Editing Modelling biological systems (section)

===Tree model===
{{Main|Simulated growth of plants}}
Electronic trees (e-trees) usually use [[L-system]]s to simulate growth. L-systems are very important in the field of [[complexity science]] and [[A-life]].
A universally accepted system for describing changes in plant morphology at the cellular or modular level has yet to be devised.<ref>{{cite web |url=http://www.acm.org/crossroads/xrds8-2/plantsim.html |title=Simulating plant growth |access-date=2009-10-18 |url-status=dead |archive-url=https://web.archive.org/web/20091209022645/http://www.acm.org/crossroads/xrds8-2/plantsim.html |archive-date=2009-12-09 }}</ref>
The most widely implemented tree generating algorithms are described in the papers [http://portal.acm.org/citation.cfm?id=218427 "Creation and Rendering of Realistic Trees"] and [https://doi.org/10.1007%2F978-3-540-25944-2_22 Real-Time Tree Rendering].