A rare orchid species – Liparis mengziensis, earlier known only from China, has been recorded for the first time in India from Arunachal Pradesh.

Key Highlights

• The species was discovered in Lower Dibang Valley district near Mayodia Pass at an altitude of about 2,309 metres.
• It was earlier known only from Yunnan province (China) since 2021.
• This discovery extends its geographical range to the Eastern Himalayas.

About Liparis mengziensis

• It is a terrestrial orchid growing on moss-covered wet rocks.
• It is a small herb (~10 cm tall) with:
  • A single leaf
  • Yellowish-green flowers with purple tinge
• Flowering season: June–July

Identification Features

• Broad ovate leaf with crenate (toothed) margins
• Purple-tinged flowers
• Distinct ovate lip with pointed tip

Orchid Diversity in India

• India has 42 species (and 1 variety) under genus Liparis
• 32 species are found in Northeast India
• 24 species are found in Arunachal Pradesh alone

This confirms Arunachal Pradesh as a major orchid diversity centre.

Exam Hook

Prelims Question:
Which of the following statements is correct regarding orchids in India?
(a) All orchids are epiphytes
(b) Northeast India is a major centre of orchid diversity
(c) Orchids grow only in tropical regions
(d) India has very few orchid species

One-Line Wrap

A rare orchid discovery in Arunachal Pradesh showcases the hidden biodiversity of the Eastern Himalayas and the need for deeper ecological exploration.

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