Nakhon Nayok Flora

 Nakhon Nayok

Nakhon Nayok (Thai: นครนายก, pronounced [ná(ʔ).kʰɔ̄ːn nāː.jók]) is one of the central provinces (changwat) of Thailand, established by the Act Establishing Changwat Samut Prakan, Changwat Nonthaburi, Changwat Samut Sakhon, and Changwat Nakhon Nayok, Buddhist Era 2489 (1946), which came into force on 9 May 1946.

Neighboring provinces are (from north clockwise) Saraburi, Nakhon Ratchasima, Prachinburi, Chachoengsao, and Pathum Thani. Nakhon Nayok is known for waterfalls and fruit varieties.^{[citation needed]}

Nakon Nayok is a nearby province to Bangkok and has various tourist attractions. Khao Yai National Park, Thailands oldest national park is in partly in Nakhon Nayok province and attracts many tourists. Khun Dan Prakarn Chon Dam is another tourist attraction 2 hours outside of Bangkok in Nakhon Nayok.

The northern part of the province is in the Sankamphaeng Range, the southern prolongation of the Dong Phaya Yen Mountains, with the highest elevation the 1,292-meter-high Yod Khao Kiew. Most of that area is covered by the Khao Yai National Park, 2,166 km² (836 sq mi) along with three other national parks, make up region 1 (Prachinburi) of Thailand's protected areas. The central part of Nakhon Nayok province consists of a flat river plain shaped by the Nakhon Nayok River, while the southern part features relatively infertile acidic soil. The province has a total forest area of 642 km² (248 sq mi), accounting for 30 percent of its total area.

Nang Rong Waterfall is a natural attraction in Nakhon Nayok

The main river of the province is the Nakhon Nayok River. It joins the Prachinburi River at Pak Nam Yothaka in Ban Sang district, Prachinburi province, which then becomes the Bang Pa Kong River.

National park

• Khaow Yai National Park : one of good places to go trekking
• Sarika Waterfall and Wang Takrai Waterfall : the two popular waterfalls in Nakhon Nayok
• Khun Dan Prakan Chon Dam : the biggest concrete dam in Thailand
• Ban Dong Lakhon Archeological Site : it is the site of the old town during the Khmer period.
• Ornamental Plants and Flora Center : you can buy various beautiful ornamental plants and flora there.

Microchirita micromusa :Nangrong waterfall sep25

Gesneriaceae

Gesneriaceae species found in Nakhon Nayok Province include Chayamaritia smitinandii, Middletonia evrardii, and Didymocarpus insulsus. These plants grow in the local moist tropical and evergreen forest zones, such as around Khao Yai National Park and local waterfalls. 

Henkenckelia anachoreta : Namtok Nang Rong,

Notable Gesneriaceae in Nakhon Nayok

Chayamaritia smitinandii: Found in deep shade within evergreen and submontane forests (150–1200 m elevation) in Khao Yai National Park.
Middletonia evrardii: Recorded in central Nakhon Nayok evergreen forests, including collections near [Nang Rong Waterfall](0.6.1, 0.6.9).
Didymocarpus insulsus: กำปองดินLocalized populations occur in the shaded rocky areas of Khao Yai National Park within the province.
Henckelia anachoreta:ผักกาดหิน Namtok Nang Rong,. On rocks beside fast-flowing river, popular picnic area at edge of Khao Yai Nat. Park near Nakhon Nayok.
Microchirita orathaiae: หยาดอรทัย Documented specimen collections originate from local habitats like Sarika Fallsat around 300 m elevation

• Microchirita micromusa (B.L.Burtt) A.Weber & D.J.Middleton นครนายก น้ำตกนางรองคำหยาด

• Paraboea multiflora var. multiflora Nang Rawng Waterfall, 100 m,
Paraboea middletonii เศวตรแดนสรวง 600m.
Paraboea multiflora var. multiflora ชาฤๅษีวังกระ

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The province is divided into four districts (amphoes). The districts are further divided into 41 subdistricts (tambons) and 403 villages (mubans).

1. Mueang Nakhon Nayok
   
   
2. Pak Phli
3. Ban Na
4. Ongkharak

Local government

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As of 26 November 2019 there are:^[13] one Nakhon Nayok Provincial Administration Organisation (ongkan borihan suan changwat) and 6 municipal (thesaban) areas in the province. Nakhon Nayok has town (thesaban mueang) status. Further 5 subdistrict municipalities (thesaban tambon). The non-municipal areas are administered by 39 Subdistrict Administrative Organisations - SAO (ongkan borihan suan tambon).