Wiktionary
arrowleaf
a. (context in plant names English) Having arrow-like leaf.
WordNet
Usage examples of "arrowleaf".
I pushed the raft down the stream and gathered arrowleaf bulbs, cattail tubers, bulrush roots, and the nutlike tubers of the sedges.
Cattails and arrowleaf potatoes are types of small plants that are very useful for humans and animals.