A perennial plant of the Scrophulariaceae family, widely distributed in the temperate zone of eastern Asia. It grows in sunny mountain grasslands. It grows to a height of about 30-60 cm. The leaves are alternate or opposite, narrowly ovate, 4-9 cm long with pointed tips, and have coarse, deep sawtooth edges. From August to October, reddish purple flowers bloom among small overlapping bracts at the top of the stem. The corolla is lip-shaped, about 2 cm long, and twisted to one side. In the high mountains of Japan, other species of the same genus include Miyamashiogama, Yotsubashiogama (Four-leaf Shiogama), and Takaneshiogama, but Shiogamagama is not found at high altitudes. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
ゴマノハグサ科の多年草で,アジア東部の温帯に広く分布する。山地の日当りのよい草地に生える。高さ 30~60cmほどになる。葉は互生または対生し,狭卵形で先はとがり長さ4~9cm,縁にあらく深い鋸歯がある。8~10月頃,茎の頂部に重なり合った小さな包葉の間に紅紫色の花をつける。花冠は唇形で長さ約 2cmほどあり,一方にねじれる。日本の高山には同属のミヤマシオガマ,ヨツバシオガマ (四葉塩竈),タカネシオガマなどがあるが,シオガマギクはあまり高地にはみられない。
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