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宜昌桐,是我区一九七六年在华中农学院园林系师生们的协下作,开展泡桐种类资源调查时,初次发现的。那次调查,不仅查明了我区有白花泡桐、兰考泡桐,川桐、毛泡桐、山明桐,还有很多生长特点和形态特征不同的个体和类型,宜昌桐就是这些类型中,生长最好,最引人瞩目的一种。宜昌桐的特点,不仅是生长快,自然接干性能好,而且树姿挺拔,主干园满通直,均为我区现有其他泡桐所不能及。但那次调查,发现宜昌桐的分布地区,主要是宜昌市,树龄大都只有10—20年生左右。宜昌县当时仅发现少数几株,其它各县则迄今均未发现。因此,对于宜昌桐的来历,便产生了不少疑问,即宜昌桐到底来源于何处,如果说,宜昌桐是另一个桐种或类型,那么它一定有一个较长的生繁历史,其分布范围,则不应局限于宜
Yichang Tong, my district in 1976 in Huazhong Agricultural College faculty and students under the co-operation, to carry out Paulownia species resources survey, first discovered. That survey, not only identified my area has white Paulownia, Paulownia Paulownia, ChuanTong, Paulownia, Sham Tung, there are many different growth characteristics and morphological characteristics of individuals and types of Yichang Tong is the most growth Well, the most eye-catching one. Yichang Tong characteristics, not only grow fast, good natural dry performance, but Shuzhu tall and straight, full of straight through the main garden, are my area can not be other existing Paulownia. But that survey found that the distribution of Yichang Tong, mainly Yichang City, most of the age of only about 10-20 years old. At that time, only a few strains were found in Yichang County, and so far none of the other counties was found. Therefore, the origins of Yichang Tong, they have a lot of questions, that is, Yichang Tong in the end come from, if Yichang Tong is another Tong species or type, then it must have a longer life history, the Distribution, it should not be limited to the appropriate