hibiscus trionum

Noun hibiscus trionum has 1 sense

• hibiscus trionum(n = noun.plant) black-eyed susan, bladder ketmia, flower-of-an-hour, flowers-of-an-hour - annual weedy herb with ephemeral yellow purple-eyed flowers; Old World tropics; naturalized as a weed in North America;
is a kind of hibiscus