What is the meaning of the word "indica" in a plant species name?

Question

What is the meaning of the word "indica" in a plant species name?

Answer 1

The specific epithets indica and indicum are used in binomial nomenclature to indicate species (or subspecies) of plants, animals etc thought to originate in, or associated with, India.

Examples of such species are Mangifera indica (mango), Juniperus indica (black juniper), Azadirachta indica (neem), and Lagerstroemia indica (crape myrtle).

Indica is a long-grain variety of rice (Oryza sativa subsp. indica), as opposed to the short-grain Japonica (O. sativa subsp. japonica).

Another example of a botanic subspecies is Cannabis sativa subsp. indica (a type of marijuana, considered to be a separate species, Cannabis indica, by some authorities

Answer 2

Originating in or around the Indian sub-continent