Launaea acaulis (Roxb.) Babc. ex Kerr SN21921: 1 image.
Wild herb from Doddabetta area of Nilgiri hills
Can also be Launaea intybacea as per details herein and as per POWO and as per species found in Tamil Nadu as per details at Launaea?
Do you have the images of the phyllaries?
Do you have keys between the two?
Also check L.aculis as per POWO specimens- one and two.