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Isanthus brachiatus (L.) B.S.P..  Present in the Texas flora and known locally as: Fluxweed, false pennyroyal  (Texas Distribution by vegetation zone). Synonymy:   Isanthus brachiatus var. linearis Fassett, Tetraclea viscida Lundell, Trichostema brachiatum L.

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Tetraclea coulteri Gray - Coulter's wrinklefruit.  Present in the Texas flora, no local name.  (Texas Distribution by vegetation zone). Synonymy:   Tetraclea coulteri var. angustifolia (Woot. & Standl.) A. Nels. & J.F. Macbr.