The distribution area is mainly the acid yellow soil, and associated species is mainly masson's pine.
分布区主要为黄壤类酸性土，伴生树种主要为马尾松。
All cultivars had good adaptability, suitable for growing on acid yellow soil in hilly land in Guizhou Province.
各品种均表现出良好的适应性和抗逆性，适宜在贵州低山丘陵酸性黄红壤地区种植。
North American annual plant with usually yellow or orange flowers; grows chiefly on wet rather acid soil.
北美一年生植物，花通常黄色或橙色；主要生长在潮湿酸性土壤中。
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