Haplopappus Acaulis, commonly known as the stemless rubberweed, is a type of flowering plant native to North America. This plant belongs to the Asteraceae family and is known for its yellow flowers that bloom in the summer. If you're looking for synonyms for Haplopappus Acaulis, there are a few other common names you can use. These include the stemless goldenweed, stemless rubber rabbitbrush, and stemless rabbitbrush. Each of these names refers to the same plant, so feel free to use whichever one you prefer. No matter what you call it, this plant is a beautiful addition to any garden or landscape.