the Myrtus bloomed and raised its scent

There’s a parable in the Midrash which goes as follows:

Myrtus and Ruscus used to grow next to each other, and they use to resemble to each other till nobody could distinguish which leaf belongs to the Myrtus and which one of the leaves belongs to the Ruscus.

But when the the Myrtus and the Ruscus grew and bloomed, the Myrtus gave its scent and the Ruscus gave its thorns.

Questions For The Road:

* The Myrtus and the Ruscus looked alike, in what stage of their growth can we distinguish them ?

* This Midrash is an allegory of Jacob and Esau. Do you know which plant symbolizes Jacob and which one Esau ?

Please feel free to write an answer in the comments, below!

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Source: Genesis Rabbah, Chapter 63, sign 14

img Myrtus:  Some rights reserved by .Bambo.

img Ruscus: Some rights reserved by Xevi V