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| Scientific Name | Helianthus annuus | USDA PLANTS Symbol | HEAN3 |
| Common Name | Sunflower, Common Sunflower | ITIS Taxonomic Serial No. | 36616 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description | Habitat: Dry soils, disturbed areas, fence rows. Widely distributed. Plant: Erect annual, widely branching 1-1/2 to 8 feet tall, rough, hairy stems. Leaves: Hairy, alternate, ovate leaves 2-1/2 to 10 inches long and nearly as wide on long petioles (stalks); cordate bases. Inflorescence: Bright yellow composite flower heads up to 4 inches across with 17 to 30 rays surrounding brown central disk florets. Bloom Period: May to October. References: "Wildflowers of the Texas Hill Country" by Marshall Enquist and SEINet. |
BONAP Distribution Map |
Texas Status: Native |
| Scientific Name | Helianthus maximiliani | USDA PLANTS Symbol | HEMA2 |
| Common Name | Maximilian Sunflower | ITIS Taxonomic Serial No. | 36653 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Habitat: Dry areas in prairies or moist areas along streams or in ditches. Plant: Erect perennial, single or multiple leafy unbranched stems 1 to 6 feet tall. Leaves: Alternate, lanceolate leaves pointed at both ends, usually 2 to 4 inches long, but can be longer; edges are entire (not lobed or toothed). Inflorescence: Bright yellow composite flower heads 1-1/2 to 3 inches across with 10 to 25 rays surrounding yellow central disk florets. Bloom Period: September and October. References: "Wildflowers of the Texas Hill Country" by Marshall Enquist. |
BONAP Distribution Map |
Texas Status: Native |
