Caulis
Caulis seu cōlis est organum biologicum, unus e binis axibus plantae vascularis, quorum alius est radix. Caulis usitate in nodos et internodia dividitur. Inter folia et radices, vasa lymphae in cortice et ligno fluunt.

Cambium vasculare
Phloema
Rhizoma
Xylema

Notae

Bibliographia
Goebel, K. E. v. (1905) 1969. Organography of plants, especially of the Archegoniatae and Spermaphyta. Novi Eboraci: Hofner Publishing Company.
Hogan, C. Michael. 2010. Abiotic factor. Encyclopedia of Earth, ed. Emily Monosson et C. Cleveland. Vasingtoniae: National Council for Science and the Environment.
Raven, Peter H., Ray Franklin Evert, et Helena Curtis. 1981. Biology of plants. Novi Eboraci: Worth Publishers. ISBN 0-87901-132-7.
Speck, T., et I. Burgert. 2011. Plant Stems: Functional Design and Mechanics. Annual Review of Materials Research 41: 169–193. doi:10.1146/annurev-matsci-062910-100425.

Anatomia plantarum
Morphologia plantarum