About Brickelliastrum fendleri (A.Gray) R.M.King & H.Rob.
Brickelliastrum fendleri is a perennial herb or subshrub that can grow to around 80 centimeters tall. It grows from fibrous roots and has woody caudices. This species has simple leaves that are most often oppositely arranged; the leaves are deltoid or triangular-ovate, with crenate-serrate to serrate margins, and truncate to cordate bases. It produces cymose panicles, each holding a small number of flower heads. Its bright white flowers distinguish it from the closely related similar species Brickellia grandiflora, which has cream or yellow colored flowers. Brickellia grandiflora also has a row of bracts around the outer calyx, a feature that Brickelliastrum fendleri does not have. Its fruit is a 5-ribbed cypsela, a structure that is often incorrectly called an achene. Brickelliastrum fendleri has been recorded growing in New Mexico, eastern Arizona, west Texas, and northern Mexico. It can be found in pine and mixed conifer woodlands, as well as on limestone boulders, ridgetops, sandstone bluffs, and in rock crevices. It grows at elevations ranging from approximately 6,000 to 9,500 feet, which is 1829 to 2896 meters. Its flowering period runs from July to October.
