San Juan County WSU Master Gardener Foundation's presentation of:
Plant Family Morphology and Identification
David Giblin, PhD, Collections Manager and Research Botanist for the University of Washington Herbarium
This was an excellent refresher worth 4 hours of continuing education, that included an introduction to plant morphology, common plant families, and how to use a dichotomous Identification key.
Access Recordings here:
Basic Vascular Plant Morphology: Part 1 Vegetative Parts
Introductions to Ten Common Families and a Basic Key for 29 Families