Climber or trailer to 4 m.; rootstock tuberous; stems tough, herbaceous, shortly and usually rather thinly hairy.. Leaf-blade ovate-cordate in outline, hairy beneath, sometimes densely so, becoming scabrid-punctate above, 30–145 mm. long, 35–90 mm. broad, palmately 3–5-lobed, rarely unlobed and then ovate-triangular; lobes broadly elliptic-rhombic and narrowed below, or subtriangular and broadest at the base, subentire with small apiculate teeth or sometimes lobulate, acute to rounded and apiculate; petiole finely and shortly spreading-hairy, 8–165 mm. long.. Tendrils simple.. Probracts obovate-oblanceolate, ± 3 mm. long, acute.. Male flowers 1–6 together, sometimes on short leafless lateral branches and then appearing racemose; pedicels 5–65 mm. long; receptacle-tube broadly funnel-shaped, 3–5 mm. long; lobes ovate-lanceolate to filiform, recurved, 2–6 mm. long; corolla yellow, veined green, with the lobes 11–20 mm. long, 5–10 mm. broad, united in lower half or quarter; stamens 3.. Female flowers solitary on 6–20 mm. long stalks; ovary hairy, 11–22 mm. long, 2–5 mm. across; receptacle-tube 2–3.5 mm. long, densely glandular-hairy inside at the mouth; lobes filiform, recurved, 3–4 mm. long; corolla-lobes 18–20 mm. long, 8–10 mm. broad, united in lower half or more deeply parted so as to be almost free, or unequally so.. Fruit on a 14–28 mm. long stalk, bright red with green markings, ellipsoid, 54–89 mm. long, 22–43 mm. across.. Seeds pyriform in outline, slightly expanded at point of attachment, flattened, 7–7.5 × 2.5–3 × 1.5–2 mm.; margins rather thick, 2-grooved; testa fibrillose.
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A pumpkin family herb. It lies along the ground or can be a climber. The stems are slender. The leaves have 3-5 lobes.