วันจันทร์ที่ 6 กรกฎาคม พ.ศ. 2569

Loei flora

 Loei

"เลย" is one of the top attractive province in the northeast of Thailand. Full of many interesting activities, whether it be a chilled vacation by Mekong river, or climbing up the mountain summits whose are covered by fog and abundant of varied flora, or visiting historical site and enjoy some ancient art. The most important thing is “Loei” is a nice and small town, people are kind and cheerful. Therefore “Loei” attracts every generation of tourists.

Visit just once and you will fall in love with “Loei”.      


Loei (Thaiเลยpronounced [lɤ̄ːj]), is one of the more sparsely populated provinces(changwat) of Thailand. It lies in the Isan region of upper northeastern Thailand. Neighboring provinces are (from east clockwise) Nong KhaiUdon ThaniNong Bua LamphuKhon KaenPhetchabun, and Phitsanulok. In the north it borders Xaignabouliand Vientiane province of Laos. Loei was founded by a Thai tribe from the Kingdom of Yonok Chiang Saen. Khun Pha Muang founded the village of Dan-kwa, and Bang Klang Hao founded Dan Sai. Drought and disease later led to the villagers move to the site of present-day Loei.


Explore Chiang Khan Walking Street and the night market


This busy street runs parallel to the Mekong River in the Chiang Khan municipality and both sides of the road are lined with houses, most of them two-storey and wooden in construction, some of which have been converted into guesthouses, small hotels, restaurants and souvenir shops. Each morning on the walking street locals come to partake in ‘Tak Bat Khao Niao’, an alms-giving ceremony passed down from the ancestors. Visitors wishing to present the monks with sticky rice as part of the ceremony should ask at their accommodation or buy some from the vendors roadside who set up around dawn Walking street is open from 16.00 hrs. daily and the morning alms-giving ceremony takes place between 05.30 – 06.30 each morning.

Phi Ta Khon is one of the unique Thai traditional festival of Loei province. It held annually in Dan Sai District and have been a long-preserved festival for the many generations. Phi Ta Khon parades are organized in the Bun Luang Festival or Bun Phra Wet Festival every July. These festivals are related to the belief and faith in Buddhism and the spirit of ancestors. Also, are related with Bun Phra Wet or a series of all 13 chapters of the Great Birth Sermon which is the big combination festival of merit making and Bun Bung Fai festival (the firing-rocket festival). There will be a parade of Phra Upakhut procession proceeds from Man River to Wat Phon Chai. A hundred of Phi Ta Khon or a people who is wearing mask and a unique costume will join this parade. These people must wear a scary ghost mask with a long and messy hair, and a unique colorful costume.

National parks

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There are four national parks, along with two other national parks, make up region 8 (Khon Kaen), and Na Yung–Nam Som in region 10 (Udon Thani) and Phu Hin Rong Kla region 11 (Phitsanulok) of Thailand's protected areas.(Visitors in fiscal year 2024)[13]

Na Yung–Nam Som National Park  397 km2 (153 sq mi)    (9,520)
Phu Pha Man National Park350 km2 (140 sq mi)  (37,404)
Phu Kradueng National Park348 km2 (134 sq mi)  (66,941)
Phu Hin Rong Kla National Park307 km2 (119 sq mi)  (223,790)
Phu Ruea National Park121 km2 (47 sq mi)  (78,909)
Phu Suan Sai National Park117 km2 (45 sq mi)  (13,942)

Wildlife sanctuaries

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There are three wildlife sanctuaries, two of which are in region 8 (Khon Kaen), and Phu Khat in region 11 (Phitsanulok) of Thailand's protected areas.


Phu Luang Wildlife Sanctuary897 km2 (346 sq mi)
Phu Khat Wildlife Sanctuary241 km2 (93 sq mi)
Phu Kho–Phu Kratae Wildlife Sanctuary  

232 km2 (90 sq mi)



Phu Kradueng mountain, made up of Jurassic and Cretaceous sandstoneformations, takes the form of a mesatowering some 1,000 meters above the surrounding valleys. The summit plateau is roughly square-shaped and 60 km2 (37,500 rai) in size, with an average elevation of about 1,250 meters. Sloping slightly to the north, its western, southern, and eastern edges are fairly straight and formed by abrupt sandstone cliffs, while the northern part is deformed in a more irregular shape, containing a number of streams and (seasonal) waterfalls. The summit itself, in the southwestern part of the plateau, is inconspicuous. The park occupies an area of 217,576 rai ~ 348 square kilometres (134 sq  mi)


Gesneriaceae



Loei province is a well-known biodiversity hotspot for the Gesneriaceae (gesneriad) family in Thailand. Its unique blend of limestone karsts, sandstone mountains like Phu Kradueng, and elevation gradients harb a wide variety of these shade-loving, often endemic, flowering plants. 
Notable Gesneriaceae species and genera found in Loei include:
  • Chayamaritia sirindhorniana: A recently described (late 2024) and highly localized endemic to the province, known specifically from its type locality in Loei. 
  • Microchirita suwatii: Described in 2023, this specific Gesneriad is known to inhabit karst limestone areas in the Phu Bo Bid Forest Park in Mueang Loei.
  • Microchirita luteola C.Puglisi  เลย หนองหิน สวนสวรรค ผางาม 
  • Microchirita aratriformis (D.Wood) A.Weber  
  • Oreocharis hirsuta: A succulent, pendulous herb that can be found clinging to rocks in oak forests, prominently at elevations around 1,300 m on Phu Kradueng. 
  • Paraboea species: Several unassigned or specifically identified Paraboea species (sometimes referred to locally by Thai naturalists) thrive on the shaded rocks of Loei's mountainous and limestone terrains. 
  • Paraboea thailandica ined.  ชาฤๅษีถิ่นไทย สวนหินผางามใกล้ผานกเค้า
  • Paraboea swinhoei (Hance) B.L.Burtt  ผานกเค้า
  • Paraboea harroviana var. harroviana ชาฤๅษีเล็ก เนียมฤๅษี ฝอยหิน หนาดหิน
  • Dorcoceras: Found naturally in rocky and mountainous micro-climates in Northeastern Thailand.
  • Didymocarpus biserratus barnett ดอกใบหยัก A succulent, pendulous herb with dark purple flowers that grows on rocks in oak forests, notably found in Phu Kradueng National Park.
  • Didymocarpus bicolor Craib ภูเรือ ภูหลวง
  • Didymocarpus purpureopictus Craib ภูเรือ ภูหลวง
  • Henckelia moniliformis เศวตนาด้วง หรือ ดาวสร้อยไข่มุก  พืชชนิดใหม่ของโลกที่พบในป่าโคกผาดำ อำเภอนาด้วง
  • Henckelia: Various species within this genus occur naturally in northeastern Thailand, including highly specific habitats found in Phu Ruea.
  • Microchirita aratriformis: พืชถิ่นเดียวที่พบได้ในบริเวณสวนหินผางาม (สวนสวรรค์) อำเภอหนองหิน
  • Aeschynanthus humilis Hemsl.

  • Microchirita sp. ม่วงเมืองเลย  วังสะพุง


Common Localities to Find Gesneriads in Loei:
  • Phu Kradueng National Park: Known for its plateau elevations around 1,300m, providing the perfect humid, shaded conditions for succulent, pendulous species. 
  • Phu Luang Wildlife Sanctuary: Rich in endemic flora where many original type specimens were collected. 
  • Phu Ruea National Park: Ideal for moisture-loving plants growing along high-altitude streams and rocky crevices. 
  • Doi Suwan Temple (Phu Kradueng): A specialized locality where unique regional plants, including certain Paraboea species, have been documented. 



Provincial government

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The province is divided into 14 districts (amphoe). The districts are further divided into 89 subdistricts (tambons) and 839 villages (mubans).


  1. Mueang Loei
  2. Na Duang
  3. Chiang Khan
  4. Pak Chom
  5. Dan Sai
  6. Na Haeo
  7. Phu Ruea
  1. Tha Li
  2. Wang Saphung
  3. Phu Kradueng
  4. Phu Luang
  5. Pha Khao
  6. Erawan
  7. Nong Hin




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