Category Perennial
Rheum australe
Open slopes on rocky ground at elvations of 3200 – 4200 metres. Grassy slopes at elevations of 3400 – 4300 metres in Tibet. Love
Rheum palmatum
Scrub and rocky places and by streams, 2500 – 4000 metres. Slopes and valleys at elevations of 1500 – 4400 metres in western and northern China. Love