Aliases: Yellow Yarrow
Where to find it: Rocky, open areas at Yosemite's lower elevations and outside the park in the Merced River Canyon. If you're looking for it along the Tenaya Canyon loop, where these photos were taken, check the landslide area on the south side of the river.
Blooms: April - July
Lifespan: Perennial (shrub)
Eriophyllum confertiflorum etymology: Eriophyllum is Greek for "woolly-leaved". Confertiflorum is a Latin conglomeration meaning densely flowered (confertus = crowded; floris = flower).    
This Photo: In Tenaya Canyon, mid June