Question

Which one yields Sunn Hemp?
A. Corchorus
B. Hibiscus
C. Crotalaria
D. Cannabis

Answer 1

Hint: Sunn hemp is a multipurpose legume which belongs to the legume family. It is grown in India for its high quality fibre. The genus is from the Fabaceae family.

Complete answer:
Sunn hemp is Croalaria juneca L. It is a multipurpose tropical and subtropical legume which grows in many countries, grown in India for its high quality fibre. The crop is used for green manure to improve the soil. Sunn hemp is mainly grown as a fibre crop which is used in traditional manufacture of ropes, strings, floor mat etc. It's foliage can be used as a protein source to supplement poor quality roughage.

Now if we look at the options,
> Option A is Corchorus, It is a genus of many species of flowering plants i.e., around 40-100 species in the Family Malvaceae. This option is not the correct one as per the explanation given above as the species of sunn hemp is not of the Malvaceae family. So, this is incorrect.

> Option B which is Hibiscus. It is also a genus of flowering plants of Malvaceae family which consists of more than hundred species which are native to warm temperate, tropical and subtropical regions throughout the world. This option is also not the correct one as it is a species of flowering plant of the Malvaceae family but Sunn hemp is not from this family.

> Option C which is Crotolaria, it is a species of Sunn hemp which is Crotalaria juncea L. It is a species of flowering plants of the legume family Fabaceae. As explained above, this option seems to be the correct one.

> Option D is Cannabis. It is a genus of flowering plants in the family Cannabaceae. This option is also the incorrect one as sunn hemp species is not from this family.

Hence, the correct answer is option (C).

Note: Crotalaria is a species of flowering plants of the legume family Fabaceae. Sunn hemp is from legume family and it's species is Crotolaria juneca L. and this is a legume which grows in many countries and it is used for the manufacturing of ropes and in India it is mainly grown for the high quality fibre.