UPSC Prelims 2026 GS Paper I · Q36 / 98 Environment & Ecology medium

Consider the following statements about Rhynchostylis retusa (Foxtail orchid) : 1. It is an epiphytic orchid. 2. The species is endemic to North-east India. 3. It is the State flower of Arunachal Pradesh and Assam. Which of the statements given above is/are correct ?

  1. (a) 1 only
  2. (b) 1 and 3 ✓ UPSC's answer
  3. (c) 2 and 3
  4. (d) 3 only

Why the answer is (b)

• Rhynchostylis retusa, the foxtail orchid (Kopou phul in Assamese), grows on tree trunks and branches as an epiphyte, drawing moisture from the air — statement 1 is correct.

• It is the State flower of both Assam and Arunachal Pradesh and is worn by Bihu dancers in spring — statement 3 is correct.

• Statement 2 is wrong: the species is not endemic to North-east India; it ranges widely across South and South-east Asia, from Sri Lanka and the Western Ghats to Indonesia and the Philippines.

• 'Endemic' means found nowhere else, a stricter claim than 'common in' or 'native to'.

• Hence 1 and 3, option (b).

Why the other options are wrong

(a) 1 only
Statement 3 is also correct: it is the State flower of Assam and Arunachal Pradesh.
(c) 2 and 3
Statement 2 is wrong: the orchid is widespread across South and South-east Asia, not endemic to the North-east.
(d) 3 only
Statement 1 is also correct: it is an epiphyte.

Asked in the GS Paper I of the UPSC Civil Services Preliminary Examination 2026, held on 24 May 2026. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.

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