Systematics Study on a Morphotype of Allium tuberosum Rottler ex Spreng. (Alliaceae) from Ladakh, India

A morphotype of chinese chives (Allium tuberosum Rottler ex Spreng.) with pink mid-vein in white tepals on the abaxial surface growing in Leh, Ladakh (Jammu & Kashmir), India was studied on a comparative account with common type A. tuberosum (white tepals with green mid-vein) and a close wild relative, A. ramosum L. Allium subg. Butomissa (Salisb.) N. Friesen is discussed here with reference to taxa in India based on the study undertaken using observations from field, experimental, ecogeographical, herbarium and molecular data. A key is provided with some characters previously not included in the available diagnostic keys. Issues relating to use of terminology for plant characters are provided to the facilitate fi eld identification.