Camassia

Camassia is a genus of flowering plants in the family Asparagaceae, commonly known as camas or quamash. Native to North America, the genus includes several species that form bulbous perennials with slender, grasslike leaves and tall flowering stalks bearing panicles of blue, purple, or white flowers in spring.

Plants grow from underground bulbs or corms that store nutrients. Leaves are typically linear or strap-shaped, arising from the base. The inflorescences are tall, branching panicles with numerous star-shaped flowers. Camassia species usually bloom in late spring to early summer, depending on climate, and are valued for their graceful structure and long-lasting flowers.

Distribution and habitat vary by species, but Camassia is most closely associated with moist to wet habitats in western North America, including meadows, riverbanks, and open woodlands. Some species tolerate drier conditions in cultivated settings. They require a period of winter chill and generally prefer moist, well-drained soils; in gardens they benefit from full sun to partial shade.

Cultivation and uses: Camassia is grown as an ornamental plant in temperate gardens and can be propagated by bulbs or corms. In cultivation, they naturalize and can form striking colonies. The bulbs of some species were historically an important food source for Indigenous peoples of the Pacific Northwest, prepared by extensive cooking to convert inulin into sweeter carbohydrates. Raw bulbs can cause digestive upset, so proper cooking is important.

Taxonomy: Camassia comprises several species, including Camassia quamash (common camas), Camassia leichtlinii (great camas), and Camassia scilloides (Eastern camas). Some classifications place Camassia in older family frameworks such as Liliaceae, but modern systems typically assign it to Asparagaceae.