genus Lithophragma
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| Noun | 1. | genus Lithophragma - small genus of perennial herbs of the western North America rosid dicot genus - a genus of dicotyledonous plants family Saxifragaceae, Saxifragaceae, saxifrage family - a large and diverse family of evergreen or deciduous herbs; widely distributed in northern temperate and cold regions; sometimes includes genera of the family Hydrangeaceae Lithophragma affine, Lithophragma affinis, Tellima affinis, woodland star - California perennial herb cultivated for its racemose white flowers with widely spreading petals; sometimes placed in genus Tellima Lithophragma parviflorum, prairie star - plant with mostly basal leaves and slender open racemes of white or pale pink flowers; prairies and open forest of northwestern United States to British Columbia and Alberta |