Evening primrose is the common name for many different species of primrose plants, but the problematic one is Oenothera speciosa. “This plant spreads by both rhizome, or underground stems ...

but don’t confuse them with the common primrose (Primula vulgaris), a perennial plant you may have grown outdoors at home. While the two share some physical similarities, their care requirements are ...

VENTURA, Calif.— The U.S. Fish and Wildlife Service today proposed removing the San Benito evening primrose from the federal list of threatened species based on recovery of the plant, which occurs in ...