Lyre-Leaved Rock Cress
Hudson Bay Regional Park
The keys to genera in Budd's Flora and Flora of Alberta contain questions about leaf shape. These questions do not distinguish between basal and cauline leaves, and are therefore confusing when applied to this species which has lyrate-pinnatifid basal leaves and entire or slightly toothed cauline leaves. Therefore the answers to these questions have been eliminated from the list below. In addition, an answer from Flora of Alberta requiring plants generally pubescent; NOT [plants mostly glabrous] has also been eliminated because it does not apply to this species.
The key to the species in Flora of Alberta requires basal leaves NOT ciliate; NOT [basal leaves generally strongly ciliate]. The petioles of the basal leaves of these specimens are ciliate, so the answer to this question has also been eliminated.
Lyrata: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species.
Arabis: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus.
Cruciferae: Answers to key questions in Budd's Flora leading to this family.