(MD) (Montgomery Parks) Save the trees and honor the legacy of Dr. Martin Luther King Jr. during the MLK Weekend of Service Join Ellen, Weed Warrior Supervisor, for a non-native, invasive plant removal workday in Maydale Conservation Park in Colesville, MD. We will be focusing on non-native, invasive vines and shrubs, including porcelainberry (Ampelopsis glandulosa var. brevipedunculata), wintercreeper (Euonymus fortunei), ...