[Objective] The aim was to understand the geographical element of herbaceous floristic in Guangdong MB Polytechnic College.[Method] The distribution of herbaceous floristic in Guangdong AIB Polytechnic College was investigated and analyzed by analysis methods of geographical components of flora.[Result] There were 170 species of herbaceous plants in Guangdong AIB Polytechnic College (North Campus),belonging to 51 families and 128 genera.The floristic composition and distribution of flora on campus geography herb showed that campus herbs had obvious tropical,among them the tropical families accounted for 91.3％,and the tropical genera accounted for 87.3％.The tropical distribution of the family (15 families) and genera (54 genera) had the largest proportion,respectively,and was between 65.2％ and 53.0％.Secondly,campus herbaceous plants of angiosperms occupied a great advantage,and the gynmosperm quantity was less,only 11,accounting for 6.5％;plant dominant families and genera were Asteraceae (24 genera) and Bambusa (6).From the herb source,the Chinese native plants had 87 species,accounting for 51.2％ of the total species,and had 83 species of exotic plants,accounting for 48.8％ of the total species,among them 46 kinds belonged to the invasive plants,accounting for 55.4％ of the exotic plants.[Conclusion] It can be seen that there are a large number of invasive plants in the campus,and their large distribution wilt affect the normal growth of many native plants,and affect the biodiversity of a region.%[目的]了解广东农工商职业技术学院北校区草本植物的地理成分.[方法]通过调查广东农工商职业技术学院北校区草本植物,应用植物区系地理成分分析方法分析了校园草本植物的分布和运用情况.[结果]广东农工商职业技术学院(北校区)的草本植物有170种,隶属于51个科,128个属.校园草本植物具有明显的热带性,处于热带分布的科占91.3％;处于热带分布的属占87.3％.其中,泛热带分布的科(共15科)和属(共54属)都占有最大比例,分别是65.2％和53.0％.校园草本植物中的被子植物占据极大的优势,裸子植物数量较少,只有11种,占6.5％;植物优势科和优势属分别是菊科(含24属)和簕竹属(含6种).从校园草本植物来源来看,中国乡土植物有87种,占总种数的51.2％;外来植物83种,占总种数的48.8％,其中属于入侵植物的有46种,占外来植物的55.4％.[结论]该校园中存在着大量的入侵植物,它们的分布将影响很多乡土植物的正常生长,且影响一个地区的生物多样性.
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