Although there are not many of these plants at the Reveler site, the webworms are present and doing their best to control the invasive plant. However, the plant though invasive, does provide much nectar for scores of insects including butterflies, bees, moths, etc.It is also frequently used by the native Black Swallowtail Butterfly to lay eggs on. Here, you can see the caterpillar and the damage it has done to part of the flower (left).

There has been much hysteria over the plant here and it is ridiculous. You need to break the stem or leaves, get the sap on your skin and then get enough sunlight on it to cause the photodermatitis reaction which can include blisters. Just touching or handling the plant, walking through it, etc, will not cause any sort of reaction. I've done that for decades and never had a problem.