Where does dill essential oil come from, and is dill seed the same as qianlixiang?

Dill seed is oval and flat, 3~5mm long and 2~3mm wide. The surface is brown, with the remains of the style visible at the tip and sometimes a small fruit stalk at the base. The back of the mericarp is extremely flattened, with 3 indistinct ridges, and the lateral ridges extend into wings; the commissural face is flat and straight, with 1 ridge line in the center. Western spice use relies on its dried seeds, ground seed material, essential oil and oleoresin.

Where does dill essential oil come from: the main producing areas are Egypt and India.

Is dill seed the same as qianlixiang?

No
Dill seed is the fruit of dill. After the fruit branches mature, they are harvested, sun-dried, the fruits are knocked off, foreign matter is removed, and they are sun-dried until completely dry. Also known as shimeizhong, dill pepper, small fennel, shrunken-grain fennel, and earth fennel. It can be used as medicine to warm the spleen and kidneys, stimulate appetite, dispel cold, promote the movement of qi, and neutralize the toxicity of fish and meat.

Qianlixiang is a small tree plant in the Rutaceae family. It grows in sparse forests or dense forests of low hills or high-altitude mountainous areas. It is more common in limestone areas and also occurs in granite areas, sometimes as a single dominant species within a small area. The roots and leaves are used as herbal medicine. The taste is slightly pungent, bitter and numbing. It is warm in nature and slightly toxic, and it unblocks the meridians, promotes the movement of qi, invigorates the blood, disperses blood stasis, relieves pain, calms fright, reduces swelling, and removes toxins. It is used to treat colds, headaches, stomach pain, toothache, rheumatic bone pain, and traumatic swelling and pain. Also known as qilixiang, wanlixiang, jiuqiuxiang, jiushuxiang, guoshanxiang, huangjingui, qingmuxiang, yueju, and shilixiang.