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Key to Didiclis

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1 Main stems creeping or ascending; stems only slightly it at all differentiated in thickness from base to apex of plant; rhizophores 0.02-0.4 mm in diameter.
1 Main stems erect, the plants to 5 dm tall, or climbing and to 10 m long; stems noticeably differentiated in thickness from the main stem (base of plant) to the terminal branches; rhizophores 1-3 mm in diameter.
  2 Stems erect to 5 dm tall; stems with dense, stiff hairs; median leaves long-acuminate to bristle-tipped
  2 Stems vinelike, climbing, to 10 m tall or long; stems lacking hairs; median leaves acute