(MD) (Montgomery Parks) Join Weed Warrior Supervisors Greg and Kathryn for a non-native, invasive plant removal workday in Sligo Creek Stream Valley Unit 4. We will focus on non-native, invasive vines and shrubs, including porcelainberry (Ampelopsis glandulosa var. brevipedunculata), wintercreeper (Euonymus fortunei), English ivy (Hedera helix), Japanese barberry (Berberisthunbergii), and bush honeysuckle (mainly Lonicera maackii). Native Virginia creeper and poison ivy are also ...