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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
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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 Sorbus

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1 Branches and lower leaf surfaces densely white-villous; winter buds white-villous; [introduced tree]; [section Sorbus]
1 Branches and lower leaf surfaces glabrous (or inconspicuously and sparsely pubescent); winter buds glutinous; [native tree]; [section Commixtae]
  2 Leaflet blades 3.4-5.0× as long as wide, long-acuminate at the tip; pomes 4-7 mm in diameter, not glaucous fresh or dried; [south to ne. GA]
  2 Leaflet blades 2.4-3.2 (-3.6)× as long as wide, acute to short-acuminate at the tip; pomes (5-) 7-11 mm in diameter, often glaucous when dried; south to ne. PA, nw. PA, c. OH, n. IN, and ne. IL]