[Rockcresses: The Genus Arabis in the Cascade Mountains of Oregon and Washington]

Canadian Rockcress, Drummond's Rockcress

Boechera stricta

Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii

Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii)

Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii)

Canadian rockcress as seen along the road with few-flowered rockcress (Boechera sparsiflora, in the photo at bottom right) at Lone Frank Pass, Okanogan-Wenatchee National Forest.......July 29, 2018.

Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii)

Drummond's rockcress as seen in Bullion Basin just east of Crystal Mountain Ski Resort, Baker-Snoqualmie National Forest..........August 26, 2014.

Maturing seed pods of Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Basal leaves of Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Stem leaves of Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii)

Additional close-up images of the fruits, basal leaves and stem leaves of Drummond's rockcress as seen in Bullion Basin just east of Crystal Mountain Ski Resort, Baker-Snoqualmie National Forest..........August 26, 2014.

Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii) - Canadian Rockcress, Drummond's Rockcress: Boechera stricta (Synonyms: Arabis albertina, Arabis brachycarpa, Arabis confinis, Arabis connexa, Arabis drummondii, Arabis drummondii var. connexa, Arabis drummondii var. oxyphylla, Arabis oxyphylla, Boechera angustifolia, Boechera brachycarpa, Boechera drummondii, Erysimum drummondii, Turritis drummondii)

Drummond's rockcress in bloom along the Goat Ridge Trail #95 about one mile or so north of the trailhead, Goat Rocks Wilderness.......July 12, 2018.

Erect fruits of Canadian Rockcress, Drummond's Rockcress: Arabis drummondii (Synonyms: Arabis albertina, Arabis connexa)

Drummond's rockcress as seen at the junction of the Pine Creek Trail #201, Onion Creek Trail #368, and Roads End Trail #201A, Strawberry Mountain Wilderness.........August 18, 2011. Note the wide, erect seed pods and the long stem with numerous overlapping leaves. Strawberry Mountain can be seen in the distance.

Paul Slichter