Habit.– Herb.
Region.– SW: Kanchanaburi.
Distribution.– Endemic.
Habitat.– Evergreen forest, 1,200-1,600 m alt.
Carex commixta Steud.
หญาใบทียม
Habit.– Herb.
Region.– N: Mae Hong Son, Tak; NE: Loei; SW:
Kanchanaburi.
Distribution.– Sumatra, Java.
Habitat.– Shady places in dry evergreen forest, 900-1,550 m alt.
Carex composita Boott
กกคอมโป
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– India, Nepal.
Habitat.– Mountain top, ca 2,300 m alt.
Carex condensata Nees
หญาคมบางขาว
Habit.– Herb.
Region.– N: Chiang Mai; NE: Loei.
Distribution.– India.
Habitat.– Grassy forest floors, 800-2,500 m alt.
Carex continua C.B. Clarke
หญาคมบางหัว
Habit.– Herb.
Region.– N: Mai Hong Son, Chiang Mai, Lamphun, Uttaradit, Tak, Phitsanulok; NE: Loei; SW:
Kanchanaburi; SE: Chanthaburi.
Distribution.– India, S China, Malesia.
Habitat.– Moist forest floors, 100-1,300 m alt.
Carex craspedotricha Nelmes
กกหมื่น
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– China.
Habitat.– Moist open ground, 1,300-1,600 m alt.
Carex cruciata Vahl
หญาคมบางขาว
Habit.– Herb.
Region.– N: Mae Hong Son, Chiang Mai, Chiang Rai, Nan, Phitsanulok; NE: Loei; E: Chaiyaphum, Nakhon Ratchasima; SE: Chanthabur, Trat; P: Trang.
Distribution.– India to SW Japan, W Malesia.
Habitat.– Grassy forest floors, 800-2,500 m alt.
Carex cryptostachys Brongn.
เตยหนู
Habit.– Herb.
Region.– NE: Loei, Chaiyaphum; SE: Trat, Chanthaburi; C:
Saraburi; P: Nakhon Si Thammarat, Phatthalung, Trang, Satun, Songkhla, Narathiwat.
Distribution.– SE China, Taiwan, Indochina, Malesia, Australia.
Habitat.– Wet grassy forest floors, 50-1,200 m alt.
Carex dimorpholepis Steud.
กกทวี
Habit.– Herb.
Region.– N: Chiang Mai; NE: Loei.
Distribution.– N India, Myanmar, Vietnam, China, Japan.
Habitat.– Wet or swampy grasslands, muddy streamsides, 700-1,500 m alt.
Carex doisutepensis T. Koyama
หญาสุเทพ
Habit.– Herb.
Region.– N: Chiang Mai; NE: Loei.
Distribution.– China.
Habitat.– Dry evergreen and montane forests, 100-1,400 m alt.
Carex fedia Nees
กกธารา
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– Afghanistan, N India, Nepal, N Vietnam, China.
Habitat.– Muddy river banks, margins of lakes, ponds, 400 m alt.
Carex filicina Nees
หญาคมบางภู
Habit.– Herb.
Region.– N: Chiang Mai, Chiang Rai, Phitsanulok; NE: Loei.
Distribution.– India , Sri Lanka, China, Taiwan, Malesia.
Habitat.– Damp areas in montane forest, 500-2,500 m alt.
Carex helferi Boeck.
หญาคมบางใต
Habit.– Herb.
Region.– P: Chumphon, Ranong, Surat Thani, Phangnga, Phuket.
Distribution.– Myanmar.
Habitat.– Along rivers in evergreen forest, to 400 m alt.
Carex horsfieldii Boott
หญาคมบางหัว
Habit.– Herb.
Region.– N: Chiang Mai; SW: Kanchanaburi; SE:
Chanthaburi.
Distribution.– Vietnam, Laos, Java, Maluku, New Guinea, Australia.
Habitat.– Deciduous and evergreen forests, 350-1,000 m alt.
Carex hypolytroides Ridl.
หญาเหงายาว
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– Vietnam, Sumatra, Borneo.
Habitat.– Montane forest, 2,000 m alt.
Carex indica L. var. indica
หญาคมบางเล็ก
Habit.– Herb.
Region.– All over the country.
Distribution.– India, S China, Malesia, Australia, New Caledonia, Fiji.
Habitat.– Evergreen forests, scrub, grassy swamps, river margins, to 1,000 m alt.
Carex indica L. var. laetebrunnea C.B. Clarke
หญาคมบางเล็ก
Habit.– Herb.
Region.– SE: Chanthaburi, Trat; P: Surat Thani; Songkhla.
Distribution.– Sri Lanka, Malesia, New Caledonia, Fiji, Australia.
Habitat.– Evergreen forests, scrub, grassy swamps, river margins, to 1,000 m alt.
Carex indica L. var. microcarpa T. Koyama
หญาคมบางเล็ก
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– Endemic.
Habitat.– Montane forest, 1,100 m alt.
Carex juvenilis C.B. Clarke ex Camus
กกจู
Habit.– Herb.
Region.– N: Phitsanulok; NE: Phetchabun.
Distribution.– Endemic.
Habitat.– Open areas in mixed and dry evergreen forests, 200-600 m alt.
Carex lageniformis Nelmes
กกดก
Habit.– Herb.
Region.– NE: Sakon Nakhon; E: Chaiyaphum; SE:
Chanthaburi.
Distribution.– Endemic.
Habitat.– Evergreen forest, along river margins, 600-1,400 m alt.
Carex maculata Boott
กกมะกู
Habit.– Herb.
Region.– NE: Loei.
Distribution.– India, Sri Lanka, China, Taiwan, Japan, W Malesia.
Habitat.– By stream in pine forest, ca 1,250 m alt.
Carex meeboldiana Kük.
กกจูดดอกยาว
Habit.– Herb.
Region.– SW: Kanchanaburi; P: Phuket.
Distribution.– Myanmar.
Habitat.– Evergreen or mixed forests, 150-700 m alt.
Carex nemostachys Steud.
กกดอกเข็ม
Habit.– Herb.
Region.– E: Nakhon Ratchasima, Chaiyaphum; SE: Prachin Buri.
Distribution.– India, Myanmar, Vietnam, China, Japan.
Habitat.– Stream banks, wet places in dry evergreen forests, also in swampy areas, 300-800 m alt.
Carex oedorrhampha Nelmes
กกอีโด
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– India, Vietnam, S China, Malesia.
Habitat.– Open boggy or swampy places, 2,400-2,550 m alt.
Carex perakensis C.B. Clarke
กกเหลี่ยม
Habit.– Herb.
Region.– N: Chiang Mai, Phitsanulok; NE: Loei.
Distribution.– Vietnam, S China, Taiwan, Peninsular Malaysia, Sumatra, Borneo, Sulawesi.
Habitat.– Montane forests, old clearings, 600-2,500 m alt.
Carex phacota Spreng.
ดอกยอดผู
Habit.– Herb.
Region.– N: Chiang Mai; NE: Loei.
Distribution.– India, Nepal, Myanmar, Indochina, Japan, Malesia.
Habitat.– Bogs, swampy, open grasslands, up to ca 1,200 m alt.
Carex phyllocaula Nelmes
กกเชียงดาว
Habit.– Herb.
Region.– N: Chiang Mai.
Distribution.– Endemic.
Habitat.– In thickets , open grassy ground, 1,500-2,100 m alt.
Carex pleurocaula Nelmes
กกลําขาง
Habit.– Herb.
Region.– NE: Loei.
Distribution.– Vietnam, Cambodia.
Habitat.– Evergreen forest, 1,200-1,300 m alt.
Carex pruinosa Boott
ดอกยอดผู
Habit.– Herb.
Region.– NE: Loei.
Distribution.– India, Java.
Habitat.– Wet grasslands, bog, ca 1,200 m alt.
Carex pterocaulos Nelmes
กกลําปก
Habit.– Herb.
Region.– N: Mae Hong Son; Chiang Mai.
Distribution.– Myanmar.
Habitat.– On mountain ridges, 1,600 m alt.
Carex setigera D. Don
กกสะติก
Habit.– Herb.
Region.– N: Chiang Rai.
Distribution.– Himalayas.
Habitat.– Open grassy clearing, ca 2,000 m alt.
Carex speciosa Kunth subsp. speciosa
กกกระบอก
Habit.– Herb.
Region.– Most regions except lower peninsular.
Distribution.– India, Myanmar, S China, Indochina, Sumatra, Java.
Habitat.– Scrub, open grassy hillsides, 200-1,800 m alt.
Carex speciosa Kunth subsp. latifolia T. Koyama
กกกระบอก
Habit.– Herb.
Region.– N: Chiang Mai; E: Chaiyaphum.
Distribution.– Endemic.
Habitat.– Scrub, open grassy hillsides, 1,100-1,200 m alt.
Carex speciosa Kunth subsp. platyrrhina (Ohwi) T. Koyama
กกกระบอก
Habit.– Herb.
Region.– N: Chiang Mai; E: Nakhon Ratchasima.
Distribution.– Endemic.
Habitat.– Scrub, open grassy hillsides, 800-2,500 m alt.
Carex stramentitia Boott ex Boeck
หญาคมบาง
Habit.– Herb.
Region.– N: Chiang Mai, Lampang; E: Nakhon Ratchasima;
SE: Chanthaburi, Prachin Buri.
Distribution.– N India, S China, S Myanmar, Java.
Habitat.– Dry evergreen or mixed forests, 400-1,800 m alt.
Carex subinclinata T. Koyama
กกบางชอ
Habit.– Herb.
Region.– NE: Phetchabun, Loei.
Distribution.– Endemic.
Habitat.– Montane and bamboo forest, 1,100-1,300 m alt.
Carex teinogyna Boott
กกหิน
Habit.– Herb.
Region.– N: Nan.
Distribution.– India, Myanmar, S China, Indochina, Japan, Korea, Sumatra.
Habitat.– Rock crevices on boulders in stream, 600 m alt.
Carex thailandica T. Koyama
หญากระทิง
Habit.– Herb.
Region.– NE: Phetchabun; E: Nakhon Ratchasima; C:
Saraburi; SW: Phetchaburi.
Distribution.– Endemic.
Habitat.– Dry evergreen forest, 100-500 m alt.
Carex thomsonii Boott
กกทอมสัน
Habit.– Herb.
Region.– N: Phitsanulok.
Distribution.– India, N Myanmar, Vietnam.
Habitat.– Along streams, rivers in forests, 400-1,200 m alt.
Carex tricephala Boeck.
หญาดอกดิน
Habit.– Herb.
Region.– N: Chiang Mai, Chiang Rai, Lampang,
Phitsanulok; NE: Loei, Nakhon Phanom, Khon Kaen; E:
Nakhon Ratchasima; SW: Ratchaburi, Kanchanaburi; SE:
Prachin Buri, Chon Buri; Chanthaburi.
Distribution.– Myanmar, Indochina, Java.
Habitat.– Scrub, old clearings, deciduous forests, 100-600 m alt.
Courtoisina cyperoides (Roxb.) Sojak
กกหัวหยิก
Habit.– Herb.
Region.– N: Mae Hong Son, Chiang Mai, Phayao, Phrae;
NE: Sakon Nakhon, Khon Kaen.
Distribution.– India, Myanmar, Vietnam.
Habitat.– Wet places, rice fields, 100-1,000 m alt.
Cyperus babakan Steud.
กกเหลี่ยม
Habit.– Herb.
Region.– SE: Trat; P: Surat Thani, Nakhon Si Thammarat, Pattani, Songkhla, Narathiwat.
Distribution.– India, Indochina, Malesia, New Guinea.
Habitat.– Open swamps, wet forest floors, rice fields, to 400 m alt.
Cyperus castaneus Willd.
กกโปรง
Habit.– Herb.
Region.– N: Chiang Mai; Phitsanulok, Nakhon Sawan; NE:
Khon Kaen; C: Saraburi, Nakhon Nayok.
Distribution.– India, Indochina, Peninsular Malaysia, Java, Borneo, N. Australia.
Habitat.– Open grasslands, rocky places, to 300 m alt.
Cyperus cephalotes Vahl
กกลอยแพ
Habit.– Herb.
Region.– N: Chiang Mai; NE: Udon Thani; E: Nakhon Ratchasima; C: Bangkok; P: Surat Thani.
Distribution.– India, Sri Lanka, S China, N Australia.
Habitat.– Lakes & rivers, on floating mats of Salvinia and Pistia, decayed marsh plants.
Cyperus compactus Retz.
หญาใบคม
Habit.– Herb.
Region.– Through out the country
Distribution.– Mascarenes, India, Sri Lanka, Indochina, S China, Taiwan, Malesia.
Habitat.– Swamps, rice fields, ditches, river banks, wet forest margins, coastal marshes, to 900 m alt.
Cyperus compressus L.
กกดอกแบน
Habit.– Herb.
Region.– All over the country.
Distribution.– Tropical, subtropical, many temperate regions.
Habitat.– Open grass lands, waste places, waysides, cultivated ground, to 850 m alt.
Cyperus corymbosus Rottb.
กกสานเสื่อ
Habit.– Herb.
Region.– All over the country.
Distribution.– South America, tropical Africa, Madagascar, India, Sri Lanka, Indochina, N Australia.
Habitat.– Marshy places at low altitude.
Cyperus cuspidatus Kunth
กกรังกาปา
Habit.– Herb.
Region.– All over the country.
Distribution.– Pantropical, Asia to Taiwan, SE China.
Habitat.– Open glasslands, cultivated ground, rice fields, up to 1,000 m alt.
Cyperus cyperinus (Retz.) J.V. Suringar
หญาเหลี่ยม
Habit.– Herb.
Region.– All over the country.
Distribution.– India, Sri Lanka, Indochina, S China, the Ryukyu Is., Malesia, Melanesia, Australia, Polynesia.
Habitat.– Wet to semi-dry areas, grasslands, waysides, secondary forest floors, forest clearings, rice fields, to 1,200 m alt.
Cyperus cyperoides (L.) Kuntze
หญารังกา
Habit.– Herb.
Region.– All over the country.
Distribution.– Tropical & subtropical regions of Africa, Asia, West Indies.
Habitat.– Forest margins, clearings, rice fields, waysides, cultivated ground, to 1,900 m alt.
Cyperus difformis L.
กกขนาก
Habit.– Herb.
Region.– All over the country.
Distribution.– Widely distributed in tropical, subtropical, warm temperate regions.
Habitat.– Primarily a weed in rice fields, wet or swampy places, open grassy fields, to 300 m alt.
Cyperus digitatus Roxb.
กกรังกา
Habit.– Herb.
Region.– All over the country.
Distribution.– Pantropical, China, Taiwan.
Habitat.– Swamps, bogs, river banks, rice fields, to 800 m alt.
Cyperus distans L.f.
กกดอกหญา
Habit.– Herb.
Region.– N: Mae Hong Son, Chiang Mai, Chiang Rai, Phrae, Tak, Phitsanulok, Kamphaeng Phet; NE: Khon Kaen;
SW: Kanchanaburi, Ratchaburi, Prachuap Khiri Khan; C:
Saraburi, Nakhon Nayok, Bangkok; SE: Prachin Buri, Chon Buri, Chanthaburi, Trat; P: Surat Thani, Krabi, Nakhon Si Thammarat, Pattani, Narathiwat.
Distribution.– Pantropical.
Habitat.– Open, wet ground, forest clearings, waysides, rice fields, swamps, to 1,800 m alt.
Cyperus dubius Rottb.
แหวหมูหิน
Habit.– Herb.
Region.– All over the country.
Distribution.– Tropical Africa, India, Indochina, Malesia.
Habitat.– Sandy seashores, rock crevices, shallow soil over rocks inl, to 600 m alt.
Cyperus elatus L.
กกกระจาย
Habit.– Herb.
Region.– Bangkok; P: Chumphon, Trang, Narathiwat.
Distribution.– India, SE Asia, W Malesia.
Habitat.– Swamps, river-banks, rice fields, to 1,000 m alt.
Cyperus exaltatus Retz.
กก
Habit.– Herb.
Region.– SW: Phetchaburi; C: Saraburi; P: Ranong.
Distribution.– Pantropical, tropical Africa, South America, China, Japan.
Habitat.– Wet or swampy places at low altitude.
Cyperus haspan L.
กกนา
Habit.– Herb.
Region.– All over the country.
Distribution.– Tropical & subtropical regions worldwide.
Habitat.– Open wet places, rice fields, to 2,000 m alt.
Cyperus helferi Boeck.
กกกระโดง
Habit.– Herb.
Region.– P: Ranong, Surat Thani.
Distribution.– Myanmar, Andaman Is.
Habitat.– Forest floors , river banks, under 100 m alt.
Cyperus imbricatus Retz.
กก
Habit.– Herb.
Region.– N: Mae Hong Son, Chiang Mai, Tak, Nakhon Sawan; NE: Nakhon Phanom, Khon Kaen; E: Buri Ram;
SW: Kanchanaburi; C: Chai Nat, Ang Thong, Bangkok.
Distribution.– Pantropical.
Habitat.– Swampy places, rice fields, at low altitude.
Cyperus involucratus Rottb.
กกรังกา
Habit.– Herb.
Region.– Widely cultivated as an ornamental.
Distribution.– Native to tropical Africa and the Middle East.
Habitat.– Grassy places, waysides, waste places, rice fields.
Cyperus iria L.
หญารังกาขาว
Habit.– Herb.
Region.– All over the country.
Distribution.– E Africa, Tropical Asia, China, Japan, Malesia, Australia.
Habitat.– Rice fields, cultivated ground, waysides, wet places, 100-1,300 m alt.
Cyperus javanicus Houtt.
กกกะแปด
Habit.– Herb.
Region.– C: Bangkok; SE: Chon Buri, Rayong, Chanthaburi, Trat; P: Surat Thani, Satun, Pattani, Narathiwat.
Distribution.– Tropical Africa, Madagascar, India, Sri Lanka, SE China, the Ryukyu Is, Malesia, Pacific Is, W Australia.
Habitat.– Swampy, saline or brackish habitats, to 300 m alt.
Cyperus laxus Lam. var. laxus
หญาตีนกา
Habit.– Herb.
Region.– Common All over the country.
Distribution.– India, Myanmar, Indochina, SE China, Taiwan, Malesia, Solomon Is.
Habitat.– Scrub, wet forest floors, around bamboo groves, 50-500 m alt.
Cyperus laxus Lam. var. macrostachyus (Boeck.) Karth.
หญาตีนกา
Habit.– Herb.
Region.– NE: Loei, Nong Khai; SE: Chanthaburi, Rayong;
P: Phuket.
Distribution.– India, Myanmar, Indochina, SE China, Taiwan, Malesia, Solomon Is.
Habitat.– Scrub, wet forest floors, around bamboo groves, 50-500 m alt.