Sir, This 5 petal flower is an exception, there was only this flower when i recorded the attached pictures. However, later i noted that all flowers of the same winged species have four petals. And this is very common in moist land, leaves and base of the stem sometimes red tinged.
I have another plant, posted in June '12 ( https://groups.google.com/d/topic/indiantreepix/J3TAWywxx5k/discussion), and i think that species is also the same as this one. Thank you very much for the ID. Regards, surajit On Mon, Sep 24, 2012 at 3:34 PM, Prabhu kumar KM <[email protected]>wrote: > > This species is closely allied to *Ludwigia hyssopifolia* (G. Don) > Exell., having only petals. > But your specimen with 5 lobes. > *Ludwigia hyssopifolia: *Herbs; branchlets angled or winged. Leaves > 2.5-5 x 1-2 cm, elliptic-lanceolate, base cuneate, apex gradually acute to > acuminate, glabrous, membranous; petiole to 1 cm long. Flowers solitary, > axillary. Calyx tube narrow; lobes 4, c. 3 mm long, lanceolate, > persistent. Petals 4, obovate, yellow. Stamens 8; filaments unequal. > Ovary 4-celled; ovules many; stigma 4-lobed. Capsule c. 2 cm long, linear, > terete, 8-ribbed. Seeds dimorphic, uniseriate and embedded in endocarp > below and pluriseriate and free above. > Please compare with this species. > > -- > *Prabhu Kumar K M* > Scientist > Plant Systematics & Genetic Resources Division > Centre for Medicinal Plants Research (CMPR) > & 'CMPR' Herbarium > Kottakkal Arya Vaidya Sala > Kottakkal, Malappuram > *E-mail: [email protected]* > > --
