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Seaweeds > Division Rhodophyta > genus Hypnea
Bushy ball red seaweed
Hypnea pannosa*
Family Cystocloniaceae
updated Jan 13
Where seen? Dense balls of this seaweed is sometimes seen on some of our Southern shores, growing on coral rubble.

Features: Dense bushy balls about 6-8cm in diameter made up of very short cylindrical blades that branch thickly with tapering tips. Colours often blue or bluish, sometimes green. Usually in small clumps, but sometimes covering a larger area of about 20cm.

Human uses: Some species are fed to livestock, eaten by people, used as fertiliser and believed to have medicinal properties.

Pulau Hantu, Aug 04

Sentosa, Oct 03

Labrador, Apr 05

*Seaweed species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.

Bushy ball red seaweeds on Singapore shores

Photos of Bushy ball red seaweeds for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map


Pulau Salu, Jun 10

Pulau Salu, Aug 10

Pulau Senang, Aug 10

Links References
  • Lee Ai Chin, Iris U. Baula, Lilibeth N. Miranda and Sin Tsai Min ; editors: Sin Tsai Min and Wang Luan Keng, A photographic guide to the marine algae of Singapore, 2015. Tropical Marine Science Institute, 201 pp.
  • Pham, M. N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of the Algae of Singapore, 2nd Edition. Lee Kong Chian Natural History Museum, National University of Singapore, Singapore. 99 pp. Uploaded 1 October 2011. [PDF, 1.58 MB].
  • Huisman, John M. 2000. Marine Plants of Australia University of Western Australia Press. 300pp.
  • Calumpong, H. P. & Menez, E. G., 1997.Field Guide to the Common Mangroves, Seagrasses and Algae of the Philippines. Bookmark, Inc., the Philippines. 197 pp.
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