Vegetative key to the families

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Remaining groups
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Plants climbing
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Leaves opposite
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Prickles present on the stems
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Stems rounded. Leaves with 3 main veins Ripogonaceae
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Branches pubescent; prickles absent. Leaves ovate to narrow-ovate, 8–20 cm long, cordate at the base, on short petioles or almost sessile, acuminate. Coast and adjacent plateaus. WSF and RF Ripogonum fawcettianum
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Branches glabrous, the larger ones with prickles. Leaves ovate to narrow-ovate, 8–15 cm long, narrowing towards the base, with a twisted petiole, shortly acuminate. Widespread. RF Ripogonum album