Wikipedia
Janusirsasana
Janu Sirsasana ( ; ; IAST: jānu śīrṣāsana), Head-to-Knee Pose, Head-to-Knee Forward Bend, Head of the Knee Pose, or Head-on-Knee Pose is an asana. It is part of the Ashtanga Yoga Primary Series and is commonly practiced as a seated asana in many styles of yoga.