863101-03 The Packera heterophylla aggregate P. heterophylla, P. hyperborealis, P. ogotorukensis
Geography: Asian (N/C) - amphi-Beringian - Cordilleran & North American (NE).
Notes: The four taxa entered below are separable by some consistent morphological features and partly by different ploidy levels. Packera hyperborealis subsp. hyperborealis and P. ogotorukensis are reported with 2n = 46 (diploid in this genus), P. hyperborealis subsp. wrangelica with 2n = 138, and P. heterophylla (Senecio resedifolius) with a wide range from 2n = 46-48 to 148-218. The systematics may still not be clear.
- Packera [8631,genus]