2 literature references for Physaria recurvata (Engelm. ex A. Gray) O'Kane & Al-Shehbaz:

Author: O'Kane, S.L. & Al-Shehbaz, I.A.
Year: 2002
Title:
Source: In: Al-Shehbaz, I.A. & O'Kane, S.L. Novon 12: 327.
Author: O'Kane, S.L. & Al-Shehbaz, I.A.
Year: 2002
Title:
Source: In: Al-Shehbaz, I.A. & O'Kane, S.L. Novon 12: 327.