Yamajiso

Japanese: ヤマジソ

An annual plant of the Lamiaceae family. It grows in the fields and mountains of Hokkaido to Kyushu and Korea. The stems are about 30 cm tall, and the leaves are opposite, long ovate, and have short stalks. From summer to autumn, flower spikes appear at the ends of the branches, and small, pale pink, lip-shaped flowers bloom next to the oval bracts. The calyx has five lobes and the lobes are the same shape. The closely related Himejiso resembles Yamajiso, but has hairs at the nodes of the stem, lanceolate bracts, and lip-shaped calyx. Inukoju resembles Himejiso, but the stems and leaves are often tinged purple, have fine hairs, and have no hairs at the nodes. Both are distributed throughout Japan.

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

シソ科の一年草。北海道〜九州，朝鮮の野山にはえる。茎は高さ30cm内外，葉は対生し長卵形で短い柄がある。夏〜秋，枝先に花穂を出し，卵形の包葉のわきに淡紅色の小さな唇形(しんけい)花を開く。萼は５裂し裂片は同形となる。近縁のヒメジソはヤマジソに似るが，茎の節に毛があり，包葉は披針形，萼は唇形となる。イヌコウジュはヒメジソに似るが，茎葉は紫色を帯びることが多く，細毛があり，節に毛がない。ともに日本全土に分布する。

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