|Scientific Name||Castilleja citrina (Castilleja purpurea var. citrina)||USDA PLANTS Symbol||CAPUC|
|Common Name||Prairie Indian Paintbrush, Citron Paintbrush||ITIS Taxonomic Serial No.||527212|
|Family||Orobanchaceae (Broomrape)||Wildflower Center Ref.||Click Here|
Habitat: Dry, rocky caliche soils of grassy open areas, prairies and roadsides.
Plant: Erect, clump-forming perennial 6-18 inches tall with unbranched stems; herbiage covered with soft hairs.
Leaves: Alternate, sessile, linear to lanceolate, 1-1/4 to 2-1/2 inches long, with 1 or 2 pairs of narrower linear lateral lobes.
Inflorescence: Showy elongated terminal spike consisting of leaf-like bracts subtending flowers. Bracts broader and shorter than the leaves; greenish becoming greenish-yellow to bright yellow, or they are entirely so colored; with 1 or 2 pairs of lateral lobes, the main central lobe wider than the linear-lanceolate side lobes. Narrow calyx tube has similarly-colored lobes enclosing the yellow-green two-lipped tubular corollas. Protruding corollas are two-lipped, an upper green hood-like lip and slightly flaring lower lip; protruding style and yellow stigma.
Bloom Period: March to May.
References: "Wildflowers of the Texas Hill Country" by Marshall Enquist, "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Shinners & Mahler’s Flora of North Central Texas" by Diggs, Lipscomb and O’Kennon, Review of the Castilleja purpurea complex by Nesom and Egger and Flora of North America.
|BONAP Distribution Map
Map Color Key
Banner photo of Lupinus ssp. by Rick Capozza, Austin TX
© Tom Lebsack 2023