Shogun Philodendron is a flower that knows karate.
History
The Richie Rich/Scooby-Doo Show
Season one
It was brought in by a contestant on Thats Impossible. It demonstrated its ability on Scooby-Doo, and later on the alien pod clones that "upstaged" it with their invasion announcement. (The Invasion Of The Scooby Snatchers)