They are insects with a distinct arrowhead-like or shield-like body shape. The first invasive brown marmorated stink bug was ...

Learn More › Thanks to the half-moon shape of their heads, hammerhead worms are known by many names, including hammerhead flatworm, arrowhead flatworm, and broadhead planarian (a category of ...

Efforts are especially active now, as part of National Invasive Species Awareness Week ... tuberous sword fern, arrowhead vine, wild taro, kalanchoe, camphor tree, and air potato.