UPSC Prelims 2025 GS Paper I · Q19 of 99 Environment & Ecology medium

Consider the following pairs : Plant Description I. Cassava : Woody shrub II. Ginger : Herb with pseudostem III. Malabar spinach : Herbaceous climber IV. Mint : Annual shrub V. Papaya : Woody shrub How many of the above pairs are correctly matched?

  1. (a) Only two
  2. (b) Only three ✓ UPSC's answer
  3. (c) Only four
  4. (d) All the five

Why the answer is (b)

• Cassava (tapioca) is a woody perennial shrub grown for its starchy tuberous roots — pair I is correct.

• Ginger is a herbaceous perennial whose 'stem' above ground is a pseudostem formed by tightly rolled leaf sheaths, like banana and turmeric — pair II is correct.

• Malabar spinach (Basella alba, poi) is a soft-stemmed herbaceous climbing vine — pair III is correct.

• Mint is a perennial herb spreading by runners, not an annual shrub, so pair IV is wrong; papaya, despite its size, is a soft-stemmed giant herb rather than a woody shrub, so pair V is wrong.

• Hence three pairs are correctly matched, option (b).

Why the other options are wrong

(a) Only two
Three pairs (I, II, III) are correct, not two.
(c) Only four
Pairs IV (mint) and V (papaya) are both wrong, so the count is three, not four.
(d) All the five
Mint is not an annual shrub and papaya is not a woody shrub.

Asked in the GS Paper I of the UPSC Civil Services Preliminary Examination 2025, held on 25 May 2025. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.

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