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By: Shah, Sayed Afzal - Sultan, Amir - Wen, Jun - Ullah, Zahid - Nisa, Surat Un - Ren, Zhumei - Alam, Muhammad Maqsood - Iqbal, Javed - Mumtaz, Abdul SamadType: ArticleIn: PhytoKeysVolume: 179Series:Issue:Date: 2021Page Range: 35--73Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-Subjects: Afghanistan asclepiads endemic species India Pakistan taxonomic revision Tylophorinae typification