Allium macropetalum forms egg-shaped bulbs up to 2.5 cm long. Flowers are bell-shaped, pink to purple, up to 12 mm across, with yellow or purple anthers.[4][6][7][8][9][10][11]
^Cronquist, A.J., A. H. Holmgren, N. H. Holmgren & Reveal. 1977. Vascular Plants of the Intermountain West, U.S.A. 6: 1–584. In A.J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermountain Flora. Hafner Pub. Co., New York.
^Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
^Shreve, F. & I. L. Wiggins. 1964.Vegetation and Flora of the Sonoran Desert. 2 vols. Stanford University Press, Stanford.[ISBN missing][page needed]
