あつばくこ (厚葉枸杞) [Index] [Back] わが国の大東諸島および小笠原諸島、それにアメリカのハワイ諸島に分布しています。海岸の岩場に生え、高さは９０〜１２０センチになります。茎はよく分岐して、横に広がります。葉はへら形で厚く、黄緑色をしています。７月から９月ごろ、短枝の先端に淡紫色の花を咲かせます。花冠は漏斗形で、先端は４〜５裂しています。果実は球形の液果で、赤色に熟します。別名で「はまくこ（浜枸杞）」とも呼ばれます。 ナス科クコ属の常緑小低木で、学名は Lycium sandwicense。英名は Hawai'i desert-thorn。 The Hawai'i desert-thorn (Lycium sandwicense) belongs to Solanaceae (the Nightshade family). It is an evergreen shrub that is found in Japan's Daito Islands and Ogasawara Islands, as well as in the Hawaiian Islands of the United States. It grows on rocky coastal areas and reaches a height of 90 to 120 cm. The stems branch profusely and spread out horizontally. The leaves are spatulate, thick, and yellowish-green in color. From around July to September, it produces pale purple flowers at the tips of short branches. The corolla is funnel-shaped, with the tip divided into 4 to 5 lobes. The fruit is a spherical berry that ripens to a red color. It is also known by the alternative name "hama-kuko" in Japan. 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