a kind of harmful plant的用法和样例：
- Nettle is a kind of common wild plant.
- It's a kind of harmful and odorous air in the human body.
- Eriosoma lanigerum(Woolly apple aphid) is a kind of harmful pest to agricultural plant quarantined.It lives in the apple tree autoeciously and does harm collectively.
- A wren is a kind of short-winged songbird.
- Custard is a kind of sweet sauce.