Yes Balkar ji
Wedelia chinensis also known as Peela Bhringraj. The leaves when crushed and rubbed on hand will yield black colour dye.
regards
--
Dr. Amit Chauhan
Junior Technical Assistant
Central Institute of Medicinal and Aromatic Plants, Research Centre, Pantnagar, PO Dairy Farm Nagla, Pantnagar, Udham Singh Nagar, Uttarakhand 263149
ph.05944 234445
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