Natural hybridization and introgression of pinyon pines in northwestern Arizona
Lanner RM and Phillips AM. 1992. Natural hybridization and introgression of pinyon pines in northwestern Arizona. International Journal of Plant Sciences. 153(2):250-257
Natural hybridization between Arizona singleleaf pinyon (Pinus monophylla subsp. fallax [Little] Zavarin) and Colorado pinyon (P. edulis Engelm.) was studied in northwestern Arizona, using morphological characters. The array of phenotypes indicated introgression of both species. Hybridization occurred between elevationally stratified populations of the taxa where flowering phenology was overlapping. Colorado pinyon showed evidence of introgression in the western Grand Canyon area and up the Colorado River canyon into southeastern Utah, as well as southeastward below the Colorado Plateau.
- Type
- Journal Article
- Authors
- Lanner, Ronald; Phillips, Arthur
- Units
- PARA
- Keywords
- Arizona, Distribution, Jacob's Well, Mt. Trumbull, Observations, Pinaceae (Pines), Pinus edulis (Colorado Pinyon Nut Pine Pinon Pine Pinyon Pinyon Pine Two-leaf Pinyon Two-needle Pinyon Twoneedle Pinyon), Pinus monophylla (Nut Pine One-leaf Pine Singleleaf Pinyon), Poverty Mountain, Snap Point, Trail Canyon, Vouchers