Dutchman's-pipe

This, too, had pretty compound leaves, and the whole vine, like our Virgin's-bower, lay lightly on what it covered; but the Dutchman's-pipe had a leafage too heavy save to make a thick screen or arch quickly and solidly.

The curved hollow of the purplish-green Dutchman's-pipe is pocked on the inside by windowlike patches that are surrounded with pollen, which rubs off on the bug who mistakes the bright patch for daylight and freedom.