Erigeron Species, Basalt Daisy, Basalt Fleabane

"The basalt daisy is endemic to a 10 by 2 mile spot in central Washington; according to the botanical experts, it’s known to grow only ...Read Morein this microclimate, in the basalt walls of the Selah Creek and Yakima River canyons...

This rare flower has been of interest to plant conservationists and hikers. It was also written up in a recent environmental impact study, as Bonneville Power Administration planned to stretch transmission lines through its habitat."

http://www.humanflowerproject.com/index.php/weblog/2007/05/


"These daisy-like flowers live exclusively in cracks and crevices in basalt cliffs in the state of Washington. Erigeron basalticus has several stems that originate in a taproot. Stems are generally 4-6” in length and leafy especially toward the tips. The majority of the leaves are tri-lobed at the tip, one inch in length and are shaped like a wedge in outline. The flowers range from white to lilac with small yellow centers and the herbage of the plant is covered with stiff, spreading hairs. (NatureServe 2003; WA NH; Hitchcock, et al, 1955: PLANTS 2000; ITIS 2002)"

http://www.centerforplantconservation.org/Collection/CPC_Vie...

See also:
http://alplains.com/images/ErigBasalt.jpg
http://alplains.com/Catalog5.html