About Allium crenulatum Wiegand
Allium crenulatum, commonly known as the Olympic onion, is a plant species native to Oregon, Washington, and British Columbia. It grows in the Cascades, the Coast Ranges, the Olympic Mountains, the Wenatchee Mountains, and the mountains on Vancouver Island. There is a single unconfirmed report of this species occurring in Alabama. This onion grows on talus slopes and in alpine tundra, at elevations ranging from 600 to 2500 m. Allium crenulatum produces ovoid bulbs that grow up to 2 cm long. These bulbs form on rhizomes, some distance away from the parent bulb. Its leaves are flat, reaching up to 35 cm in length, and sometimes have minute teeth along their margins. The scape is flattened and winged, growing to a height of up to 15 cm. The inflorescence is a compact umbel that holds up to 25 flowers. The flowers are bell-shaped, up to 13 mm across; their tepals are pink with darker pink midveins; anthers are yellow or purple; and pollen is yellow.
