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 '''Deulkkae''' is an annual plant native to Southeast Asia and Indian highlands, and grown in Korean peninsula, Southern China and India. The plant was introduced into Korea before Unified Silla era, when it was widely cultivated. 

{{Uses|Astama}}, {{Uses|Cough}}, {{Uses|coldsColds}}, {{Uses|chillsChills}}, {{Uses|nauseaNausea}}, {{Uses|abdominal Abdominal pain}}, {{Uses|food Food poisoning}}, {{Uses|Diarrhea}}.

{{Parts Used|Leaves}}, {{Parts Used|stemsStems}}.

Research has isolated such constituents as apigenin, Ascorbic-acid, beta-carotene, caffeic-acid, citral, dillapiol, elemicin, limonene, luteolin, myristicin, perillaldehyde, protocatechuic-acid, quercetin, rosmarinic-acid.<ref name="chemical composition"/>

{{Leaf|Simple|oppositeOpposite|7–12 centimetres (2.8–4.7 in) long and 5–8 centimetres (2.0–3.1 in) wide, with an broad oval shape, pointy ends, serrated(saw-toothed) margins, and long leafstalks}}

{{Flower|Unisexual|The calyx, 3–4 millimetres (0.12–0.16 in) long|Yellow|four Four stamens|The flowers bloom on racemes at the end of branches and the main stalk in August and September}}

{{Fruit||7–10 mm (0.28–0.4 in.) long pome|clearly Clearly grooved lengthwise, Lowest hooked hairs aligned towards crown|With hooked hairs|}}

The plant was introduced into Korea before the Unified Silla era, when it started to be widely cultivated.In its natural state, the yield of perilla is not high. If the stem is cut about 5 centimetres (2.0 in) above ground level in summer, a new stalk grows and it produces more fruit. Leaves can be harvested from the stem cut off in the summer, as well as from the new stalk and its branches, throughout summer and autumn. The seeds are harvested in autumn when the fruits are ripe<ref name="How to plant/cultivate"/>

{{Commonly seen|Pastures and fields}}, {{Commonly seen|dry Dry land}}, {{Commonly seen|along Along roadsides}}.

<ref name="chemical composition">[https://altnature.com/gallery/perilla.htm "Herb Constituents"]</ref>

<ref name="How to plant/cultivate">[https://en.wikipedia.org/w/index.php?title=Perilla_frutescens&action=edit&section=12 "Cultivation"]</ref>