Lasiocaryeae

Chacón, Juliana, Siwakoti, Mohan, Hilger, Hartmut H. & Weigend, Maximilian, 2017, Dwarves on the roof of the world: A taxonomic revision of the Himalayan Lasiocaryeae Weigend (Boraginaceae), Phytotaxa 297 (1), pp. 1-14 : 7

Key to the genera of tribe Lasiocaryeae

1. Plants perennial, forming a dense cushion, without a basal rosette; leaves spathulate, with rounded apex; flowers appearing singly from the cushion ............................................................................................................................................................. Chionocharis

1’. Plants annual, not forming a dense cushion, forming a short-lived basal rosette; leaves ovate, with acuminate apex; flowers in scorpioid cymes or umbellate inflorescences with long pedicels......................................................................................................2.

2. Pedicels 2–3 x as long as the corresponding bracts; nutlets glabrous, adaxial surface free except for a subcircular to ovate-triangular cicatrix, cicatrix 0.2–0.3 mm long ............................................................................................................................. Microcaryum

2’. Pedicels 0.25–1 x as long as the corresponding bracts; nutlets shortly hispid, with parallel, transverse rows of hairs, adaxial surface largely coherent to gynobase, cicatrix 0.7–0.8 mm long ................................................................................................. Lasiocaryum