Trixis californica
(American Threefold)
Trixis californica, Sierra de Chino, River Road West, Big Bend NP 1944
Trixis californica, Old Ore Road, Big Bend National Park 7606
Trixis californica, Old Ore Road, Big Bend National Park 7596
Trixis californica, Black Gap Road, Big Bend National Park 0679
Trixis californica, Black Gap Road, Big Bend National Park 0667
Trixis californica, Old Ore Road, Big Bend National Park 7617
Trixis californica, Black Gap Road, Big Bend National Park 0687
| Scientific Name | Trixis californica | USDA PLANTS Symbol | TRCA8 |
| Common Name | American Threefold | ITIS Taxonomic Serial No. | 38580 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description | Habitat: Dry, gravelly soils, rocky areas below 5000 ft. Plant: Perennial shrub up to 3 feet tall and wide. Leaves: Elliptic, lanceolate, linear, or linear-lanceolate leaves up to 2 inches long, growing almost parallel to the stems; margins somewhat dentate or entire; bottom surface densely gland-dotted, upper may be smooth, somewhat hairy and gland-dotted. Inflorescence: Rayless flower heads are 3/4-inch across; each floret has two asymmetrical lips with one larger than the other, each with small teeth at ends; brush-like seed heads. Bloom Period: May to October (following rains). References: Vascular Plants of the Gila Wilderness and "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 2024