Entry for Heterotheca fulcrata (Greene) Shinners var. fulcrata [family COMPOSITAE]
Entry From
Flora of North America, Vol 20,
Names
Heterotheca fulcrata (Greene) Shinners var. fulcrata [family COMPOSITAE]
Chrysopsis cryptocephala Wooton & Standley [family COMPOSITAE]
Chrysopsis elata Osterhout [family COMPOSITAE]
Chrysopsis resinolens A. Nelson [family COMPOSITAE]
Chrysopsis resinolens var. ciliata A. Nelson [family COMPOSITAE]
Chrysopsis viscida subsp. ciliata (A. Nelson) S. F. Blake [family COMPOSITAE]
Discussion
Variety fulcrata grows in the Front Range of the Rocky Mountains (Colorado and Wyoming), and in disjunct populations in Arizona, New Mexico, and Utah; it is considered very rare and atypical in adjacent Idaho, Nevada, and Texas, where it is of conservation concern. Variety fulcrata is the most variable member of Heterotheca fulcrata. It is characterized by having more hairs than glands per area of leaf face, the hairs being sparse to moderate. Many collections are morphologically intermediate in indument features with var. amplifolia. A few intermediates with the other two varieties also have been collected, as well as a number of possible hybrids with H. pumila and with several varieties of H. villosa.