Flora of North America species comparison

climbing-twining, herbaceous, moderately to densely hirsute to hirsute-villous with spreading-deflexed hairs.

procumbent or creeping, rooting at nodes, sometimes climbing-sprawling but not twining, densely short-tomentose to hirsute-villous, hairs spreading to erect, irregularly oriented.

3, blades elliptic to broadly elliptic, oblong-elliptic, or lanceolate-elliptic, (10–)14–40(–50) × (5–)10–21(–25) mm, herbaceous, veins not raised, apex obtuse to rounded, surfaces sparsely strigose abaxially (often glaucous), minutely and sparsely short-strigose adaxially.

3, blades elliptic to broadly elliptic, (14–)20–55 × (10–)15–35 mm, herbaceous, thickened-leathery, veins not raised, apex rounded to truncate, commonly shallowly retuse, surfaces much darker adaxially, sparsely, persistently strigose-sericeous adaxially with loosely appressed hairs.

flowers solitary and axillary or 2–7(–9) in reduced pseudoracemes on distal 1/2–3/4 of axis;

axis 10–70(–150) mm.

flowers 5–12(–25) in pseudoracemes on distal 1/4–1/2 of axis, in fascicles;

axis 20–100(–130) mm.

calyx 4–6 mm, hirsute-villous;

corolla pink to rose, light violet, pink-purple, or rose-purple, 7–10 mm.

calyx 7–8 mm, villous, lobes greenish yellow to tan on inner surface when dry;

corolla not persisting after anthesis, pink to purple or rose-purple, lighter when dry, 12–15 mm.

straight, 20–50 × 3–5 mm, loosely strigose.

straight, 30–45 × 3–4(–5) mm, densely villous-hirsute.

5–9.

7–11.