Kingdom Plantae Family Alismataceae Rank Species | Order Alismatales Genus Sagittaria | |
Similar Sagittaria secundifolia, Sagittaria sanfordii, Sagittaria isoetiformis, Sagittaria fasciculata, Sagittaria rigida | ||
Sagittaria demersa, commonly called Chihuahuan arrowhead, is an aquatic plant species native to north-central Mexico (Chihuahua, Durango. Hidalgo, Aguascalientes, Jalisco and Querétaro) 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.
References
Sagittaria demersa Wikipedia(Text) CC BY-SA