Page 72 - Walks In The Black Range, Vol. 4

Krameria plants are wholly dependent upon Centris bees to effect their pollination, the relationship is not mutually exclusive – Centris bees utilize other oil-producing plants as well.
D. In the photograph above, the trees at right center are at the end of a wash system and just east of the flat plain of the ciénaga. (Photograph by Mike Barnes, May 20, 2020.)
E. Four-wing Salt Bush, Atriplex canescens, (photograph from May 20 to the right and at the top of the following page) is found in much of the western United States (see BONAP map left) and southward to
southern Mexico. Vascular Plants of the Gila Wilderness notes that “The silvery appearance of the leaves is not due to hairs, but rather due to a covering of flaky scale-like structures, almost like dandruff.” (See photo on the following page.) This species readily hybridizes with others in its genus, causing some disagreements about specific specimens. In the case of the type specimen for this species there is the following from Flora of North America:
“Materials from the vicinity of the type locality of the species in South Dakota are low subherbaceous