California Botanical Society

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California Botanical Society–has served a major role in advancing western American botany.

Alaska Native Plant Society

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Alaska Native Plant Society–dedicated to studying and conserving Alaska native plants. The Alaska Native Plant Society was formed in 1982 by a small group of enthusiastic amateur and professional botanists for the purpose of educating Alaskans about their native flora and the growing need for its protection.

Sound Native Plants

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Sound Native Plants, Olympia, WA–offers a wide selection of container-grown native trees, shrubs, herbaceous perennials, and wetland emergents.