 15–18 mm;

carpels 26–36, styles villous, exsert 1–2 mm beyond stylar orifice (0.7–1.5 mm diam.) of hypanthial disc (4–5 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.).

red, globose, ovoid, urceolate, or ellipsoid, 10–16(–24) × 6–16 mm, glabrous, eglandular;

sepals deciduous as hips mature, reflexed.

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.

14–23, tan, 5–6 × 3–3.5 mm.

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

= 35.

= 14.