Cryptostylis erecta, commonly known as the Bonnet Orchid or Tartan Tongue Orchid , is an orchid native to south eastern Australia. A small and common plant, up to 40 cm (15.5 in) tall, Cryptostylis erecta has prominent dark green spear-shaped (lanceolate) to ovate leaves that are 6–13 cm (2.5–5 in) in length and 1.3–3 cm (0.51–1.18 in) across, the undersides of which are purple. The inflorescences (flower spikes) appear from spring to autumn (September to April) and bear two to twelve individual flowers. Each flower has a prominent hood- or bonnet-shaped labellum with maroon stripes and markings on lilac. Its dimensions can reach 2–3.5 cm (0.79–1.38 in) high and 1–1.5 cm (0.39–0.59 in) wide. Arising around the labellum are the green 1.8 to 2.5 cm (0.71 to 0.98 in) long sepals. The natural