Dichelostemma congestum

Dichelostemma congestum is a species of flowering plant known by the common name ookow or fork-toothed ookow.

This perennial wildflower is native to the hills and mountains of western North America, from British Columbia through California.

Its tall, thin, naked stem is topped with an inflorescence packed densely with six to 15 flowers, each about a centimeter wide and long, with usually six petal-like lobes in shades of bright purple.

It was first published in 1811 as Brodiaea congesta.