Study on the Karyotype of Six Sandy Subshrub Species of Artemisia L.
The chromosome numbers and karyotype of six sandy subshrub species of Artemisia L. Distributed in Northern China were studied by conventional cytogenetic method and karyotyping software. The results show that the chromosome numbers of A. Halodendron, A. Intramongolica, A. Ordosica and A. Songarica are 36 and the formula is 2n=4x = 36m. While it is respectively 18 and 2n=2x=18m for A. Sphaerocephala and A. Wudanica. The karyotype of the six species all belong to "1A" type. The chromosome numbers and ploidy of four species except for A. Ordosica and A. Songarica are the same as the report before.