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1. Ecballium elaterium (Linnaeus) A. Richard in J. B. Bory de Saint-Vincent et al., Dict. Class. Hist. Nat. 6: 19. 1824.
[F I]
Momordica elaterium Linnaeus, Sp. Pl. 2: 1010. 1753
Stems 15–80 cm. Leaves long-petiolate; blade bicolor, 4–10 cm, fleshy, abaxially lighter because of densely hirsute to hirsutulous vestiture. Staminate flowers 1 or 2–8 in racemes 5–35 cm. Pistillate flowers: peduncles erect, sharply recurved-nodding at apex so that mature fruit is pendent, 1–8 cm. Corollas (14–)18–20 mm diam.; petals 8–16 mm (staminate) or 6–14 mm (pistillate). Fruits 4–5.5 cm, pendulous on peduncles 1–8 cm. Seeds 4–5 mm. 2n = 18, 24.
Flowering Jun–Aug. Disturbed sites; 20–100 m; introduced; Ala., N.Y., Pa.; e, se, sw Europe; w Asia; n Africa; introduced also in w Europe (England), Australia.
Some, perhaps all, collections of Ecballium from New York and Pennsylvania may represent garden curiosities rather than escaped or established populations.
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