Solidago velutina Dc.  

Family: Asteraceae

threenerve goldenrod, more...three-nerve goldenrod, sparse goldenrod

[Solidago arizonica (A. Gray) Woot. & Standl., moreSolidago californica var. nevadensis A. Gray, Solidago canadensis var. arizonica A. Gray, Solidago howellii Woot. & Standl., Solidago sparsiflora A. Gray, Solidago spathulata var. subcinerea A. Gray, Solidago trinervata Greene, Solidago velutina var. nevadensis (A. Gray) C.& J. Taylor]