Coleseed and flaxseed are one thing.

Flaxseed and caraway seed is no difference, just call it differently, flaxseed is also known as caraway seed, flaxseed is its scientific name, caraway seed is the northern people for the common name of flaxseed, which is also called autumn flaxseed, mostly used for oil extraction and consumption, or as a dish with a high nutritional value. Distinguished according to its growth habit, can be divided into single rod type and branched type.

The single-stemmed type has a high yield but matures later, while the branched type matures earlier, though with a lower yield. It is a very important oilseed crop in Hebei, Shanxi, Gansu, Inner Mongolia and other regions, it is an annual, flax ripening seed is flaxseed. It likes to grow in temperate and tropical areas, the origin is China's Yunnan-Guizhou Plateau and the Mediterranean coastal areas.

Morphological characteristics of flaxseed:

Flaxseed is an annual herbaceous plant, the shape of the seed is flattened ovate, the front end of the beak shape like a bird's beak shape, the surface is smooth, reddish and shiny. One side is thinner, one end is bluntly rounded, the surface is brown, smooth and glossy, tiny dots can be seen under enlarged microscope, the umbilicus is in the tip of the concave part of the seed, the seed coat is thinner, and when it is removed, brown film-like endosperm can be seen, and the root of the embryo is toward the tip of the seed.

The reddish-brown color, fullness and purity are preferred, and the flowering period is from May to June, and the fruiting period is from June to September. The plant likes to grow in deep, loose, fertile and well-drained soil, and can be cultivated if the soil's salinity is less than 0.2%. It prefers a relatively cool and humid climate, tolerates cold, does not tolerate high temperatures, and has good drought tolerance.

Refer to Baidu Encyclopedia - Caraway Seed