センブリ属植物の生態と栽培(第1報) : 山口県秋吉台における調査(1)

概要

論文の詳細を見る
The range of distribution of Swertia japonica in Akiyoshidai Plateau does not extend evenly all over, but it is limited to its suitable places, which form a S. japonica producing grassland. As the result of survey, S. japonica is adapted to the following environments and has the following ecological characters. 1) Inclination of land : S. japonica grows mainly on the top or on the mid-slope of the mountain which is wind-swept, but it only few on the steep slope or the lower part of the slope where Miscanthus sinensis and Imperata cylindrica grow thickly. 2) Soil moisture and soil pH: The land suitable for the growth of S. japonica is comparatively arid and slightly acidic (pH 6.0-6.5) near to neutral. 3) Light intensity: S. japonica grows mainly on the ground not fully but partly covered by the plants. Hence, S. japonica is a sun plant. 4) Distribution of S. japonica and Gentiana scabra var. buergeri: G. scabra and S. japonica grows under almost the same condition.
日本生薬学会の論文
1977-06-20