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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:

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 Habenaria

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1 Lip or lateral petals divided into linear segments; lip strongly 3-lobed.
  2 Spur 0.4-1.7 cm long.
    3 Leaves essentially basal, broadly elliptic, 6-15 cm long × 2-5 cm wide (ca. 3× as long as wide), rapidly reduced upwards (with a few, much smaller leaves on the stem); [terrestrial, though in moist habitats]
    3 Leaves cauline, scattered along the stem, lanceolate, 3-25 cm long × 1-4.5 cm wide (the larger > 4× as long as wide), gradually reduced upwards; [aquatic or semi-aquatic in marshes and swamps]
  2 Spur 5-25 cm long.
      4 Lateral petals with distal division 20-24 mm long, > 2× as long as the proximal division (8-11 mm long); spur usually > 10 cm long (but some populations with shorter spurs); [of rich, mesic hardwood hammocks]
      4 Lateral petals with distal division 10-18 mm long, < 2× as long as the proximal division (6-9 mm long); spur usually < 10 cm long (but some populations with longer spurs); [of pinelands and open to semi-open, disturbed areas]