Thunderweed

Thunderweed is a common name that has been applied to several different plant species, often depending on regional usage. One notable plant sometimes referred to as thunderweed is *Sisymbrium irio*, also known as London rocket. This is an annual herbaceous plant that belongs to the Brassicaceae family, which includes mustard and cabbage. London rocket is typically found in disturbed areas, fields, and waste ground. It has been observed to grow quite rapidly, particularly in the spring.

Another plant that may be called thunderweed is *Psoralea glandulosa*, a shrub native to South America. This species is known for its aromatic properties and has been traditionally used in some cultures. The association with "thunderweed" likely stems from various folkloric beliefs or anecdotal observations related to its growth or scent, possibly linked to atmospheric conditions or seasonal events. Due to the ambiguity of the common name, identifying the specific plant intended by "thunderweed" requires context. Scientific literature and botanical resources generally prefer the use of scientific names to avoid confusion.