Galeopsis

Galeopsis is a genus of herbaceous annual plants in the family Lamiaceae, commonly known as hemp-nettles. These plants are native to Europe and Asia. The genus name, Galeopsis, is derived from the Greek words "gale" meaning weasel and "opsis" meaning appearance, referring to the resemblance of the flower to a weasel's snout. There are typically considered to be around seven to eleven species within the genus, though classification can vary.

Hemp-nettles are characterized by their opposite, toothed leaves, which are often hairy. Their flowers are bilabiate, meaning they have two lips, and are usually white, pink, or purplish, often with distinctive markings on the lower lip. They typically bloom from summer into autumn. These plants are often found in disturbed habitats such as cultivated fields, roadsides, and wastelands. Some species are considered weeds due to their aggressive growth and ability to outcompete other plants. They reproduce primarily through seeds. While not widely cultivated, some species have historically been used in traditional medicine.