Apocynum cannabinum aka Indian Hemp

Apocynum cannabinum, also known as Indian hemp, dogbane, amy root, hemp dogbane, prairie dogbane, rheumatism root, or wild cotton, is a poisonous, herbaceous perennial plant that grows throughout North America. It can reach heights of 30-180cm and produces branched stems from a rhizomatous rootstock. All parts of the plant, which exudes a milky juice when bruised, are toxic to humans, dogs, cats, and horses and can cause cardiac arrest if ingested. However, some Lepidoptera, such as hummingbird moths, feed on the plant. Indian hemp was widely used by Native Americans as a medicine chest and a source of latex and excellent fiber, and it is still sometimes used for these purposes. The plant is considered a noxious weed in some parts of North America. It typically grows in dry rocky or open woods, glades, and prairies and is important to Indigenous communities for making rope products due to its fibrous stems.