The Pose shown is a variation of Prasarita Podottanasana 

Padottanasana, or “Wide Legged Forward Bend”, is a Great pose for Sattva – “purity”, literally “existence, reality” in Sanskrit.  Known for soothing the heart and mind while developing rootedness and balance, the anatomical focus of this pose includes the brain, liver, kidneys, spine, hamstrings, calves, hips, groin area, and knees. 

The benefits of this pose are multi-fold, as it strengthens and stretches the inner and back legs and the spine while toning the abdominal organs.  It also calms the brain and allows for a positive meditative state while holding the pose for 1 minute to 90 seconds.

This position is usually done toward the end of a series of standing poses like Adho Mukha Svanasana ( Downward Facing Dog Pose) or Uttanasana ( Intense Forward Bending Pose), and can be entered directly through Tadasana (Mountain Pose).

There are many good follow-up poses for this Prasarita Padottanasana, including Baddha Konasana (Bound Angle Pose), Bakasana (Crane Pose) , Paschimottanasana (Seated Forward Bend) , Sirsasana (Head Stand)  or Utthita Parsvakonasana or (Extended Side Angle Pose).