Ageratina altissima aka White Snakeroot

Ageratina altissima, also known as white snakeroot, richweed, or white sanicle, is a poisonous perennial herb in the family Asteraceae. Native to eastern and central North America, this tall herbaceous perennial grows up to about 1.7m with brown stems and grey-green, nettle-like leaves. In summer and early autumn, it produces umbel-like clusters of small, white, long-lived flowers. Formerly known as Eupatorium rugosum, this species has undergone taxonomic revision, resulting in the reclassification of some species from the genus Eupatorium to other genera. Richweed, a super rare houseplant, is easy to grow and requires regular watering for optimal growth. It thrives best in abundant sunlight and should be placed within 3 feet from a window. Native to North America, richweed belongs to the Ageratina genus.