The reference work you need is "Culpeper's Complete Herbal" - you can get it on amazon or from your local library.
Sativa
Common names might not be as common as you think. Organisms can be known by several different common names, depending on when and where you are. Inversely, several different plants may be referred to with the same common name, depending on their similarities. Scientific names never change, and no two differing organisms have the same scientific name. This allows for a better understanding and grouping of organisms within the scientific community.
On google just look up scientific names for plants and animals it works just try it.
Scientific names are very specific. The common names of many animals are just that, common. One common name may be the widely accepted name for multiple animals or plants. Common names for plants and animals also vary with region.
mango
Scientific names are exact. They tell us the genus and species that the animal or plant belongs to and only one scientific name is given to each species. Common names, on the other hand, are abundant with many species having two or more common names. Let's look at the cougar as an example. Its scientific name is Puma concolor. It's common names include cougar, Florida panther, panther, puma, catamount and mountain lion. A puma is neither a panther nor a lion. It is in a genus that it shares with the jaguarundi so you can see where confusion would come in.
Because the same common names are used to describe different plants... which may be similar to each other or wildly different. The scientific names of plants are specifically designed to identify a particular species clearly and unambiguously.
they are vascular plants and non-vascular plants
lotus -nelumbu
There are different species of chamomile with different scientific names. The most common species (the kind widly used in tea) appears to be Matricaria chamomilla.The various species and their scientific names can be found at the US Department of Agriculture's PLANTS database, searching "chamomile" under Common Name:
Gingko Biloba, Ginger(root), Saw Palmetto, and Red Clover.
the scientific name of the common fig is ficus carica. Hope this helps:)