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DescriptionAnnual prostrate or climbing herb. Stems up to 5 m long, covered in bristly hairs. Leaves broadly ovate or subpentagonal in outline, more or less shallowly (3-)5-lobed, more or less densely bristly hairy, particularly on the veins below; margin with small sinuate teeth; petiole 2-11.5 cm long, covered in bristly hairs. Flowers unisexual, both sexes on the same plant, solitary or in 2-10-flowered clusters, yellow or pale orange, up to 2.5 cm in diameter. Fruits oblong-cylindric, up to 13 cm long, covered with stout fleshy spines, grey-green to orange yellow, often mottled, turning bright orange-red when ripe, edible.