''Gaillardia coahuilensis'', the bandanna daisy, is a North American species of flowering plant in the
sunflower family. It is native to northwestern Mexico (
Coahuila) and the southwestern United States (western
Texas
Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...
).
''Gaillardia coahuilensis'' grows in
calcareous soil
Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines.
In zoology
''Calcareous'' is used as an adj ...
s. It is an annual herb up to tall, with leaves at the base and also higher on the stem. Each flower head is on its own flower stalk up to long. Each head has 5-10 2-colored ray flowers (red, yellow, or orange close to the center of the head, orange or yellow farther away from the center). These surround 40-100 yellow or reddish disc flowers.
[Turner, B. L. 1977. A new species of ''Gaillardia'' (Asteraceae-Heliantheae) from northcentral Mexico and adjacent Texas. Southwestern Naturalist 21: 539–541.]
References
coahuilensis
Flora of Coahuila
Flora of Texas
Plants described in 1977
Taxa named by Billie Lee Turner
{{Helenieae-stub