R. mekongense var mekongense Viridescens Group 'Doshong La'
Species selection of R. mekongense var mekongense Viridescens Group
| Selected By | Cox, P.A. & K.N.E. |
| Introduced | 1972 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | openly funnel-shaped |
| Predominant Colour | ? |
| Leaves | elliptic |
| Winter Foliage | ? |
| Hardiness | ? |