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plants text index | photo
index
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| mangroves | Acrostichum in general |
| Piai
raya Acrostichum aureum Family Pteridaceae updated Aug 09 Where seen? This humungous fern is often seen in back mangroves, flourishing on mud lobster mounds and other higher ground along the coasts including reclaimed land. According to Giersen, it does not tolerate as much inundation by seawater as A. speciosum, and prefer bright, sunny areas. In cleared mangroves, this fern can dominate and become a nuisance. Features: The fronds are broader and longer (to about 4m long) than those of Piai lasu (A. speciosum) and young fronds are crimson red. Rhizomes and base of the leaf stalks covered with scales up to 4cm long. Tips of fertile leaflets are covered with red-brown sporangia, sterile leaflets have a rounded tip. See the main page on mangrove ferns for their human uses. |
 Sungei Buloh Wetland Reserve, Mar 09 |
 Pasir Ris, Sep 09 |
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 Young fronds are red. Kranji Canal, Mar 09 |
 Red young fronds, brown fertile fronds.  Sungei Buloh Wetland Reserve, Mar 09 |
 Fertile fronds with spores.  Pasir Ris, Apr 09 |
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Links
References
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Cambridge University Press. USA. 419 pp.|
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