1. Child's Pose (Balasana): This pose gently stretches the hips, thighs, and ankles, making it a great choice for beginners.
2. Downward-Facing Dog (Adho Mukha Svanasana): This pose helps to lengthen the spine and stretch the back, hamstrings, and calves.
3. Warrior I (Virabhadrasana I): Warrior I pose opens the chest and shoulders while stretching the hip flexors and thighs.
4. Triangle Pose (Trikonasana): This pose stretches the hamstrings, groins, and hips while opening the chest and shoulders.
5. Cobra Pose (Bhujangasana): Cobra pose improves flexibility in the spine and opens the chest, shoulders, and abdomen.
6. Seated Forward Bend (Paschimottanasana): This pose stretches the spine, shoulders, and hamstrings, promoting flexibility in the entire back body.
7. Bridge Pose (Setu Bandhasana): Bridge pose stretches the chest, neck, spine, and hips, while also strengthening the back muscles.
8. Seated Wide-Legged Forward Bend (Upavistha Konasana): This pose stretches the inner thighs, groins, and hamstrings, promoting flexibility in the lower body.
9. Cat-Cow Pose (Marjaryasana-Bitilasana): This gentle flowing sequence of poses helps to warm up the spine and increase flexibility in the back and neck.
10. Pigeon Pose (Eka Pada Rajakapotasana): Pigeon pose is a deep hip opener that also stretches the thighs, groins, and psoas muscles, promoting overall hip flexibility.

These yoga poses are great for beginners looking to improve flexibility. Remember to listen to your body and practice with awareness to avoid injury. It's always a good idea to learn from a certified yoga instructor to ensure proper alignment and technique.