[elkhornsloughctp.org] Conservation, Rarity: In the Santa Cruz Mountains, severely reduced from sand mining and associated urban expansion into sand parkland habitats in Scotts Valley and the San Lorenzo River watershed. As of 2015, the population at the Bonny Doon Ecological Reserve is doing well following the 2008 Martin Fire, which burned approximately half of the Reserve. East Bay reports are incorrect, based on the misidentification of E. nudum var. auriculatum (Ertter and Naumovich 2013). The report of this plant from the Mindego Hill quad (Santa Clara County) (CNPS 2010) is also doubtful . (link added by Mary Ann Machi)