Common Name: Aster Family:Asteraceae, Sunflower Family
Duration: Annual or biennial Size: Plus or minus 2 feet Growth Form: Forb/herb; taprooted. Stems erect, much branched (when well developed), moderately to densely hairy, usually stipitate-glandular.
Leaves: Green or greenish-gray; fern-like 3 inches or more, hairy; glandular, sticky; lower leaves deeply pinnately dissected, upper leaves linear, tiny spines on tips of leaves. Flower Color: Blue, violet or purple Flowering Season: March to November depending on species. Responds to summer monsoon rainfall.
Comments: The genus Machaeranthera, in general is a genus found primarily in the western parts of North America. See also Tansyleaf Tansyaster, Machaeranthera tanacetifolia and Mesa Tansyaster, Machaeranthera tagetina,