| Species | Life Cycle | Seta | Stem | Androecium | Penduncle | Fruit Flesh | Funicular attachment of seed | Seed Margin |
|---|---|---|---|---|---|---|---|---|
| C. pepo | Annual | spiculate | hard, angular | short, thick, conical | hard, angular ridged | coarse-grained | obtuse symmetrical | smooth, obtuse |
| C. moschata | Annual | lacking | moderately hard, smoothly angled | long, slender columnar | hard, smoothly angular, flared | fine-grained or coarse with gelantinous fibers | obtuse, slightly asymmetrical | scalloped, obtuse |
| C. argyrosperma | Annual | lacking | hard, angular | long, slender, columnar | hard, basically angular, but enlarged by hard cork | coarse-grained | obtuse, slightly asymmetrical | barely, scalloped, acute |
| C. maxima | Annual | moderately spiculate | soft, round | short, thick, columnar | soft, round, but enlarged by soft cork | fine grained | acute, asymmetrical | smooth, obtuse |
From: Whitaker, T. W. and G. W. Bohn. 1950. The Taxonomy, Genetics, Production, and Uses of the Cultivated Species of Curcurbita. Econ. Botany 4(1) 52-81.