Analyzing in terms of genera, there are 19 genera each embracing over 15 species. Among them, the distribution is given below:
Genera Species
Corydalis 50
Saussurea 37
Ptericularis 32
Berberis 32
Polygonum 28
Gentiana 27
Saxifraga 32
Aconitum 27
Rheum 21
Clematis 18
Thalictrum 18
Rhododendron 17
Allium 23
Swertia 17
Lagotis 16
Rhodiola 15
Rubus 15

When comparing this with that of the old classic Shel gong shel phreng, which includes 836 species (2,293 kinds of materia medica), now there are 2,085 species (some reports have 2,600 species), so that the species have been very much expanded, opening up the second and third tier exploitation.

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