Is there an upside down caret character?

There's ▲: ▲ and ▼: ▼

Don't forget the ∧ (logical and) and ∨ (logical or) characters, that's what I use for indicating sort direction: HTML entities ∧ & ∨ respectively.

There's always a lowercase "v". But seriously, aside from Unicode, all I can find would be &darr, which looks like ↓.