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Support the Flora of the Southeastern US

2024 has been a banner year for making the best flora we can imagine. We've created:
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
  • Add Global Conservation Ranks (GRanks) vote
  • Professional graphic keys (polyclaves) to individual families/genera vote
  • 2 new FloraQuest apps: Florida & Mid-South vote
  • Image overlays highlighting diagnostic characters with arrows vote
  • iNaturalist integration in FloraQuest vote
Write-in vote: vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
Donate $15 per month
(0.2¢/heliophily index)
Donate $30 per month
(0.4¢/heliophily index)
Donate $50 per month
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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 Manihot

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1 Shrubs or trees, 1-6 (-7) m tall; inflorescences paniculate; [exotic, e. TX eastwards].
  2 Leaf lobes 3-7, each broadest toward the tip, narrowing evenly toward the acuminate apex; calyx of male flowers < 10 mm long; fruit wing-angled
  2 Leaf lobes 9-13, each constricted near the tip and then broadening again; calyx of male flowers 12-15 mm long; fruit not winged
1 Herbs or shrubs, < 1.5 m tall; inflorescences racemose; [native, se. and s. TX in our region].
    3 Leaf lobe apices acuminate
    3 Leaf lobe apices acute, obtuse, or rounded