Chihuahuan Arrowhead

Description

Sagittaria demersa, commonly called Chihuahuan arrowhead, is an aquatic plant species native to north-central Mexico (Chihuahua, Durango. Hidalgo, Aguascalientes, Jalisco and Quer-taro) and also from a few sites in the northern part of the US State of New Mexico (Mora and Colfax Counties).Sagittaria demersa is an annual herb up to 60 cm tall. Leaves are flat, very long and narrow, up to 55 cm long but rarely more than 7 mm across. The plant occurs mostly submerged in streams and lakes.