About Myriopteris wrightii (Hook.) Grusz & Windham
Myriopteris wrightii (Hook.) Grusz & Windham grows from a long creeping rhizome that measures 1 to 3 mm in diameter, bearing brown scales that are often deciduous on older sections of the rhizome. Its leaves grow in clustered to somewhat scattered arrangements, and reach 4 to 25 cm long and 1 to 4 cm wide. When fronds first emerge, they have circinate vernation, meaning they are tightly coiled. The leaf petiole is brown and grooved on its adaxial (upper) side. Leaf blades are medium green, sometimes with a silvery or bluish cast, and are lanceolate to ovate-deltate in shape. They are 2-pinnate-pinnatifid at the base. The ultimate leaflets are oblong to linear, with the largest measuring 3 to 7 mm in length. Leaflets are hairless on both their upper and lower surfaces, and curl under at the edges to form a false indusium. The sori are discontinuous and concentrated on interrupted lateral lobes. This species is native to Arizona, New Mexico, and Texas in the United States, as well as northern Mexico. It grows on rocky slopes and ledges, most often on igneous substrates, at elevations between 300 and 2000 meters. Myriopteris wrightii can be cultivated. For successful cultivation, it should be grown under high light in well-drained garden soil mixed with sand, where the soil stays dry to moist-dry.
