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Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Citharexylum

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1 Leaves 14-150 (-200) mm long, 7-45 mm wide; [FL, TX]; [subgenus Citharexylum; section Citharexylum]
  2 Branchlets subterete; leaves 14-72 mm long; [TX].
  2 Branchlets 4-angled; leaves 45-150 (-200) mm long; [FL].
1 Leaves 2-25 mm long, 1-5 mm wide; [TX]; [subgenus Citharexylum; section Mexicanum].
    3 Leaves densely short-pubescent
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