九龙大白茶是我县1963年从松溪县郑墩镇双源村九龙岗茶树有性群体中，经单株选育而成的无性系茶树新品种。九龙大白茶小乔木型，大叶种，平均叶长12．6cm，最大叶长16cm，平均叶宽5．05cm，最宽6．7cm，长宽比从2．07到2．86，平均2．43。叶椭圆形，锯齿明显，21～38对，平均29 Kowloon is a large white tea in 1963 from Songxi County Town Pier Shuang Yuancun nine Longgang tea tree sexual groups, the single strain of clonal tea new varieties. Jiulong white tea small arborvitae, large leaf species, the average leaf length 12.6cm, maximum leaf length 16cm, the average leaf width 5.05cm, the widest 6.7cm, aspect ratio from 2.07 to 2.86, an average of 2 .43. Leaves oval, serrated obvious, 21 to 38 pairs, an average of 29