Wendelbo (l.c.) recognized Eremurus himalaicus Baker and Eremurus aitchisonii Baker as two distinct species. In the two separate keys for flowering and fruiting material, he has used the tepal colour, the capsule diameter, size of the seed wing and breadth of the leaves. In Eremurus himalaicus the tepal colour is stated to be white, whereas in Eremurus aitchisonii it is stated to be pink or rose coloured. Unfortunately the flower colour, in most of the cases is not mentioned on the labels. In Eremurus himalaica, the capsule is stated to be c. 14 mm in diameter, the seeds are narrowly winged and the leaves are 15-45 mm broad, whereas, in Eremurus aitchisonii the capsule is 15-20 mm in diameter. Seeds are widely winged and the leaves may be as broad as 80 mm. As the capsule is not present in most of the cases and even when it is present, there is hardly any discontinuity between 14 and 15 mm. Likewise the seeds are rare to find and in the absence of any measurements, it is not possible to resolve whether the seeds are narrowly winged or widely winged. The breadth of the leaves is also not a reliable character. While collecting the material generally one picks up the material of a manageable size, rather than the specimen with the broadest leaf.