Evil plants you have known
I was inspired by the post about wild violets. I like my violets and encourage them to grow in my wilderness areas. Alas, my violets are shy and retiring, hesitant to make themselves known. They're not thugs.
I do have thug plants.
So what is a weed or a thug plant? I use the classic definition for a weed: a plant growing where it's not wanted. Oak trees in the house gutters is a prime example.
You can also recognize weeds because nothing you *want* will grow with the enthusiasm of a weed. I'm pretty blasé about most plants: ragweed has oil-rich seeds birds need in the winter. I'm lax about weeding too. But there are some plants...
What are your evil plants, the ones you pull on sight, the ones you'd pay good money for a plant-specific herbicide?
Bindweed. Awful and unkillable.
Canadian Thistle. Not Canadian and not a thistle but aggressive. At least it can be killed with faithful, systematic weeding which lasts until the wind blows and new seeds arrive.
English Ivy. A smothering blanket.
Poison Ivy. I know birds like the berries but it's a real problem in our area.
Porcelain berry. Birdies love it and I don't, as it attempts to smother everything it touches. Every damn seed sprouts, each one surrounded by its glob of fertilizer.
Trumpet Vine. Gorgeous, feeds hummingbirds, and swiftly spreads into an aggressive, smothering blanket.
Virginia Creeper. Another smothering blanket.
Wild grape. See above.