Neottia ovata, the common twayblade or eggleaf twayblade, is a terrestrial orchid widespread across much of Europe and Asia. Neottia ovata ( common twayblade or eggleaf twayblade) is a terrestrial orchid widespread across much of Europe and Asia The flowering stems are typically 20–60 cm (7.9–23.6 in) tall, occasionally up to 75 cm (30 in). There are two large opposite basal leaves, 5–20 cm (2.0–7.9 in) long.