Tom kha kai Dill weed is a common herb which is used in Lao cuisine. The Thais' answer to dill weed (known in Thailand as "phak chi Lao" (), since it is known locally as a Lao herb) in Thai "tom kha" is coriander or cilantro ("phak chi", ). There are other versions of "tom kha kai" made with seafood ("tom kha thale", ), mushrooms ("tom kha het", ), pork ("tom kha mu", ) and tofu ("tom kha taohu", ). In the late 19th century, "tom kha" was not a soup. it was a dish of chicken or duck simmered in a light
Herb and medicinal herbs; in medicinal or spiritual use, any parts of the plant might be considered as "herbs", including leaves, roots, flowers, seeds, root bark, inner bark (and cambium), resin and pericarp. The word "herb" is pronounced in Commonwealth English, but is common among North American English speakers and those from other regions where h-dropping occurs. In botany, the word "herb" is used as a synonym for "herbaceous plant". In botany, the term herb refers to a herbaceous plant, defined as a small, seed-bearing plant without a woody stem in which all aerial parts (i.e. above ground) die back to