Eschscholtz's Hairy Rockcress, Hairy Rockcress, Mountain Rockcress: Arabis eschscholtziana (Synonyms: Arabis hirsuta var. eschscholtziana, Arabis hirsuta var. glabrata, Arabis hirsuta) -
Cascade Rockcress, Columbia Gorge Rockcress, Fork-haired Rockcress: Arabis furcata var. furcata (Synonyms: Arabis furcata var. furcata, Arabis suksdorfii) -
Nuttall's Rockcress: Arabis nuttallii (Synonyms: Arabis bridgeri, Arabis macella, Erysimum nuttallii) -
Black-flowered Rockcress, Elegant Rockcress, Purple Sicklepod Rockcress, Sicklepod Rockcress: Boechera atrorubens (Synonyms: Arabis atrorubens, Arabis sparsiflora, Arabis sparsiflora var. atrorubens)
Lyall's Rockcress, Lyall's Slender Rockcress: Boechera lyallii (Synonyms: Arabis lyallii, Arabis lyallii var. lyallii, Arabis lyallii var. nubigena, Arabis murrayi) -
Littleleaf Rockcress, Little-leaf Rock Cress, Small-leaved Rockcress: Boechera microphylla (Synonyms: Arabis microphylla, Arabis microphylla var. macounii, Arabis microphylla var. microphylla, Boechera microphylla var. microphylla) -
Mount Adams Rockcress: Boechera paddoensis (Synonym: Arabis lemmonii var. paddoensis) -
Columbia Rockcress, Few-flowered Rockcress, Sicklepod Rockcress, Small-flowered Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) -
Dropseed Rockcress, Holboell's Rockcress: Boechera pendulocarpa (Synonyms: Arabis exilis, Arabis holboellii var. pendulocarpa) -
Holboell's Rockcress, Secund Rockcress: Boechera retrofracta (Synonyms: Arabis holboellii, Arabis holboellii var. retrofracta, Arabis holboellii var. secunda, Arabis retrofracta, Arabis secunda, Boechera holboellii, Boechera holboellii var. secunda) -
Elegant Rockcress, Sicklepod Rockcress: Boechera sparsiflora (Synonyms: Arabis arcoidea, Arabis peramoena, Arabis polytricha, Arabis sparsiflora, Arabis sparsiflora var. peramoena, Arabis sparsiflora var. sparsiflora, Boechera sparsiflora var. sparsiflora) - Pedicels in fruit spreading. Fruits ascending to spreading. Flowers pink to purplish, the petals 8-15 mm long. Plants 30-100 cm tall.
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) -
Woody Rockcress: Boechera suffrutescens (Synonyms: Arabis suffrutescens, Arabis suffrutescens var. suffrutescens) -
Tower Mustard, Tower Rockcress: Turritis glabra (Synonyms: Arabis glabra, Arabis glabra var. furcatipilis, Arabis glabra var. glabra) -