New to me have seen only Xanthium strumarium. Thanks for sharing On Sat, Aug 13, 2011 at 12:42 PM, Gurcharan Singh <[email protected]>wrote:
> *Xanthium spinosum* L., Sp. pl. 2:987. 1753 > syn: *Xanthium ambrosioides* Hooker & Arnott > > > Common names: Bathurst-bur, prickly burweed, spiny cocklebur > > A South American plant having become invasive in many parts of Old World. > Perhaps a recent introduction in Kashmir, where it has become common along > roadsides and waste places. > > Annual plant, up to 1 m tall, often much branched; nodes with spines in > pairs, simple or 2-3 partite, 1.5-4 cm long; leaves ovate or > ovate-lanceolate, 4-8 cm long, up to 5 cm broad, often 3-7-lobed, shining > green on upper surface, gray or white beneath; heads globose, in racemes, > lower usually pistillate, upper functionally male; burs enclosing cypselae, > prickly, 10-15 mm long. > > Photographed from Balgarden (July) and Harwan (August) in Kashmir. I had > photographed it last year also but then it was in vegetative state. Was able > to get flowers and fruits this year. > > -- > Dr. Gurcharan Singh > Retired Associate Professor > SGTB Khalsa College, University of Delhi, Delhi-110007 > Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. > Phone: 011-25518297 Mob: 9810359089 > http://people.du.ac.in/~singhg45/ > > -- Regards Dr Balkar Singh Head, Deptt. of Botany and Biotechnology Arya P G College, Panipat Haryana-132103 09416262964
