Texas Wildbuds
Hibiscus martianus
(Heartleaf Rosemallow)
Hibiscus martianus, Falcon State Park, Starr Co. 4278
Hibiscus martianus, Falcon State Park, Starr Co. 4290
Hibiscus martianus, Falcon State Park, Starr Co. 4281
Hibiscus martianus, Falcon State Park, Starr Co. 4284
Hibiscus martianus, Falcon State Park, Starr Co. 4279
| Scientific Name | Hibiscus martianus (Hibiscus cardiophyllus) | USDA PLANTS Symbol | HIMA6 |
| Common Name | Heartleaf Rosemallow, Heartleaf Hibiscus | ITIS Taxonomic Serial No. | 502998 |
| Family | Malvaceae (Mallow) | SEINet Reference |
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| Description | Habitat: Dry, often rocky, limestone or sandy soils in scrublands and open woods. Plant: Perennial 12 to 24 inches tall (or taller), stems covered with stellate (star-shaped) and woolly hairs, older twigs gray, smoother. Leaves: Broadly ovate with a cordate base, 3/4 to 3-1/8 inches long and slightly less wide; unlobed or shallowly 3-lobed margins are irregularly dentate or dentate-serrate; lower surface densely tomentose (woolly), upper less so; petiole nearly as long as blade. Inflorescence: Solitary flowers in upper leaf axils; flowers about 2 inches across, 5 bright red to deep rose-red petals, bright red stamen column with yellow-orange anthers; protruding red styles and stigmas. Bloom Period: Year-round. References: Flora of North America, iNaturalist and "Wildflowers of Texas" by Michael Eason; and H. cardiophyllus in "Manual of the Vascular Plants of Texas" by Correll and Johnston. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2026
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