Aquarium Plant Care Sheet : This care sheet provides information necessary for keeping Proserpinaca palustris in aquariums, helping aquarists to maintain and propogate this species successfully. Mermaid Weed ( Proserpinaca palustris ) Table of Contents Introduction and Taxonomy Summary Table of Ideal Care Parameters Native Range and Geographic Distribution Natural Habitat and Environmental Conditions Morphological and Growth Characteristics Ideal Water Parameters Aquarium Lig