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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
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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 Ceanothus

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1 Leaves 0.2-1.0 cm long, obovate
1 Leaves 2-10 cm long, elliptic to ovate.
  2 Inflorescences terminating leafy terminal shoots; leaves mostly obtuse to acute
  2 Inflorescences terminating leafless axillary shoots (these sometimes with leafy bracts distinctly smaller than normal leaves); leaves mostly acute to acuminate.
    3 Leaves 2-4 (-6) cm long, mostly 1-2 cm wide; [primarily of sandy habitats of the Coastal Plain and rarely Piedmont]
    3 Leaves (3-) 4-10 cm long, mostly 2.5-6 cm wide; [of various habitats of the Piedmont, Mountains, and rarely Coastal Plain]
      4 Lower surface of leaves persistently and densely short-hairy; leaves obtuse to subacute
      4 Lower surface of leaves glabrous or with scattered hairs mainly on the main veins; leaves acute to acuminate