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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:
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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 Eurybia, Key C: Eurybia asters XXX

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1 Leaves obviously veined beneath, usually toothed, hairy on the undersurface; [subgenus Eurybia, section Radulini].
  2 Larger leaves < 2.5 (-3.6) cm wide; rays purple; [of w. VA, WV, northward]
  2 Larger leaves > 4.0 cm wide; rays white to pale purple; [of the Cumberland Plateau of KY and n. TN]
1 Leaves very obscurely veined beneath, entire or nearly so, glabrous on the undersurface; [subgenus Eurybia, section Calliastrum].
    3 Ray florets 9-14; rays 5-15 mm long
    3 Ray florets 15-35; rays 10-25 mm long.
      4 Phyllaries slightly or not at all glandular-pubescent on the back (sometimes glandular-ciliate); involucre 7-12 mm high