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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
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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 Lachnocaulon

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image of plant
Show caption*© Jay Horn
1 Trichomes at the tips of the receptacular bracts milky white, opaque, the head therefore appearing gray to white, obscuring the brown color of the bractlets.
image of plant
Show caption*© Scott Ward
  2 Mature heads 4-7 mm across; seeds obviously longitudinally striate (as seen at 10× magnification); scapes pilose throughout
image of plant
Show caption*© Jay Horn, some rights reserved (CC BY), uploaded by Jay Horn
  2 Mature heads 3.5-4 mm across; seeds not obviously longitudinally striate, the striations obscure and very fine (not visible at 10× magnification); scapes glabrous (or nearly so) distally
image of plant
Show caption*© Jay Horn
1 Trichomes at the tips of the receptacular bracts translucent, the head therefore showing the brown color of the bractlets.
image of plant
Show caption*© Jay Horn
    3 Scape with ascending hairs
image of plant
Show caption*© Jay Horn
    3 Scape glabrous (or with a few trichomes).
image of plant
Show caption*© Edwin Bridges
      4 Leaves 0.5-1 (-2) cm long; head light brown, usually globose; carpels 2
image of plant
Show caption*© Jay Horn
      4 Leaves 2-3 cm long; head reddish- or dark brown, usually elongate-cylindric; carpels 3