Symphyotrichum eulae
(Texas Aster)
Symphyotrichum eulae, South Guadalupe Trail, Canyon Lake, Comal Co. 3495
Symphyotrichum eulae, South Guadalupe Trail, Canyon Lake, Comal Co. 3517
Symphyotrichum eulae, South Guadalupe Trail, Canyon Lake, Comal Co. 3520
Symphyotrichum eulae, South Guadalupe Trail, Canyon Lake, Comal Co. 3499
Symphyotrichum eulae, South Guadalupe Trail, Canyon Lake, Comal Co. 3523
Symphyotrichum eulae, South Guadalupe Trail, Canyon Lake, Comal Co. 3504
| Scientific Name | Symphyotrichum eulae (Aster eulae) | USDA PLANTS Symbol | SYEU |
| Common Name | Texas Aster, Eula's American Aster | ITIS Taxonomic Serial No. | 522203 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description | Habitat: Partial-shaded, heavy soils along banks, ditches, drainage systems, disturbed areas, hedgerows. Plant: Perennial up to 5 ft. tall, colony-forming from rhizomes; erect single or a few stems with small spreading or ascending branches; stems are smooth; head-bearing branchlets (peduncles) less than 1-1/4 inches long. Leaves: Lower leaves wither before flowering; leaves along upper stem are alternate, elliptic to oblanceolate and 0.6 to 1.2 inches long and about 0.1 to 0.2 inch-wide; leaves on head-bearing branches are linear or linear-lanceolate and 1/8 to 1/4-inch long; margins are entire. Inflorescence: Open, panicle-like arrays with small leafy branchlets bearing composite flower heads, each head about 1-inch across with 27 to 36 white rays and 25 to 31 yellow disk florets in the center, turning reddish brown with age; hemisphere-shaped involucre has 5 to 6 layers of green/white phyllaries of unequal length that are smooth and slightly spreading, leaflets below grade into phyllaries. Bloom Period: October and November. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, Flora of North America, and iNaturalist. |
BONAP Distribution Map Map Color Key |
Texas Status: Native Texas Endemic |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2024