Flora of North America species comparison

4–10, decumbent, often branched near base, 7–40 cm, hirsute with long eglandular and minute glandular trichomes.

1–10, twining, 10–150 cm, retrorse-puberulent with curved, eglandular trichomes and inconspicuously glandular-hirtellous to glabrate.

1 or 2 colleters on each side of petiole;

petiole 0.5–2.5 cm, hirsute with long eglandular and minute glandular trichomes;

blade ovate to deltate, 0.8–5 × 0.6–3.2 cm, base shallowly to deeply cordate, with 0–2 laminar colleters, apex acute (rounded), surfaces hirsute with long eglandular and minute glandular trichomes, especially so on veins abaxially.

with 0–2 colleters on each side of petiole;

petiole 0.2–1 cm, sparsely puberulent with curved, eglandular trichomes and inconspicuously glandular-hirsutulous;

blade deltate to lanceolate or ovate, 0.5–2.5 × 0.2–1.3 cm, base shallowly to deeply cordate, with 2–4 laminar colleters, apex acute, surfaces sparsely puberulent with curved, eglandular trichomes and inconspicuously glandular-hirtellous (mostly on veins) to glabrate.

solitary, umbelliform, extra-axillary, sessile or subsessile, 1–2-flowered.

solitary, umbelliform, extra-axillary, sessile or subsessile, 1–4-flowered.

3–11 mm, hirsute with long eglandular and minute glandular trichomes.

1–5 mm, puberulent with curved, eglandular trichomes and inconspicuously glandular-hirtellous.

calyx lobes spreading, oval to ovate, 1.8–2.5 mm, apex rounded or acute, hirsute with long eglandular and minute glandular trichomes;

corolla maroon to dark brown, not reticulate, rotate-campanulate, tube 1–1.5 mm, lobes spreading, ovate to narrowly deltate to spatulate, 3–6 mm, margins usually reflexed, pilose to hirsute adaxially;

corona united to corolla and column near base, composed of 5 united segments forming a ring at base, each with an adaxial incurved appendage arching above or incumbent on anthers, equaling or exceeding style apex, maroon to dark brown, 1–1.5 mm, glabrous;

apical anther appendages white, maroon to brown at base, broadly deltoid;

style apex rounded, flat.

calyx lobes ascending, linear to linear-lanceolate, 2–3 mm, apex acute, sparsely puberulent with curved, eglandular trichomes and inconspicuously glandular-hirtellous to glabrate;

corolla green to yellow-green, not or very faintly reticulate, campanulate, tube 0.5–1 mm, lobes ascending, linear, 5–10 mm, apex often twisted, glabrous;

corona cup-shaped, apex undulate, with 5 paler appendages opposite anthers, exceeded by style apex, green, cream, or yellowish, 0.5–0.7 mm, glabrous;

apical anther appendages white, deltoid;

style apex yellow, pentagonal-lobed, flat to broadly convex.

tan to light brown, oval to nearly orbicular or ovate, 8–11 × 7–10 mm, margins broadly winged, chalazal end erose, faces minutely rugose;

coma 2.5–4 cm.

tan, ovate, 5–7 × 4–5 mm, margins winged, chalazal end minutely erose, faces rugulose;

coma 2–3 cm.

not striate, ellipsoid to ovoid, 4.5–8.5 × 1.8–3.5 cm, apex acute, densely muricate (more than 1 protrusion per cm of length), villous to hirsute with long eglandular and minute glandular trichomes.

gray to maroon or purplish striate, lance-ovoid, 6–7 × 1–2 cm, apex acuminate, smooth to very sparsely tuberculate, mostly on lower half, minutely puberulent to glabrate.

, suffrutescent, not corky.