The present invention relates to a method for obtaining Taraxacum plants of considerable size and substantial rubber content, preferably by providing Taraxacum plants having a relatively large genome size and/or having a specific percentage of Taraxacum koksaghyz (TKS) derived genes and a specific percentage of Taraxacum officinale (TO) derived genes； selecting these plants for the presence or absence of certain markers； and subsequently selecting the plants on plant size, and on genome size.
