Arctostaphylos bicolor (Nutt.) A. Gray Arctostaphylos bicolor (Nutt.) A. Gray in Proc. Amer. Acad. Arts 7: 866. 1868 sec. Hassler 2018≡Xylococcus bicolor Nutt. in Trans. Amer. Philos. Soc., n.s., 8: 259. 1843 syn. sec. Hassler 2015–2018