It carries a parasite of Monarch Butterflies termed Ophryocystis elektroscirrha, or OE, that may bring about defects while in the wings of Monarchs. Because it doesn’t die back and will bloom late, the plant alone can also confuse Monarchs by signaling a breeding season when it’s time emigrate. , that https://is-milkweed-an-annual-or97531.glifeblog.com/30170489/5-simple-techniques-for-what-are-milkweed-plants