Dear Satish ji, As per the key provided in this link ( http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063) and the description and illustrations therein shows that the stem leaf margin of *L. octovalvis *is hairy and the same for *L. perennis* is glabrous. In this pictures, though it is not very clear, seems that the plant is glabrous. Mohima ji please check whether the plant is hairy or not.
Regards, Giby On 17 October 2011 18:15, Satish Phadke <[email protected]> wrote: > It is interesting > Whether it is *Ludwigia octovalvis* or *Ludwigia perennis*? Only > significant difference between the two what I noticed from the literature is > that the small petiole is winged in *L.perennis*. > Mohina ji Can you check this in your plant as it is not appreciated in the > given picture. > Otherwise the plant looks close to *Ludwigia octovalvis* to me > > http://groups.google.com/group/indiantreepix/browse_thread/thread/2ea31303c443af06/a3f3b57a741cdbc4?hl=en&lnk=gst&q=ludwigia#a3f3b57a741cdbc4 > > > On Sun, Oct 16, 2011 at 6:37 PM, Mohina Macker <[email protected]>wrote: > >> very small flowers >> no bigger than 3 or 4 mm >> would very much appreciate an id >> regards >> mohina macker >> > > > > -- > Dr Satish Phadke > -- GIBY KURIAKOSE PhD Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Jakkur Post, Srirampura Bangalore- 560064 India Phone - +91 9448714856 (Mobile) visit my pictures @ http://www.flickr.com/photos/giby
