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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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(0.02¢/plant image)
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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 Chaerophyllum

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1 Umbellets 6-20 per umbel; biennials, 3-20 dm tall.
  2 Umbellets 15-20 per umbel
  2 Umbellets 6-12 per umbel
1 Umbellets 2-3 per umbel; annuals, 2-9 dm tall.
    3 Fruits 4-5× as long as wide; ribs of the fruit broad, the intervals between the ribs much narrower than the ribs; pedicels expanding upwards in diameter; stem and leaf surfaces mostly pilose
    3 Fruits 2-3× as long as wide; ribs of the fruit narrow, the intervals between the ribs equal to or wider than the ribs; pedicels mostly uniform in diameter; stem and leaf surfaces essentially glabrous.
      4 Fruit glabrous, 6-10 mm long, 1.5-2 mm broad
      4 Fruit densely and finely puberulent, 4.5-6.5 mm long, 2-2.5 mm broad