Acrostichum speciosum Willd.


Pteridaceae, subfamily Parkerioideae


Acrostichum speciosum Willd., Sp. Pl. 5: 117. 1810; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 164, f. 19,1–2. 1940; Holttum, Rev. Fl. Malaya ed. 1, 2: 410, f. 240. 1955 [‘1954’]; Tagawa & K.Iwats., Acta Phytotax. Geobot. 24: 61 1969; Tagawa & K.Iwats., Fl. Thailand 3: 258. 1985; Boonkerd & Pollawatn, Pterid. Thailand: 126. 2000. – Chrysodium aureum var. schmidtii Christ, Bot. Tidsskr 24: 104. 1901. – Acrostichum aureum var. schmidtii (Christ) C.Chr., Bot. Tidsskr. 32: 349. 1916.


Terrestrial, including in flooded areas. Similar to Acrostichum aureum L., differing only in: rhizome scales larger; plants smaller, up to 1.5 m tall; sterile pinnae acuminate at apex, cuneate at base .

Distribution in Thailand

SOUTH-EASTERN: Trat; PENINSULAR: Ranong, Phangnga.

Wider Distribution

Tropical Asia to Australia.


In mangrove swamps, collected rarely but probably more common.

IUCN Conservation Assessment

Least Concern (LC) as listed on the IUCN Red List at

Site hosted by the Royal Botanic Garden Edinburgh. Content managed by Stuart Lindsay, Gardens by the Bay, Singapore and David Middleton, Singapore Botanic Gardens. Last updated 17 January 2018.