Lesquerella (Brassicaceae) is united with the earlier-published Physaria following an unsuccessful attempt to conserve the more speciose Lesquerella.Molecular, morphological, distribution¬ al, and ecological data strongly support the union of the two genera.Ninety-one names in Lesquerella, including 75 at the specific rank, are transferred to Physaria.The new names P. nelsonii and P. reediana are proposed to avoid the creation of later hom¬ onyms in Physaria.
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Al‐Shehbaz et al. (2002) studied this question.
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