Genus Lasthenia is a group of flowering plants or herbs that are commonly found in North America. The term "Genus" refers to a group of plants or animals that share certain characteristics, while "Lasthenia" is derived from the Greek word, "lasthenis," which means "delicate." There are several synonyms for the Genus Lasthenia, including Goldfields, Tack Stem, Rusty Goldfields, and Yellow Tack Stem. These plants are known for their vibrant yellow or orange flowers, which bloom in the spring and summer months. Additionally, they are an important food source for many insects and birds, making them an essential part of many ecosystems.