Towards a better knowledge on the Cruciferae diversity in Uzbekistan

The paper presents updates of the knowledge on the species diversity and distribution of the mustard family (Cruciferae, or Brassicaceae) in Uzbekistan and Middle Asia in general, predominantly based on authors’ collections of 2023–2024. Most of the novelties regard alien plants that include national records of Diplotaxis muralis and Hirschfeldia incana, both representing new genera in the flora of the country (Diplotaxis in Middle Asia as a whole) as well as updated data on the distribution of Brassica napus, Camelina sativa, Cardamine hirsuta, Sisymbrium officinale and S. orientale in Uzbekistan; the latter is also newly found in Tajikistan. For native Draba kuramensis, Lepidium tianschanicum, Parrya pinnatifida, P. tojibaevii, Scapiarabis popovii and Strigosella latifolia, additional localities are adduced including the first collections of Draba kuramensis documenting its occurrence in Uzbekistan. Besides, the presence of Sisymbrium orientale in Turkmenistan along with the absence of Brassica nigra in Uzbekistan (and Middle Asia) and Cardamine densiflora in Tian Shan and Kazakhstan are commented.