Category of Organisms Seagrasses
Kingdom Plantae
Phylum/Division Magnoliophyta
Class Liliopsida
Order Potamogetonales
Family Cymodoceaceae
Genus Halodule
Species uninervis
Binomial Name
Halodule uninervis
Author (Forsskayl) Ascherson
Common Name Halodule
Local Name  
Size Range
Narrow leaved = (mean width range 0.90-1.21 mm, width range
                          0.5-1.5 mm)
Wide leaved    = (mean width range 2.16-3.21 mm, width range
                          1.5-4.0 mm)
Inhabit sublittoral areas as deep as 30 m but can invade into the intertidal area as far as the Avicennia forest (den Hartog 1970). [1]
Endemic No
Found in Marine Park Yes
Found in Malaysia Yes
In Malaysia, can be found in Kedah (Teluk Ewa, Pulau Langkawi), Perak (Teluk Nipah, Pulau Pangkor), Negeri Sembilan (Cape Rachado, Teluk Kemang, Pantai Port Dickson, Port Dickson), Melaka (Pulau Serimbun, Pulau Besar), Johor (Pulau Sibu, Pulau Sibu Tengah, Pulau Tinggi, Pulau Mentinggi, Pulau Besar), Terengganu (Sg. Redang estuary, Pulau Redang, Kuala Setiu), Sabah (Pulau Mabul, Pulau Sipadan, Pulau Gaya, Pulau Sepanggar, Pulau Manukan). [1]
This is an eurybiontic species. Its growth habit makes it a good substratum stabilizer and sediment accumulator. The leaf size varies with the substratum, being broader (up to 3.5 mm wide) in sheltered muddy areas and narrower (1mm wide) in exposed sandy shores. In Port Dickson, the average standing biomass was as 1.09g dry wt. m-2 in 1994. [1]
Status in IUCN Red List Unknown
Status in CITES Species Database Unknown
1. Phang, S.M. (2000). Seagrasses of Malaysia. Botanical   Monographs No. 2. Kuala Lumpur: University of Malaya
Other Link(s)
Collection Record
Halodule uninervis taken from Seagrasses of Malaysia (Phang S.M, 2000)