Coriander is cilantro.

The aliases of coriander are coriander lozenge, hoary lozenge, and fragrant lozenge. Cilantro is an herbaceous plant of the genus Coriandrum in the family Umbelliferae, known as cilantro because its whole plant carries an aromatic odor and is mostly used as a flavor-enhancing vegetable, suitable for growing in a fertile and loose, sunny and ventilated, cooler environment. Cilantro belongs to herbaceous plants, its roots, stems and leaves with aromatic odor, breeding cilantro should be watered once a week for its water.

Coriander is native to the Mediterranean region of Europe, and is now cultivated in many provinces and regions of northeastern China, Anhui, and Zhejiang. Coriander is one of the world's earliest spices, having been cultivated in Egypt 3,500 years ago. Today, coriander is used in large quantities throughout the world, especially in Indian and Thai cuisine, where it is one of the most popular and important herbs.

Morphological Characteristics of Coriander

Annual or biennial, strongly scented herb, 20-100 cm tall. Roots fusiform, slender, with numerous slender branch roots. Stem terete, erect, much branched, striate, usually smooth. Rooted leaves are stalked, the stalks 2-8 cm long.

Leaf blade 1- or 2-pinnatisect, pinnae broadly ovate or flabelliform-cleft, 1-2 cm long, 1-1.5 cm wide, margins obtusely serrate, notched or y cleft, upper cauline leaves 3- to many-pinnatisect, ultimate segments narrowly linear, 5-10 mm long, 0.5-1 mm wide, tips obtuse, entire.

Calyx teeth usually unequal in size, small ovate-triangular, large long ovate. Petals obovate, 1-1.2 mm long, ca. 1 mm wide, apically with a concave ligule, radiating petals 2-3.5 mm long, 1-2 mm wide, usually entire, with 3-5 veins. Filaments 1-2 mm long, anthers ovate, ca. 0.7 mm long; style erect when young.

Refer to Baidu Encyclopedia-Coriander for the above