Note 2 — Chapter V · FROM TASHILHUNPO TO YAMDO SAMDING, AND THENCE TO LHASA.
Reading edition
I think our author was misinformed. Rampa (Polygonum viviparum, L.) does not grow as described here. Rampa seed is eaten, after being parched and ground, mixed with tsamba. Choma (Potentilla anserina), also eaten all over Tibet wherever it occurs, is dug out of the ground; it is not a grain, however, but a small root. I think Chandra Das must refer to choma, though it is a small tuber not over 1½ inches long.—(W. R.) ↑