Rocky Mountain Ankle-aster
Ionactis stenomeres (A. Gray) Greene is native to dry slopes, grassy ridges, and openings at 1700–2200 m in southeastern B.C., northeastern Washington, northern and central Idaho and adjacent Montana. Plants are 12–30 cm tall, have linear-lanceolate mid stem leaves (15–25(–30) mm long) with green margins,l and glandularfruit bodies (Nesom 2006 FNA). The species was first described as Aster stenomeres A. Gray.
1-3. Ionactis stenomeris. 1. Habit, Semple & Brouillet 7055, Blaine Co., Idaho. 2-3. Leaves and flowering head, Semple & B. Semple 11364, Blaine Co., Idaho. 4. Range map.
Last updated 28 March 2025 by J.C. Semple
© 2025 J.C. Semple, including all photographs unless otherwise indicated