Flora of North America species comparison

erect to procumbent and vinelike, 10–20(–60) dm;

bark of canes green to light brown;

prickles infrastipular and internodal, single or paired, declined, usually curved, sometimes erect, stout, 3–4 × 7–9 mm, broad-based, sometimes mixed with aciculi, rarely absent.

erect to procumbent, climbing, vinelike, (10–)15–30(–100) dm;

distal branches glabrous, eglandular;

prickles infrastipular and/or internodal, single or paired, usually curved or declined, sometimes erect, flattened, ± stout, sometimes mixed with aciculi, rarely absent.

deciduous, 8–12 cm;

stipules narrowly lanceolate, 12–15 × 0.5–3 mm, auricles flared, 3–4 mm, margins entire, sometimes fimbriate, stipitate-glandular, surfaces glabrous, sparsely glandular;

petiole and rachis with or without pricklets, usually pubescent, stipitate-glandular;

leaflets 3 (mostly younger stems)–5 (older stems), terminal: petiolule 10–16 mm, blade ovate to elliptic-ovate, (30–)48(–70) × (20–)27(–40) mm, membranous or leathery, base rounded or obtuse, margins 1(–2)-serrate, teeth (18–)35(–42) per side, coarse, gland-tipped, apex usually acuminate, abaxial surfaces pale green, glabrous or pubescent to tomentose, sometimes sessile- and/or stipitate-glandular, adaxial darker green, dull, glabrous.

deciduous or semipersistent, 5–12 cm, membranous or leathery;

stipules persistent, adnate to petiole, auricles flared or erect, margins lacinulose, sometimes entire, eglandular or stipitate-glandular;

leaflets 3–9(–11), terminal: petiolule 5–16 mm, blade elliptic, ovate, elliptic-ovate, or obovate, 10–48(–70) × 8–27(–40) mm, abaxial surfaces glabrous or pubescent to tomentose, eglandular, sometimes glandular, adaxial dull or lustrous.

(1–)6(–15+)-flowered.

panicles, 1–6(–30+)-flowered.

15–25 mm, glabrous, stipitate-glandular;

bracts 1 or 2, narrowly lanceolate, 10–30 × 1–2 mm, margins short stipitate-glandular, surfaces glabrous, eglandular.

erect, slender, 5–25 mm, glabrous or pubescent, eglandular or stipitate-glandular;

bracts persistent, 1–3, margins lacinulose, stipitate-glandular.

functionally unisexual or monoecious, plants dioecious, 3–5 cm diam.;

hypanthium ovoid, 4–6 × 4–5 mm, stipitate-glandular;

sepals narrowly to broadly ovate-lanceolate, 10–18 × 2–4 mm, margins entire, tip 3–4 × 0.5–1 mm, abaxial surfaces pubescent, stipitate-glandular;

petals single, rose-purple to pink, fading to white, 18–25 × 16–25 mm;

stamens 212;

carpels 20–25, styles glabrous, exsert 5–6 mm beyond stylar orifice rims (0.5 mm diam.), hypanthial disc 2–3 mm diam.

1.5–5 cm diam.;

hypanthium ovoid, oblong, or urceolate, glabrous, eglandular or stipitate-glandular;

sepals persistent, reflexed, ovate-acuminate or -lanceolate, 6–18 × 1–4 mm, margins entire or (outer) pinnatifid, abaxial surfaces glabrous or pubescent, eglandular or stipitate-glandular;

petals single or double, pink, rose-purple, or white;

carpels 6–25, styles connate in columns, exsert 3–6 mm, sometimes ± free with age, glabrous or pilose, stylar orifice 0.5–2 mm diam., hypanthial disc conic, 2–4 mm diam.

bright red, subglobose to globose, 6–10 × 6–9 mm, firm, sparsely stipitate-glandular often undeveloped because of dioecy, then early deciduous.

red or orange-red, usually globose, sometimes ovoid or subglobose, (4–)5–10 × 5–9 mm, glabrous, eglandular or sparsely stipitate-glandular;

sepals late deciduous, reflexed.

17–22, fawn, 4–5 × 2.5–3 mm.

basiparietal.

= 14.