Texas
Wildbuds

Machaeranthera tanacetifolia

(Tansy-leaf Aster)

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Machaeranthera tanacetifolia, Palo Duro Canyon State Park, Armstrong Co. 9829

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Machaeranthera tanacetifolia, Canyon Rim Trail, Caprock Canyons State Park 7561

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Machaeranthera tanacetifolia, Terlingua Creek, Brewster Co. 5763

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Machaeranthera tanacetifolia, Santa Elena Canyon, Big Bend National Park 4523

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Machaeranthera tanacetifolia, Lubbock Lake Landmark, Lubbock Co. 2801

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Machaeranthera tanacetifolia, Lubbock Lake Landmark, Lubbock Co. 2517

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Machaeranthera tanacetifolia, Palo Duro Canyon State Park, Armstrong Co. 9832

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Machaeranthera tanacetifolia, Terlingua Creek, Brewster Co. 4766

Scientific Name Machaeranthera tanacetifolia USDA PLANTS Symbol MATA2
Common Name Tansy-leaf Aster, Tahoka Daisy ITIS Taxonomic Serial No. 38013
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Sandy soils; plains, grasslands, streambeds and disturbed areas.
Plant: Low, upright to widely sprawling annual, 4 to 16 inches tall, densely leafy.
Leaves: Alternate, deeply twice-pinnatisect; 2 to 5 inches long overall; spine-tipped and sticky with small hairs; upper leaves less divided.
Inflorescence: Solitary flower heads 1 to 2-1/2 inches across on peduncles up to 1-1/4 inches long; many leafy, recurved phyllaries with sticky hairs; blue-to-purple, narrow rays and yellow disk flowers.
Bloom Period: April to October.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and "Wildflowers of Texas" by Geyata Ajilvsgi.
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