Coefficient of Conservatism:
Coefficient of Wetness:
DRUMMOND ROCK CRESS
R. W. Smith
Arabis drummondii of Michigan Flora.
Forests (oak, aspen, jack pine, or beech-maple), often in slightly disturbed areas; thickets on dunes; rocky openings (Isle Royale).
When the distinctive appressed fruiting habit is not yet developed, this species may be confused with B. laevigata, which also has a glabrous stem at the base, but in the latter the leaf margins are glabrous or with simple hairs, compared to the branched ones of B. stricta.
The aspect of the fruiting plant is like that of Turritis glabra, which is more pubescent at the base (especially stellate-pubescent on basal leaves) and has sepals much more than half as long as the petals. There is also some habitat difference; T. glabra is characteristic of dry open areas with bracken, blueberry, sweet-fern, and scattered aspen or jack pine, whereas B. stricta is more characteristic of openings or slightly disturbed ground in forests.