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1 Inflorescence a spike; fruit an elongate achene, 2-lobed at the tip, each lobe tipped with reflexed spines; plant strongly odorous (garlicky or skunky) when fresh
..2 Stamens 4; style present; stigma capitate; berries red to orange or yellow; perennial herb (sometimes woody at the base), 0.4-2 m tall
..2 Stamens 8-13; style absent; stigma penicillate; berries black; woody vine, climbing or sprawling to 10 m long