Brown and Drab Flowers » 2 Aristolochia watsonii – Watson's Dutchman's Pipe Conyza canadensis – Canadian Horseweed Cylindropuntia arbuscula – Arizona Pencil Cholla Cylindropuntia versicolor – Staghorn Cholla Dasylirion wheeleri – Common Sotol Lycium pallidum – Pale Desert-thorn 2 of 3First<2>Last