Flora of North America species comparison

glabrous or glabrate, sometimes rooting at nodes.

petiole 1–5 cm;

blade 5–10 × 4–9 cm, base cordate with broad sinus, apex acute, mucronate, adaxial surface with 3–8 glands.

blade broadly ovate to rounded-cordate, subreniform, or deltate, unlobed or palmately 5-angular or -lobed, lobes deltate or triangular to broadly angular-elliptic, margins denticulate, adaxial surface with circular, sessile scales [hirsute to hirsutulous], often with glands on both sides of midrib near petiole.

staminate flowers solitary, [clustered, racemose, or in spikes], axillary;

pistillate flowers solitary, axillary [racemose];

bracts absent.

1–5 cm.

sepals recurved, 2–5 mm;

petals 15–20 mm, apices acute to obtuse-apiculate.

hypanthium campanulate to turbinate;

sepals 5, linear to subulate;

petals 5, connate 1/2 length, bright white, often slightly green-veined [brownish yellow or orange], ovate to ovate-triangular, [8–]15–20[–62] mm, hirtellous or puberulent-hirtellous to glabrate, corolla campanulate.

stamens 3;

filaments inserted near hypanthium base, connate; thecae connate into central column and forming central oblong body, sigmoid-triplicate, connective broadened;

pistillodes absent.

ovary 3-locular, ovoid to fusiform;

ovules ca. 15–40 per locule;

style 1, narrowly columnar;

stigma 1, 3-lobed;

staminodes 3.

pepos, usually green with white streaks or lines, sometimes red to scarlet at maturity, broadly cylindric to ellipsoid-cylindric, smooth, glabrous, indehiscent, flesh whitish to greenish.

6–8 mm, aril red to red-orange.

30–50[–120], asymmetrically pyriform [ovoid or broadly ellipsoid], compressed, arillate, margins thickened or not bordered, surface fibrillose.

climbing, widely spreading, sometimes prostrate.

2.5–6 cm.

= 12.

= 24.