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Scutellaria rubropunctata

Scutellaria rubropunctata

Scutellaria rubropunctata

Scutellaria rubropunctata

Scutellaria rubropunctata

Scutellaria rubropunctata

Scutellaria rubropunctata

わが国の奄美群島と沖縄群島の固有種です。山地の林縁や草地に生え、高さは10〜30センチになります。茎は基部が地面を這って、先は立ち上がります。葉は三角状卵形で、表面には短毛が生え、葉裏には赤褐色の腺点が密にあります。1月から5月ごろ、茎頂や枝先に偽総状花序をだし、淡紫色から青紫色の唇形花を咲かせます。果実は卵球形の分離果で、鈍い突起があります。
シソ科タツナミソウ属の多年草で、学名は Scutellaria rubropunctata。英名は Red-spotted skullcap。
The Red-spotted skullcap (Scutellaria rubropunctata) belongs to Lamiaceae (the Mint family). It is a perennial herb that is endemic to Japan's Amami and Okinawa archipelagos. It grows along the edges of mountain forests and in grassy areas, reaching a height of 10 to 30 cm. The stem creeps along the ground at the base and rises upright toward the tip. The leaves are triangular-ovate, with short hairs on the upper surface and dense reddish-brown glandular dots on the underside. From January to around May, it produces pseudo-racemes at the stem apex and branch tips, bearing pale purple to blue-purple lipped flowers. The fruit is an ovoid schizocarp with blunt projections.
茨城県つくば市「つくば実験植物園」にて、2026年03月28日撮影。

Shu Suehiro
shu@botanic.jp