Question

The Para-rubber tree is
A. Parthenium hysterophorus
B. Hevea brasiliensis
C. Taraxacum rexha
D. Ficus elastica

Answer 1

Hint: The Para- rubber tree is also known as rubber tree, seringueira, or sharing tree. This tree belongs to the Euphorbiaceae family, in which flowering plants are categorized. It is economically important as the milky latex could be extracted from the tree, which is used as a primary source for natural rubber.

Complete answer:
> Option A:
Parthenium hysterophorus is also known as Santa Maria feverfew, feminine weed, and white top weed. It belongs to the Asteraceae family. This plant is a native to America. In India it is known as Gajar ghas or carrot grass. Thus, option [A] is incorrect.

>Option C:
Taraxacum rexha are also known as dandelion. The dandelion flower has yellow colored flower heads, which turn in round balls, forming a silver tufted fruit. This could easily disperse by the wind. Thus, option [C] is incorrect.

> Option D:
Ficus elastica is also known as Indian rubber tree, Indian rubber bush, rubber plant, rubber fig, or rubber tree. They are native to Southeast Asia, and eastern south Asia. Thus, option [D] is incorrect.

> Option B:
Hevea brasiliensis are tall and deciduous trees which grow up to a height of 43 meters in the wild. The trunk has a bottled shape basal body, and is cylindrical. The leaflets are spirally arranged, and are three in number. They are also known as Para rubber trees. Hence, the correct answer is option (B).

Note: The species of Para rubber plant is generally found in lower altitudes, having wetlands, moist forests, forest gaps and the disturbed areas. This tree grows quickly; they are firstly produced after a gap of canopy is established.