[Members of the Sunflower Family with Dandylion-like Flower Heads]

Wildflowers of the Genus Lactuca

Found in the Columbia River Gorge

 


1. Tall Blue Lettuce: Lactuca biennis - Flowers 13-34 in a head. Flowers white to bluish, occasionally yellow. Leaves not prickly margined. Middle and upper stem leaves gradually reduced in size.

2. Wall Lettuce: Mycelis muralis (formerly Lactuca muralis) - Flowers 5 to a head. Flowers yellow. Middle and upper leaves much reduced in size.

3. Willow Lettuce, Least Lettuce: Lactuca saligna - Flowers 8-16 per head. Flowers yellow. Leaves linear and entire, or with slightly toothed lobes. Not prickly-margined. Middle and upper stem leaves gradually reduced in size.

4. Prickly Lettuce: Lactuca serriola var. integrata - Flowers 18-24 in a head. Flowers yellowish, sometimes drying to bluish. Leaves prickly margined. Middle and upper stem leaves gradually reduced in size.


Paul Slichter