Rosette (botany) Rosette (botany) In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil, their structure is an example of a modified stem in which the internode gaps between the leaves do not expand, so that all the leaves remain clustered tightly together and at a similar height. In bryophytes and algae, a rosette results from the repeated branching of the thallus as the plant grows, resulting in a circular outline. Many plant families have varieties with rosette morphology; they are particularly common in Asteraceae (such as dandelions),
Letters on the Elements of Botany directed at readers with a plant in their hand. Letters on the Elements of Botany Letters on the Elements of Botany () is a work comprising a series of letters written by Jean-Jacques Rousseau on the subject of botany. They were addressed to Mme Delessert in Lyon with the objective of helping her daughters learn botany. They were subsequently translated into English by Thomas Martyn, a professor of botany at Cambridge University, who added notes and corrections to the text. Martyn's translation was originally published in 1785. The letters elucidate the structure of plants and give their order in the