I learned yesterday that Gilles Deleuze and Felix Guattari are wrong. At least, one of their most often employed "real world" examples of multiplicity (their concept of the Rhizome, or rhizomatic thought) is misleading.
The two philosophers famously claim that a blade of grass grows always from the middle out, and is therefore an embodiment of pluralistic, non-linear thinking. In fact, a blade of grass does not grow in this way. It grows from the base up!
Where the blade attaches to the plant stem, the intercalary meristem resides. (This meristem is distinct from the apical meristem, which is usually found at the tip of a stem or root.) The intercalary meristem generates new cell growth and, by doing so, extends the blade of grass from the bottom up, not from the middle out. Thus, when you cut grass, new growth occurs.
Damn it, Deleuze and Guattari! How many years have I been using this flawed analogy, thinking it was so exact? Well, the more you know...