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Collinsia (after Zaccheus Collins, American philanthropist and promoter of science, Philadelphia, 1764- 1831). Scrophulariaceae. Hardy flower-garden annuals mostly from California and western North America.
Leaves simple, verticillate in 3's, or opposite: fls. in the axils, solitary or in whorls, racemose in some species; calyx bell-shaped; corolla deeply bi-labiate; stamens 4, the fifth rudimentary and glandular.—About 25 species. They are not far removed botanically from Pentstemon and Chelone. From the former, the genus differs in having the fifth sterile stamen reduced to a mere gland.
The collinsias are free-flowering and of the easiest culture. They may be sown outdoors in the fall in well-drained soil, and will bloom earlier than if sown in spring. Their flowers borne in midsummer range in color from white through lilac and, rose to violet, with clear, bright ' blue also, at least on one lip of the flower. There is no yellow.
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