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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 Gaillardia

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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]
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