Machaeranthera

n.

1.

A genus of wildflowers of Western North America.

Thesaurus

Noun

1.

Machaeranthera - wildflowers of western North America genus Machaeranthera asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs aster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia Machaeranthera tanacetifolia, tahoka daisy, tansy leaf aster - wild aster with fernlike leaves and flower heads with very narrow bright purple rays; Alberta to Texas and Mexico Machaeranthera bigelovii, sticky aster - wild aster having leafy stems and flower heads with narrow bright reddish-lavender or purple rays; western Colorado to Arizona Machaeranthera tortifoloia, Mojave aster - wild aster having greyish leafy stems and flower heads with narrow pale lavender or violet rays; of rocky desert slopes California to Arizona and Utah