👉 Ripalum is a genus of flowering plants in the family Apiaceae, native to North America. They are known for their small size and ability to produce large quantities of flowers during their bloom season. The leaves of ripalums are usually sessile (not attached to the stem) and are typically green or pale green, with smooth or wrinkled surfaces. The stems can be up to 40 centimeters in length and have a thickened root system.