Coriander

Heb. gad, (Ex. 16:31; Num. 11:7), seed to which the manna is
likened in its form and colour. It is the Coriandrum sativum of
botanists, an umbelliferous annual plant with a round stalk,
about two feet high. It is widely cultivated in Eastern
countries and in the south of Europe for the sake of its seeds,
which are in the form of a little ball of the size of a
peppercorn. They are used medicinally and as a spice. The Greek
name of this plant is korion or koriannon, whence the name
"coriander."