Use "fleabane" in a sentence

1. As the bitter fleabane of stock raising suddenly develops, course of work of pasturage plan money is deep...

2. Neophytes such as velvetleaf (Abutilon theophrasti), thorn apple (Datura stramonium), Canadian fleabane (Conyza canadenzis), and apple of fern (Nicandra physalodes) have been particularly conspicuous.