Standing 15 to 20 feet tall, giant hogweed towers over most plants. It combines 5-foot wide, irregularly notched, compound leaves with coarse white bristles clumping around its leaf stalks.

giant hogweed can be identified by its clusters of small white flowers, its hollow stalks covered by coarse hairs and purplish spots and its green, jagged leaves. “It’s a huge plant.

Giant hogweed is an invasive weed originating from ... with stiff white hairs. The leaves look a bit like rhubarb, while the flowers, which appear in June and July, are small and white and ...

The Giant Hogweed Mitigation Project’s founder John Kemp learned about the plant — which can grow up to 18 feet tall and ...