[The Mustard Family in the Cascade Mts. of Oregon and Washington]

Rockcresses of the Cascade Mountains of Oregon and Washington

The Genera Arabis, Boechera and Turritis

Black-flowered Rockcress, Elegant Rockcress, Purple Sicklepod Rockcress, Sicklepod Rockcress: Boechera atrorubens (Synonyms: Arabis atrorubens, Arabis sparsiflora var. atrorubens, Arabis sparsiflora)

Purple sicklepod rockcress: Boechera atrorubens

Updated February 17, 2020.

Waldo Rockcress: Arabis aculeolata (Synonym: Arabis aculeolata var. aculeolata) -

Eschscholtz's Hairy Rockcress: Arabis eschscholtziana (Synonyms: Arabis hirsuta var. eschscholtziana, Arabis hirsuta var. glabrata, Arabis hirsuta) -

Cascade Rockcress, Columbia Gorge Rockcress, Fork-haired Rockcress: Arabis furcata (Synonyms: Arabis furcata var. furcata, Arabis suksdorfii) -

Lyre-leaved Rockcress, Kamchatka Rockcress, Western Rockcress: Arabis lyrata var. occidentalis (Synonym: Arabis lyrata)

Rogue Canyon Rockcress, Modest Rockcress: Arabis modesta (Synonym: Arabis oregana var. modesta) - ?

Oregon Rockcress: Arabis oregana (Synonyms: Arabis oregana var. oregana Arabis purpurascens) -

Sharp-podded Rockcress: Boechera acutina (Synonym: Arabis acutina, Arabis divaricarpa, Arabis divaricarpa var. divaricarpa, Arabis divaricarpa var. interposita, Arabis xdivaricrpa, Arabis xdivaricarpa var. interposita)

Black-flowered Rockcress, Elegant Rockcress, Purple Sicklepod Rockcress, Sicklepod Rockcress: Boechera atrorubens (Synonyms: Arabis atrorubens, Arabis sparsiflora var. atrorubens, Arabis sparsiflora) -

Coville's Rockcress, Howell's Flatseed Rockcress: Boechera covillei (Synonyms: Arabis covillei, Arabis platysperma, Arabis platysperma var. howellii)

Cusick's Rockcress: Boechera cusickii (Synonym: Arabis cusickii) -

Spreading Pod Rockcress, Spreading Rockcress: Boechera divaricarpa (Synonyms:Arabis divaricarpa, Arabis xdivaricarpa, Arabis xdivaricarpa var. divaricarpa, Arabis drummondii var. interposita, Arabis drummondii x holboellii) -

Soldier Rockcress: Boechera drepanoloba (Synonym: Arabis lemmonii var. drepanoloba)

Hell's Canyon Rockcress: Boechera hastatula (Synonym: Arabis hastatula) -

Crater Lake Rockcress, Woody Rockcress: Boechera horizontalis (Synonyms: Arabis horizontalis, Arabis suffrutescens, Arabis suffrutescens var. horizontalis) -

Lemmon's Rockcress: Boechera lemmonii (Synonyms: Arabis lemmonii, Arabis lemmonii var. lemonii -

Lyall's Rockcress, Lyall's Slender Rockcress: Boechera lyallii (Synonyms: Arabis lyallii, Arabis lyallii var. lyallii, Arabis lyallii var. nubigena, Arabis murrayi) -

Small-leaved Rockcress, Littleleaf 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: Boechera pinetorum (Synonyms: Arabis holboellii, Arabis holeboellii var. pinetorum, Boechera holboellii) -

Broad-seeded Rockcress, Pioneer Rockcress: Boechera platysperma (Synonyms: Arabis platysperma, Arabis platysperma var. platysperma)

Many-flowered Rockcress: Boechera polyantha (Synonyms: Arabis holboellii, Arabis holboellii var. retrofracta, Boechera holboellii)

Meadow Rockcress: Boechera pratincola (Synonym: Arabis xdivaricarpa)

Blue Mountain Rockcress, Hoary Rockcress: Boechera puberula (Synonym: Arabis puberula) -

Bristly-leaved Rockcress: Boechera rectissima (Synonym: Arabis rectissima, Arabis rectissima var. rectissima -

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, Slender Rockcress: Boechera sparsiflora (Synonyms: Arabis arcoidea, Arabis campyloloba, Arabis peramoena, Arabis polytricha, Arabis sparsiflora, Arabis sparsiflora var. peramoena, Arabis sparsiflora var. sparsiflora, Boechera sparsiflora var. sparsiflora) -

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) -

Ashy Rockcress: Boechera subpinnatifida (Synonym: Arabis subpinnatifida ) -

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) -


Paul Slichter E-mail