Heterotheca zionensis Semple is the common species in much of Utah. It was first described from near Zion National Park in southern Utah. The leaves have a high density of short strigose hairs and are also glandular. The leaves can be grayish green to whitish due to the high density of hairs.
Last update 19 May 2023 by J.C. Semple
© 2023 J.C. Semple, including all photographs unless otherwise indicated