Machaeranthera tanacetifolia

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Scientific Name Machaeranthera tanacetifolia USDA PLANTS Symbol
Common Name Tansy-leaf Aster, Tahoka Daisy ITIS Taxonomic Serial No.
Family Asteraceae (Sunflower) SEINet Reference
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.
Texas Status

© Tom Lebsack 2019