Clustered Broomrape
Orobanche franciscanum
Synonym: Orobanche fasciculata var. franciscana
This species is very similar to Aphyllon fasciculatm but parasitic upon Eriogonum sp., Eriophyllum lanatum, Phacelia sp. and others but not on Artemisia sp.
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Clustered broomrape in bloom at left along the Pacific Crest Trail #2000 in northern California at a saddle uphill to the south of Echoe Lake and just east of the Red Buttes Wilderness, Klamath National Forest......July 14, 2020. The photo at right shows clustered broomrape in bloom atop Big Red Mountain, Siskiyou Crest, Rogue River-Siskiyou National Forest......July 16, 2020.
Clustered broomrape blooming in talus and graveled slopes on the south side of Whetstone Butte, Siskiyou National Forest.......July 12, 2012. A number of this species were also observed blooming around a dusty maiden (Chaenactis douglasii).
Paul Slichter