Photos / Sounds

What

Japanese Stiltgrass (Microstegium vimineum)

Observer

coreyburt

Date

September 8, 2019 02:52 PM EDT

Description

First record for Canada. Short, decumbent grass, rooting at nodes. Lanceolate leaves with distinct silver midrib, sparse pubescence. Ligule short. Forming dense mats. Several large clumps found throughout Black Walnut dominated Cultural Woodland. Total area covered by infestation greater than 1 hectare in size.

Herbarium vouchers deposited at NHIC (#09651) and Royal Botanical Herbarium (#61138).