Tilley, Derek J. 2015. Seed production and field establishment of hoary tansyaster (Machaeranthera canescens). Native Plants Journal. 16(1): 61-66.
Tilley, Derek J. 2015. Seed production and field establishment of hoary tansyaster (Machaeranthera canescens). Native Plants Journal. 16(1): 61-66.