Variation and Phenological Forms in Rhododendron calendulaceum (Michx.) Torrey (Ericaceae)
Willingham FF. 1976. Variation and Phenological Forms in Rhododendron calendulaceum (Michx.) Torrey (Ericaceae). Castanea. 41(3):215-223
Samples for this study of flame azalea phenology came from the Blue Ridge Parkway, as well as from the Nantahala National Forest. The author analyzed the morphology, biochemistry, and cytology of these tetraploid plants, finding a high degree of variability, but no distinct phenological forms. Prior researchers had found some evidence for forms with distinct phenology, and suggested contributions from R. bakeri; this paper discusses reasons for the discrepancy. With plot of bloom dates, table of morphological data for selected early and late flowering plants.
- Type
- Journal Article
- Authors
- Willingham, Frank
- Units
- BLRI
- Keywords
- flame azalea (Rhododendron calendulaceum)