A hairy problem

Boechera stricta, May 19, 2022

B. stricta, May 28, 2022

Common & scientific name
Drummond’s rockcress, Boechera stricta

Family
Mustard, Brassicaceae

Location
Difficult Trail, 8,100’ & rock field 10,200’

Fun, weird, helpful, or little known fact

The Boechera genus is notoriously difficult to narrow down to species.  They interbreed, they vary within species, and often it’s the microscopic hairs on their leaves and the angle of repose of their siliques (seed pods) that make the difference.  This rockcress, often found under the name B. drummondii, which is tall and common on the Pass, especially in forests and at higher elevations, can be identified by the pick-axe hairs on its basal (ground-level) leaves, and its erect, stem-hugging siliques