I want to make sure I reference this correctly,
White Hmong in Laos, .... they take their names I am told from the clothes they were there are even "flowery Hmong".
Vietnam and Laos
The Hmong groups in Vietnam and Laos, from the 18th century to the present day, are known as Black Hmong (Hmoob Dub), Striped Hmong (Hmoob Txaij), White Hmong (Hmoob Dawb), Leng Hmong (Hmoob Leeg) and Green Hmong (Hmoob Ntsuab). In other places in Asia, groups are also known as Black Hmong (Hmoob Dub or Hmong Dou), Striped Hmong (Hmoob Txaij or Hmoob Quas Npab), Hmong Shi, Hmong Pe, Hmong Pua, and Hmong Xau, Hmong Xanh (Green Hmong), Hmong Do (Red Hmong), Na Mieo and various other subgroups.[44] These include the Flower Hmong or the Variegated Hmong (Hmong Lenh or Hmong Hoa), so named because of their bright, colorful embroidery work (called pa ndau or paj ntaub, literally "flower cloth").[45]
https://en.wikipedia.org/wiki/Hmong_people#Vietnam_and_Laos
Then, at the bottom of the page, it says this in references:
W.R. Geddes. Migrants of the Mountains: The Cultural Ecology of the Blue Miao (Hmong Njua) of Thailand. Oxford: The Clarendon Press, 1976.
Blue Hmong or Blue Miao (Miao is Hmong in China).... but if I see a Miao in China (it is spelled differently there) vs. a Hmong in Laos, clothes may be similar but they may appear different, say, as in Latin Americans, Mexicans, El Salvadorans and so often, often are distinguishable from where they come from.
This all gets too involved, Hmong or Miao are also related to some other ethnic "hill tribe", I forget the name.
There's lots of hill tribes over there, just like you mentioned, Montagnards, the Karen people of whom we have spoken of and so on.
Here this picture says it is of Hmong in Thailand, so they are there too;
https://allpointseast.com/blog/tour-info/thailand/blue-hmong/
The Blue Hmong of Thailand
15 March 2011
Posted by Mark Ord
According to this article the word for blue and green is the same in Hmong, though I reckon that probably depends on which Hmong dialect one’s referring to and our White Hmong mate says that’s nonsense! There is certainly some confusion between Green and Blue Hmong though, and indeed the aforementioned article also categorizes the Black Hmong of Sapa as belonging to the Blue Hmong linguistic group. (Though Vietnamese local guides will tell you there are ‘Blue’ villages near Dien Bien Phu and Son La?)The Blue Hmong of Thailand
Just that little bit tells one how it is complicated.
Cambodia, yes, apparently the page below does say they do have some Hmong.
Ethnic groups in Cambodia
From Wikipedia, the free encyclopedia
The largest of the ethnic groups in Cambodia are the Khmer, who comprise approximately 90% of the total population and primarily inhabit the lowland Mekong subregion and the central plains.
The page also says they have some Yao, now I remember, that's the group that is a bit related to the Hmong.
The origins of the Yao can be traced back 2000 years starting in Hunan. The Yao and Hmong were among the rebels during the Miao Rebellions against the Ming dynasty. As the Han Chinese expanded into South China, the Yao retreated into the highlands between Hunan and Guizhou to the north and Guangdong and Guangxi to the south, and stretching into eastern Yunnan.[1] Around 1890, the Guangdong government started taking action against Yao in northwestern Guangdong.[2]
https://en.wikipedia.org/wiki/Yao_people#Early_history
See, it's lots of study, both Miao and Yao per above, migrated out of China, mainly from what I know is because they were persecuted.
Miao moved out of China and simplifying, then become the Hmong... and that above, I'm sure, is pretty complex at that even.
