|Standard Cyclopedia of Horticulture|
Quillaja (from Quillai, the Chilean name, which comes from quillean, to wash: the bark of the tree contains saponin, an alkaline compound, which makes it useful as soap). Rosaceae. Glabrous evergreen trees, whose bark is sometimes saponaceous, occasionally grown in the greenhouse and hardy outdoors in the southern United States.
Leaves sparse, petioled, simple, thick-coriaceous, rather entire; stipules small, deciduous: peduncles axillary and terminal, 3-5-fld.: fls. polygamous-dioecious, rather large, tomentose, the lateral male, the central fertile; calyx leathery, persistent, lobes 5, broadly ovate, valvate; petals 5, small, sessile, spatulate; disk thick, fleshy, 5-lobed; stamens 10; carpels 5: follicles 5, oblong, obtuse, leathery, cohering at their base, many-seeded.—About 3 or 4 species, natives of S. Brazil, Chile, and Peru.
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- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
- w:Quillaja. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
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