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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Lamiaceae
Subfamilia: Nepetoideae
Tribus: Ocimeae
Subtribus: Ociminae
Genus: Platostoma
Species: P. africanum – P. annamense – P. axillaris – P. becquerelii – P. calcaratum – P. cambodgense – P. clausum – P. cochinchinense – P. coeruleum – P. coloratum – P. denticulatum – P. dilungense – P. elongatum – P. fastigiatum – P. fimbriatum – P. gabonense – P. glomerulatum – P. grandiflorum – P. hildebrandtii – P. hispidum – P. intermedium – P. kerrii – P. lanceolatum – P. laxiflorum – P. leptochilon – P. longicorne – P. madagascariense – P. mekongense – P. menthoides – P. montanum – P. ocimoides – P. palniense – P. palustre – P. rotundifolium – P. rubrum – P. siamense – P. stoloniferum – P. strictum – P. taylorii – P. tectum – P. tenellum – P. thymifolium – P. tridechii – P. verbenifolium

Platostoma P.Beauv., Fl. Oware 2: 61 (1818)

Type species: Platostoma africanum P.Beauv., Fl. Oware 2: 61 (1818)


Mesona Blume, Bijdr. Fl. Ned. Ind.: 838 (1826)
Type species: M. palustris Blume ≡ P. palustre
(Blume) A.J.Paton
Acrocephalus Benth., Edwards's Bot. Reg. 15: t. 1282, 13 (1829)
Type species: A. scariosus Benth. = P. hispidum
(L.) A.J.Paton
Geniosporum Wall. ex Benth., Edwards's Bot. Reg. 15: t. 1300 (1830)
Type species: G. prostratum (L.) Benth. = P. menthoides
(L.) A.J.Paton
Nosema Prain, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 73: 20 (1904)
Type species: N. capitatum Prain = P. cochinchinense
(Lour.) A.J.Paton
Limniboza R.E.Fr., Wiss. Erg. Schwed. Rhod.-Kongo Exped. 1: 277 (1916)
Type species: L. coerulea R.E.Fr. ≡ P. coeruleum
(R.E.Fr.) A.J.Paton
Hemsleia Kudô, Mem. Fac. Sci. Taihoku Imp. Univ. 2: 142 (1929)
Type species: H. calcarata (Hemsl.) Kudô ≡ P. calcaratum
(Hemsl.) A.J.Paton
Ceratanthus F.Muell. ex G.Taylor, J. Bot. 74: 3 (1936)
Type species: C. longicornis (F.Muell.) G.Taylor ≡ P. longicorne
(F.Muell.) A.J.Paton
Octomeron Robyns, Bull. Jard. Bot. État Bruxelles 17: 28 (1943)
Type species: O. montanum Robyns ≡ P. montanum
(Robyns) A.J.Paton


Palisot de Beauvois, A.M.F.J. 1818. Flore d'Oware 2: 61. 18 A.
Govaerts, R. et al. 2014. Platostoma in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2014 June 26. Reference page.
International Plant Names Index. 2014. Platostoma. Published online. Accessed: June 26 2014.
Paton, A. 1997: Classification and species of Platostoma and its relationship with Haumaniastrum (Labiatae). Kew bulletin 52(2): 257–292. JSTOR Reference page. 2014. Platostoma. Missouri Botanical Garden. Published on the internet. Accessed: 2014 June 26.

Platostoma is a genus of flowering plants in the mint family, Lamiaceae, first described as a genus in 1818. It is native to tropical parts of Africa, southern Asia, Papuasia, and Australia.[1] Mesona[2][3] and Acrocephalus has been known as its synonyms.

A widely consumed species in this genus is Platostoma palustre (synonyms Mesona chinensis, M. elegans, and M. procumbens),[4] or xiancao (仙草) in Mandarin, sian-chháu (仙草) in Taiwanese, leung fun cho (涼粉草) in Cantonese, sương sáo in Vietnamese, and cincau in, Indonesian and Malay. It is eaten as a snack in drinks, or set as a gel and served as a grass jelly.

In, Indonesia the Platostoma palustre leaf is used to make a black jelly; there is also an instant powder variety available.


There are about 44-46 accepted species as below[1][5]:

Platostoma africanum P.Beauv — tropical Africa, southern India, Lesser Sunda Islands in, Indonesia
Platostoma annamense (G.Taylor) A.J.Paton — Vietnam, Thailand, Cambodia
Platostoma axillaris (Benth.) A.J.Paton — Assam
Platostoma becquerelii Suddee & A.J.Paton — Cambodia
Platostoma borzianum (Chiov.) ined.. — Ethiopia
Platostoma calcaratum (Hemsl.) A.J.Paton — southern China, northern Indochina
Platostoma cambodgense Suddee & A.J.Paton — Vietnam, Thailand, Cambodia, Laos
Platostoma clausum (Merr.) A.J.Paton — Culion Island in Philippines
Platostoma cochinchinense (Lour.) A.J.Paton — southern China, Indochina, Java, Sumatra
Platostoma coeruleum (R.E.Fr.) A.J.Paton — Angola, Zambia
Platostoma coloratum (D.Don) A.J.Paton — Yunnan, eastern Himalayas, northern Indochina
Platostoma denticulatum Robyns — central Africa from Cameroon east to Tanzania and south to Angola
Platostoma dilungense (Lisowski & Mielcarek) A.J.Paton — Zaïre, Tanzania, Zambia, Malawi
Platostoma elongatum (Benth.) A.J.Paton — Sri Lanka, southern India
Platostoma fastigiatum A.J.Paton & Hedge — Madagascar
Platostoma fimbriatum A.J.Paton — Thailand
Platostoma gabonense A.J.Paton — Cameroon, Gabon, Tanzania
Platostoma glomerulatum A.J.Paton & Hedge — Madagascar
Platostoma grandiflorum Suddee & A.J.Paton — eastern Indochina
Platostoma helenae (Buscal. & Muschl.) ined.. — Mozambique
Platostoma hildebrandtii (Vatke) A.J.Paton & Hedge — Kenya, Tanzania
Platostoma hispidum (L.) A.J.Paton — Southeast Asia, southern China, Assam, New Guinea
Platostoma intermedium A.J.Paton — Thailand
Platostoma kerrii Suddee & A.J.Paton — Thailand, Cambodia
Platostoma lanceolatum (Chermsir. ex Murata) A.J.Paton — Thailand
Platostoma laxiflorum A.J.Paton & Hedge — Madagascar
Platostoma leptochilon Robyns — Zaïre
Platostoma longicorne (F.Muell.) A.J.Paton — Queensland, New Guinea
Platostoma madagascariense (Benth.) A.J.Paton & Hedge — Madagascar
Platostoma mekongense Suddee — Thailand
Platostoma menthoides (L.) A.J.Paton — Sri Lanka, southern India
Platostoma montanum (Robyns) A.J.Paton — Zaïre, Tanzania, Rwanda, Burundi
Platostoma ocimoides (G.Taylor) A.J.Paton — Thailand, Cambodia
Platostoma palniense (Mukerjee) A.J.Paton — southern India
Platostoma palustre (Blume) A.J.Paton — Southeast Asia, southern China, Assam, Bangladesh, New Guinea
Platostoma rotundifolium (Briq.) A.J.Paton — tropical and southern Africa
Platostoma rubrum Suddee & A.J.Paton — Thailand, Laos
Platostoma siamense (Murata) A.J.Paton — Thailand
Platostoma stoloniferum (G.Taylor) A.J.Paton — Thailand, Laos
Platostoma strictum (Hiern) A.J.Paton — Zaïre, Angola, Zambia, Malawi
Platostoma taylorii Suddee & A.J.Paton — Thailand, Cambodia
Platostoma tectum A.J.Paton — Thailand, Cambodia, Laos
Platostoma tenellum (Benth.) A.J.Paton & Hedge — Madagascar
Platostoma thymifolium (Benth.) A.J.Paton & Hedge — Madagascar
Platostoma tridechii Suddee — Thailand
Platostoma verbenifolium (Watt ex Mukerjee) A.J.Paton — Assam, Bangladesh, Arunachal Pradesh, Myanmar


Kew World Checklist of Selected Plant Families
Quattrocchi, Umberto (2012). World Dictionary of Medicinal and Poisonous Plants. CRC Press. p. 2489. ISBN 978-1-4200-8044-5. "See Bijdragen tot de flora van Nederlandsch Indië 838. 1826 and Taiwania 43(1):38–58. 1998."
Don, George (1838). General History of the Dichlamydeous Plantus. London. p. 675. "from μέσος, mesos, middle; so called because the genus was supposed by the author to be intermediate between Ocimum and Scutellaria."
Flora of China
Platostoma P.Beauv.. In: The Plant List (2013). Version 1.1. Published on the Internet; [2015-7-18].

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