Zeylanidium olivaceum (Gardner) Engl.

    (River Weed Family)
  • Family (Hindi name) : PODOSTEMON FAMILY
  • Family (as per The APG System III) : PODOSTEMACEAE
  • Species Name (as per The Plant List) : Zeylanidium olivaceum (Gardner) Engl.
  • Habit : Herb
  • Habitat : Streams
  • Comments / notes : Occasional on rocks in hill streams
  • Key identification features : Aquatic herbs attached to rocks in rapid flowing streams and rivers. Thallus is highly varied: crustaceous and/or pinnately branched thallus. Thalloid growth 50-80 cm long. Flowers apetalous, greenish, dimerous. Capsules 8-ribbed, anisolobous.
  • Flower, Fruit : October-March
  • Distribution :
    • Kerala : Palakkad district, Thrissur district, Idukki district, Kottayam district, Pathanamthitta district, Kollam district
    • Tamil Nadu : Shevaroy Hills (Salem district)
  • Native : India
  • World Distribution : India, Sri Lanka
  • Conservation Status : Least Concern (LC)
  • Literature : Matthew, K.M., The Flora of Tamil Nadu Carnatic, Vol.3 (2). Diocesan Press, Madras. 1983; IUCN Red List of Threatened Species. Version 2014.1. ; Sasidharan, N. 2011. Flowering plants of Kerala. DVD, V 2, KFRI.
  • Citation : Sankara Rao, K., Raja K Swamy, Deepak Kumar, Arun Singh R. and K. Gopalakrishna Bhat (2019). Flora of Peninsular India. http://peninsula.ces.iisc.ac.in/plants.php?name=Zeylanidium olivaceum. Downloaded on 11 August 2022.


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