センブリ属植物の生態と栽培(第2報) : 山口県秋吉台における調査(2)

概要

論文の詳細を見る
Some results of survey on the habitat of Swertia japonica have already been reviewed. In the present paper, we report again that this plant is adapted to the following environmental conditions showing the following ecological characters. 1) Soil and nutrient: The soil on which S. japonica grows well is shallow and poor terrarossa. Therefore, the other plants do not grow well. They are small in standing crop and low in height. 2) Vegetation: S. japonica was not found to form a single colony. Usually it grows with other plants, especially with Gramineae. Haloragis micranth was found to grow on the soil which is suitable for the growth of S. japonica. 3) Individual density: Ten to sixty plants of S. japonica grows per 1 m^2. 4) Seed production: Two year-old S. japonica produces seeds about 10 % of its air dried weight.
日本生薬学会の論文
1977-06-20