Join Don Th omas for a four mile walk to see the one of the more accessible populations of the endemic Western leatherwood (Dirca occidentalis). We may also see some early emerging woodland plants in flower. There will be some moderate but slow-p aced hill climbing, with a stop for lunch. We will take the Hamm’s Gu lch trail to see the Dirca near the bench. Along the way, we will walk thro ugh a variety of plant communities, including meadows, oak woodland, mixed evergreen forest, redwood forest and riparian woodland.