Machaeranthera tanacetifolia 

Tansy Aster - Machaeranthera tanacetifolia
Hillsboro, New Mexico
Photographs immediately above and below
April 9, 2014

Machaeranthera tanacetifolia was first described by Kunth in 1832.  

It is native to much of the southwestern United States.  The
BONAP map to the right shows the counties in the lower 48 of the United States where this species is native and not rare.  In Mexico, the species is found as far south as Zacatecas  (Aguascalientes, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Zacatecas).

Machaeranthera tanacetifolia is an annual which is typically found in lower to mid-elevations within the Black Range.

Its other English Common Names include Tahoka Daisy and Tanseyleaf Aster.  Scientific synonyms include Aster tanacetifolius, Machaerantehera coronopifolia, and M. parthenium.

White Sands Missile Range, New Mexico
Photograph immediately above and three below
September 21, 2019

© Robert Barnes 2015-2020