The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of numerous plants of the genus Oxalis, having often cloverlike compound leaves with three leaflets and variously colored flowers that are usually clustered in umbels. Also called wood sorrel.
n. Any of various ornamental flowering plants of the genus Oxalis
Word Usage
"Librarians grow like oxalis around the crust of the town, there is no such thing as a diminutive librarian down our way, and the dreams I have at night about this very one involve ladders and falling and being caught."