Latin scientific name: iris
Nicknames: yellow iris and aquatic iris.
Acorus calamus is one of the aquatic flowers. Its color is Yan Huang, and the flowers are beautiful, such as butterflies flying among the flowers, which has high ornamental value. Wide application range, can be cultivated in open space or water near the pool, and has good effect. Its Latin name pseudacorus is a combination of pseudo and acorus, in which acorus is the generic name of Acorus calamus, and pseudo means "false" and "like ……", which together means "like Acorus calamus" and "false Acorus calamus", which means that the morphology of Acorus calamus is very similar to that of Acorus calamus.
Perennial herb, with a small amount of fibers left by old leaves at the base of the plant, and stout rhizomes, 2. 5 cm in diameter, extending obliquely, with obvious nodules and yellowish brown; The fibrous roots are yellow and white with shriveled horizontal stripes. Basal leaves are gray-green, sword-shaped, 40-60 cm long and 1.5-3 cm wide, tapering at the top, sheath-like at the base, pale in color and obvious in midvein. The stem is stout, 60-70 cm high, 4-6 mm in diameter, with obvious longitudinal edges and upper branches. Cauline leaves are shorter and narrower than basal leaves. Bracts 3-4, green, membranous, lanceolate, 6. 5-8. 5cm long, 1. 5-2 cm wide, tapering at the tip; Yellow flower, diameter 10- 1 1 cm; Pedicel 5-5.5 cm long; The perianth tube is 1. 5 cm long, the outer perianth lobes are oval or obovate, about 7 cm long and 4.5-5 cm wide, the claws are narrow and wedge-shaped, the center is sunken into a ditch with dark brown stripes, and the inner perianth lobes are small, oblanceolate and erect, 2. 7 cm long and 5 mm wide. Stamens about 3 cm long, filaments yellow and white, anthers black and purple; Style branches yellowish, ca. 4. 5 cm long, 1. 2 cm wide, with semicircular lobes at the top and sparse teeth at the edge. Ovary green, triangular, columnar, ca. 2. It is 5 cm long and about 5 mm in diameter. It blooms in May and bears fruit in June-August.