শিয়ালকাঁটা - argemone mexicana

© eon's photography / pap

Argemone mexicana (Mexican poppy, Mexican prickly poppy, Flowering thistle, cardo or cardosanto) is a species of poppy found in Mexico and now widely naturalized in many parts of the world. An extremely hardy pioneer plant, it is tolerant of drought and poor soil, often being the only cover on new road cuttings or verges. I found these in Barisal Maha-Shamshan.

https://www.flickr.com/photos/eon_bd/10136060056
http://yourshot.nationalgeographic.com/photos/3207348