Lithospermum occidentale (Mackenzie) Weakley, Witsell, & D. Estes. Western Marbleseed. Phen: May-Jul. Hab: Open woodlands over limestone. Dist: WI west to MT, south to nw. AR, TX, NM, and UT.

Origin/Endemic status: Native

Synonymy: = K3, K4, Weakley et al (2011); = Onosmodium bejariense A.DC. var. occidentale (Mack.) B.L.Turner – K2, NE, Turner (1995a); = Onosmodium molle Michx. ssp. occidentale (Mack.) Cochrane – K1, Al-Shehbaz (1991), Cochrane (1976); = Onosmodium molle Michx. var. occidentale (Mack.) I.M.Johnst. – C, GrPl; = Onosmodium occidentale Mack. – F, G, Il, Tx; < Onosmodium molle Michx. – S

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