Road (Highway S217) from Litang to Sandui Xiang, north-northeast of Sandui; Haizi Shan. Glacial boulder-strewn area with rivulets, small ponds and wet depressions; vegetation dwarf (ca. 0.5 m tall) Salix and Rhododendron and gravelly openings. Granite bedrock. 4380 m. elev.

Collectors

Christopher Davidson, David E. Boufford, Sharon R. Christoph, Xin-Hui Ll, Tao Yang

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Caryophyllales

Family

Polygonaceae

Genus

Rheum

Specific Epithet

delavayi

Authorship

Franch.

Taxonomic Opinions

GBIF WFO POWO

Conservation (EDGE)

What is EDGE?

Evolutionary distinctiveness

Lower

ED 1.1

Part of a well-represented branch of the plant tree of life, with many close relatives.

Threat status

Predicted not threatened

Modelled estimate

EDGE score

0.1

Global rank

#263,960 of 335,497

Top 79%

Extinction probability

10%

Source: Flowering plants EDGE assessment →