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| Scientific Name | Tetraneuris linearifolia var. linearifolia (Hymenoxys linearifolia) | USDA PLANTS Symbol | TELIL |
| Common Name | Fine-leaf Four-nerved Daisy | ITIS Taxonomic Serial No. | 531245 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Habitat: Dry areas, roadsides, hillsides, pastures, edges of woods and open areas. Plant: Upright, slender perennial with stems 6 to 16 inches tall, becoming branched in age. Leaves: Spatulate basal leaves may have lobes and a couple of teeth on edges; thin, linear stem leaves, all somewhat hairy and with glands. Inflorescence: Bright yellow solitary flower heads atop naked peduncles 1 to 6 inches long; each flower head about 1-3/4 inch across with 9 to 20 rays toothed at tips; heads becoming smaller through the season; hairy phyllaries beneath. Bloom Period: March to June. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of the Texas Hill Country" by Marshall Enquist, Vascular Plants of Williamson County and SEINet. Notes: The yellow-white blossom seen below is very unusual and was the only one found in a field at the Wildflower Center in Austin amid plot of hundreds of plants with yellow blossoms. |
BONAP Distribution Map |
Texas Status: Native |
| Scientific Name | Tetraneuris scaposa var. scaposa (Hymenoxys scaposa var. scaposa) | USDA PLANTS Symbol | TESCS |
| Common Name | Four-nerved Daisy, Plains Yellow Daisy | ITIS Taxonomic Serial No. | 530628 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description | Habitat: Dry, gravelly soils along roadsides, hillsides, pastures, open areas, edges of woods. Plant: Upright, slender perennial with a few to many stems 5-1/2 to to 16 inches long; stems are somewhat hairy. Leaves: Crowded near the base, linear, linear-oblanceolate, oblanceolate, or (rarely) spatulate blades up to 3 inches long, entire edges or with a couple of small lobes; surfaces with glands sunken in pits (usually) and smooth or covered with long soft hairs. Inflorescence: Solitary head on long, erect peduncle, 0.8 to 1.4 inches across, with a dozen or so bright yellow rays with toothed tips; veins (nerves) green or sometimes purplish-brown (var. villosa, see below); 30 or more darker yellow disk flowers; cup–shaped, hairy involucre with about 20 phyllaries in 2 subequal series; outer phyllaries are broadly lanceolate. Bloom Period: April and May and again September and October. References: "Wildflowers of Texas" by Geyata Ajilvsgi, Vascular Plants of Williamson County, Flora of North America and American Southwest. |
BONAP Distribution Map |
Texas Status: Native |
| Scientific Name | Tetraneuris scaposa var. villosa (Hymenoxys scaposa var. villosa) | USDA PLANTS Symbol | TESCV |
| Common Name | Four-nerved Daisy, Plains Yellow Daisy | ITIS Taxonomic Serial No. | 530629 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
N/A |
| Description | Habitat: Dry, gravelly soils along roadsides, hillsides, pastures, open areas, edges of woods; southeast portions of the Trans-Pecos and western Edwards Plateau. Plant: Upright, slender perennial with a few to many stems 5-1/2 to to 16 inches long; stems are somewhat hairy. Leaves: Crowded near the base, linear, linear-oblanceolate, oblanceolate, or (rarely) spatulate blades up to 3 inches long, entire edges or with a couple of small lobes; surfaces slightly gland-dotted and covered with long soft hairs. Inflorescence: Solitary head on long, erect peduncle, 0.8 to 1.4 inches across, with a dozen or so bright yellow rays with toothed tips and purplish-brown veins (nerves); 30 or more darker yellow disk flowers; cup–shaped, hairy involucre with about 20 phyllaries in 2 subequal series; outer phyllaries are broadly lanceolate. Bloom Period: April and May and again September and October. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston. Note: None of my usual references recognize villosa as a separate variant, except for Correll and Johnston and USDA Plants. |
BONAP Distribution Map N/A |
Texas Status: Native |
