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Impatiens occultans Hook. f. (Balsaminaceae) is newly recorded for China, from Gyirong County, Xizang Province. A morphological description and notes on its distribution and ecology are provided. A phylogenetic analysis yields a placement of the species that it is sister to I. tuberculata (sect. Racemosae) with which it agrees in having a navicular lower sepal without a spur and 4-colpate pollen grains, but differs in elliptic leaves, 1-flowered racemes, 4 lateral sepals and glabrous capsules.

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A new species of Boraginaceae, Onosma lhokaensis, is described and illustrated from Xizang, China. The new species closely resembles O. waddellii and O. waltonii in having azure corollas, coherent anthers and glabrous filaments, but differs in having particularly bristly indumentum, observably narrow corolla, longer calyxes and anthers, and remarkable nutlets with stipitate cicatrix. An updated key to the species of Onosma known from Xizang is also provided.

Eritrichium aktonense Y.S.Lian & J.Q.Wang described from Aketao in southern Xinjiang is conspecific with E. subjacquemontii, a very widely spread and highly variable species in Pamirs, central Asia. We propose to synonymize Eritrichium aktonense with E. subjaquemontii.

Eritrichium lasiocarpum W.T.Wang is reduced as a new synonym of E. minimum (Brand) H.Hara, and the basionym of the letter, Hackelia minima Brand is lectotypified.

Eritrichium aktonense Y.S.Lian & J.Q.Wang has been previously placed in synonymy within E. longifolium Decne. in Flora of China. However, based on our examinations of specimens and bibliographies, combined with field observations, E. longifolium is shown to be significantly different from E. aktonense, but to be conspecific with E. petiolare var. villosum W.T.Wang.

Examination of specimens and literatures show that Onosma dolichoutum W.T.Wang, described from Jilong County in southern Xizang, China, matches perfectly the type of O. bracteatum Wall., a common species distributed in subalpine and alpine zones in Western Himalaya. Therefore, we place the former in synonym of the latter. We also designate the lectotype for O. bracteatum. This species is a new record for China.