Alismaceae is an order of herbaceous marsh plants with milky juice. Butomaceae is an order of aquatic or marsh herbs. Hydrocharitaceae is an order of submerged aquatic herbs. Pictured are various parts of flowers of those orders.

Alismaceae, Butomaceae, and Hydrocharitaceae Orders

Alismaceae is an order of herbaceous marsh plants with milky juice. Butomaceae is an order of aquatic…