Roberts, Christa

CR109, bonkerae boyce-thompsonii, USA, Arizona, Superior
CR124, chloranthus chloranthus, USA, New Mexico
CR117, dasyacanthus, USA, Texas
CR104, engelmannii acicularis, USA, Arizona, Coolidge
CR141, engelmannii acicularis, USA, Arizona, Silver Bell
CR150, engelmannii acicularis, USA, Arizona, Gonzales Pass
CR180, engelmannii acicularis, USA, Arizona, Tortilla Mts.
CR183, engelmannii acicularis, USA, Arizona, Barkersville
CR185, engelmannii acicularis, USA, California, Desert Centa
CR130, fasciculatus, USA, Arizona, Kearny
CR152, fasciculatus, USA, Arizona, Tom Mix Wash
CR181, fasciculatus, USA, Arizona, Box Canyon
CR151, fasciculatus boyce-thompsonii, USA, Rockinstraw Mts.
CR154, fasciculatus boyce-thompsonii, USA, Arizona, Tortilla
CR155, fasciculatus boyce-thompsonii, USA, Arizona, Claypool
CR182, fasciculatus Hybride, USA, Arizona, Silver Bell
CR105, fendleri rectispinus, USA, Arizona, Oracle
CR133, fendleri rectispinus, USA, Arizona
CR142, fendleri rectispinus, USA, Arizona, Pinal Mts.
CR135, pseudopectinatus, USA, Arizona, Mule Mts.
CR123, rigidissimus, USA, Arizona, Mule Mts.
CR153, rigidissimus, USA, Arizona, Greaterville