为全面了解青海省菊科（Asteraceae）植物资源现状，对青海省菊科植物的属种组成、地理成分、生活型、药用植物、濒危种和特有种、外来入侵植物、饲用植物及区域物种相似性进行统计分析。结果表明：青海省菊科植物共有71属346种（含亚种和变种，下同），其中风毛菊属（Saussurea DC.）种数最多（76种），蒿属（Artemisia Linn.）次之（66种）；这些植物中，属数占比最高的为单种属（45.1%），种数占比最高的为多种属（64.2%）。青海省菊科植物的分布区类型可分为10个分布型和11个变型，其中旧世界温带分布型的属数和种数占比均最大。多年生草本在青海省菊科植物中占有绝对优势（占比78.0%）。共有199种菊科植物具有药用价值，且这些植物以全草入药为主，药用功效以清热解毒、活血化瘀、止血为主。青海省菊科植物中，濒危种只有黄花合头菊〔Syncalathium chrysocephalum (C. Shih) C. Shih〕1种，易危种有4种，其中水母雪兔子(Saussurea medusa Maxim.)为国家二级重点保护野生植物；中国特有种和青藏高原特有种分别有149和99种；外来入侵植物有5种。具有饲用价值的菊科植物共有114种，其中蒿属和风毛菊属种类较多（分别为25和23种）。青南高原、祁连山地和柴达木盆地之间的Jaccard相似性系数较低，均在（0.25，0.50］之间，说明3个地区的菊科植物种类较不相似。综上所述，青海省蕴藏着丰富的菊科植物资源，这些植物的地理成分复杂多样，地区间的物种相似性低；并且，这些植物以多年生草本为主，药用和饲用植物资源丰富，但外来入侵植物较少。

To comprehensively understand the current status of Asteraceae resources in Qinghai Province, statistical analyses were conducted for genus and species composition, geographical elements, life forms, medicinal plants, endangered and endemic species, alien invasive plants, forage plants, and regional species similarity of Asteraceae in Qinghai Province. The results show that there are 346 species (containing subspecies and variety, the same below) of Asteraceae belonging to 71 genera in Qinghai Province, among which Saussurea DC. has the most species (76 species), followed by Artemisia Linn. (66 species); among these plants, monotypic genus has the highest genus number proportion (45.1%), while polytypic genus has the highest species number proportion (64.2%). The areal types of Asteraceae in Qinghai Province can be classified into 10 types and 11 subtypes, among which both of the proportions of genus and species numbers of Old World Temperate type are the largest. Perennial herbs are absolutely dominant in Asteraceae in Qinghai Province (accounting for 78.0%). A total of 199 Asteraceae species possesses medicinal values, and the whole plants of these species are the predominantly utilized in traditional medicine, and their medicinal efficacies are primarily for heatclearing and detoxifying, invigorating blood and dissolving, and hemostasis. Among the Asteraceae in Qinghai Province, only Syncalathium chrysocephalum (C. Shih) C. Shih is endangered, while four species are vulnerable, among which Saussurea medusa Maxim. is a national second-class key protected wild plant; there are 149 Chinese endemic species and 99 Qinghai-Tibet Plateau endemic species, respectively; while alien invasive plants are five species. A total of 114 Asteraceae species possesses feeding value, among which Artemisia and Saussurea species are relatively abundant (which are 25 and 23 species, respectively). The Jaccard similarity coefficients among the South Qinghai Plateau, Qilian Mountain Region, and Qaidam Basin are relatively low, which are all within the range of (0.25, 0.50］, indicating that the species of Asteraceae among the three regions is relatively unsimilar. In conclusion, Qinghai Province is rich in Asteraceae resources with complex and diverse geographical elements and low species similarity between regions; in addition, these species are predominantly perennial herbs, with abundant medicinal and forage plants but few alien invasive plants.