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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
(0.02¢/plant image)
Donate $30 per month
(0.05¢/plant image)
Donate $50 per month
(amazing!)
Donate another
or one-time amount

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 Pyrus

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1 Pome pyriform (pear-shaped!); pome with the sepals persistent; flowers 2.5-3 cm across; styles 5
1 Pome subglobose; pome with sepals caducous (or persistent in P. serrulata); flowers either 1.5-3.5 cm across; styles 2-5.
  2 Pome 3-10 cm in diameter; styles (4-) 5; flowers 2.5-3.5 cm in diameter
  2 Pome 0.5-1 cm in diameter; styles 2-4; flowers 1.5-2.5 cm in diameter.
    3 Pome 1.5-2.2 cm in diameter; styles 3 (-4); pome with sepals persistent
    3 Pome 0.5-1.2 cm in diameter; styles 2-3 (-4); pome with sepals caducous.
      4 Pome 0.5-1.0 cm in diameter; styles 2-3; leaf margins sharply serrate; pedicels tomentose, becoming glabrate; leaves tomentose when young, becoming glabrous above when older, but the lower surface retaining some hairiness (glabrate)
      4 Pome 0.8-1.2 cm in diameter; styles 2 (-4); leaf margins serrate-crenate; pedicels glabrous