Here are a few photographs of Vietnamese landrace cannabis from another website.
Those almost look like chinese hemp from Yunnan regions, where the hemp grows wild everywhere as well as there is an amazing hemp cultivation tradition. I googled now the Mèo Vac place and it's in right the Vietnam/China border.
They are for sure different than the more tropicalish strains from Da Lat, Nha Trang or Ho Chi Minh... which probably are nicer for the smoker too!
Plants look beautiful... the bare stalks remind me to the Nepalese plants seen on pictures as well. Gotta love those trees!