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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
(0.06¢/key line)
Donate $30 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 Dipsacus

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1 Principal (lower) stem leaves laciniate-pinnatifid, cut at least halfway to the midrib; stems to 3 (-4) m tall
1 Principal (lower) stem leaves entire or toothed; stems to 2 (-3) m tall.
  2 Bracts on the receptacle 7-30 mm long, with straight apical spines, these stiff but flexible; bracts of the involucre 1-13 cm long, curved upward
  2 Bracts on the receptacle 12-14 mm long, with recurved apical spines, these rigid; bracts of the involucre 1-5 cm long, spreading more or less horizontally