2024 Edition • Get the App • Cite this Page
X

Colors

Data mode

Account

Login
Sign up

Collapse this

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
(0.06¢/key line)
Donate $30 per month
(0.13¢/key line)
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 Gaillardia

Copy permalink to share

1 Receptacle naked, lacking well-developed setae (if setae present, < 1 mm long).
  2 Leaves all basal; leaf blades glabrous or very sparsely villous; [OK and TX]
  2 Leaves basal and on the stem; leaf blades finely rough-hairy (scabrellous).
    3 Disk flowers white; [e. TX]
    3 Disk flowers brown, reddish brown, or yellow.
      4 Disk flowers yellow; ray flowers usually present, yellow
      4 Disk flowers brown or reddish brown; ray flowers present or absent, when present usually largely red, orange, or purplish
        5 Heads short-pedunculate; rays present
        5 Heads long-pedunculate; rays present or absent
1 Receptacle with well-developed setae 1.5-6 mm long.
          6 Setae of the receptacle (2-) 3-6+ mm long; perennial, with leaves basal and cauline at time of flowering
          6 Setae of the receptacle 1.5-3 mm long; annual or perennial, with leaves all or mostly cauline at time of flowering
             7 Leaves fleshy; perennial or annual, strongly branching, the secondary branches spreading and therefore forming compact, rounded “bushes”; [widespread, primarily of coastal dunes and flats, NC south to FL, west to TX]
             7 Leaves herbaceous; annual, with secondary branches ascending.
               8 Mid-stem leaves strongly lobed; [s. and se TX]
               8 Mid-stem leaves entire to dentate; [widespread]