Talk:Hang kra rog

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Page scope

Hang kra rog covers the Thai name hang kra rog (หางกระรอก): its spellings, the plant the name refers to, the line registered as Hang Kra Rog Phu Phan ST1, the name's use in Thailand's medical cannabis programme since 2019, the chemical and genetic studies that use it, and seed sold under it. The second Sakon Nakhon type, hang suea (หางเสือ), is a section of this page. The wider history of cannabis in the region belongs to Phu Phan, Sakon Nakhon Province and Northeastern Thailand; the exported product to Thai stick.

Data verification

Record source conflicts, dating problems and sources not used here. Keep narrative content on the article.

Discussion

Sources and how they were read

Department of Agriculture notice (July 2021). The published applications for three plant-variety certificates, Hang Kra Rog Phu Phan ST1, Hang Suea Sakonnakhon TT1 and Tanao Si Kan Khaw WA1, were read in the department's PDF: pp. 2–11 for hang kra rog and pp. 12–18 for hang suea. The day of the month on the cover is handwritten; the article gives the month only. The PDF's text layer drops Thai tone marks, so the passages used were checked against images of the pages.
Studies. Kamoltham and others (2025), Pongnaratorn and others (2025), Charoenchai and others (2023), Srikul and others (2026), Hongsuwan and others (2022) and Dechlay and others (2025) were read in their open-access PDFs; Kraisittipanit and others (2025) at pp. 63 and 69–70.
Press. The Thai reports (Matichon 7 March 2019, Thai PBS 19 December 2019, Sentang Sedtee 28 December 2019, Komchadluek 1 January 2020, Post Today 18 November 2020, Naewna 5 March 2021, InfoQuest 6 May 2021, Thansettakij 27 January 2022, MGR Online 10 November 2009) were read on the outlets' own pages. InfoQuest carries the Department of Medical Sciences' release of 6 May 2021.
National Farmers Council (1 April 2019). The council's release was read on its own site in October 2026; the same remarks are reported by Technology Chaoban (Khaosod, 2 April 2019). Only the three type names are used, not the speaker's claims about where the types spread.
SeedFinder. The breeder page of Prempavee Thai Landraces was read on 21 October 2026. Its statements are the seller's and are attributed.

Title and spellings

The title follows the registration's romanisation, Hang Kra Rog, in sentence case. Hang Kra Rok (Srikul and others 2026) and Hang Krarok (Kraisittipanit and others 2025; Watanakul and others 2024; seed lots) redirect here, as do Hang Kra Rog Phu Phan and the registered name. No redirect is made from an English translation.
The registration also uses Hang Kra Rog Sakon Nakhon for the folk type and Hang Kra Rog Phu Phan for the line; the 2025 genome study writes Hang Kra Rog Phu Phan without the suffix for plants from a licensed site, without saying whether they were the registered line.

Where the sources differ

THC and CBD. The registered line is chemotype 2, about 1:1 (6.06 and 6.54 per cent mean). Kamoltham and others (2025) call Hang Kra Rog Phu Phan high in THC; Charoenchai and others (2023) found every market sample THC-dominant; Srikul and others (2026) found 5.05–6.58 per cent THC and at most 0.22 per cent CBD. The article gives each figure with its source and does not decide which plants the market and research samples came from.
Dates of the third generation. The notice gives 24 July 2020 in its narrative (p. 4 for hang kra rog, p. 14 for hang suea) and 24 September 2020 in its timeline tables (pp. 5 and 16). The article gives the year only.
THC of the hang suea line. The notice gives a mean of 5.03 per cent; its per-generation means (5.96, 3.02 and 5.77) average about 4.92. The article gives the notice's own figure.
Scent of hang suea. The registration says orange peel; the Kasetsart taxonomist in 2019 said lemon. Both are given.
Thai stick. The president of the Cannabis Council of Thailand (Komchadluek, 25 March 2019), Hongsuwan and others (2022), Pongnaratorn and others (2025) and the seller Prempavee equate hang kra rog with Thai stick or with the plants used to make it. None gives evidence for the link; the article attributes each statement. The council president's sentence was reprinted word for word by later reports (Siamrath 2019, under another speaker's name; Naewna 2021), so it counts as one statement.

The meaning of hang suea

No source read says what hang suea is named after. The registration, the Department of Medical Sciences' release, Mahidol University's 2022 article and Dechlay and others (2025) all compare the inflorescence to a หางเสือ (คล้ายหางเสือ) without explaining the word, and the article quotes that comparison in Thai. Seed sellers translate the name "Tiger Tail" (Prempavee Thai Landraces on SeedFinder, among others), and an English rendering of the Department of Medical Sciences' release on a herbal retailer's site compares the inflorescence to "a rudder"; neither cites a basis, and neither is used. The infobox gives no meaning for hang suea.

Not used, and why

Seller and forum statements on lineage and potency (cup wins, crosses with Afghan lines, "best in the world"): not used. The Naewna and National Farmers Council superlatives are given only as attributed statements or not at all.
"Old medical texts." The official who said in 2019 that old texts named a quality cannabis called hang kra rog in Sakon Nakhon did not name the texts, and no text using the name was found. The statement is attributed to him.
A Department of Thai Traditional and Alternative Medicine page on root samples of hang kra rog, hang suea and mixed lines in Nakhon Phanom could not be opened (the host blocks access) and is not used.
English-language sources. No English-language use of the name before 2019 was found. The earliest English press use found is a Thai news agency report of 21 June 2021 naming the four Department of Medical Sciences cultivars.

First recorded

The infobox gives 2019, the year of the earliest source on the page that uses the name (Matichon, 7 March 2019). A Thai Cannabis Council announcement reported by Komchadluek on 25 March 2019 already equated the name with Thai stick. No earlier printed use of หางกระรอก for cannabis was found; the official's "old texts" were not identified. Hang suea appears in a press report of 2009 (MGR Online, Mukdahan).
Registration. The notice of July 2021 publishes the application; no certificate number or date of grant was found. The article gives the earliest date by which the line is reported as registered (January 2022).

Seed lots and the accession list

The infobox lists accessions whose synonyms contain "Hang Krarok" or whose descriptive name contains "Squirrel Tail", the English name the seed lots use. Some of these lots also list Hang Suea and Foytong among their synonyms.