cuahuitl (Mdz41r)
This simplex glyph for the place name, Cuauhxomolco, is duplicated here as a sign for tree(s) (cuahuitl). The corner (xomolli) is a separate element that has been neatly woven into the sign for tree. The tree has typical two-tone green foliage, the terracotta-color trunk, and the black stripes (one thin, one thick) across the trunk are all classic elements of the iconography meant to elicit the reading "cuauh."
Stephanie Wood
The black stripes (tlilcuahuitl) are phonetic indicators that this sign is a tree (cuahuitl), something I discovered independently, but which has also been pointed out by Brígida von Mentz ("De árboles, raíces, y locativos en la iconografía del México antiguo," Tlalocan 15, 2008, 216–219).
c. 1541, but by 1553 at the latest
trees, árboles
cuahui(tl), tree(s), https://nahuatl.wired-humanities.org/content/cuahuitl-1
tlilcuahui(tl), black stripe(s), https://nahuatl.wired-humanities.org/content/tlilcuahuitl
Codex Mendoza, folio 41 recto, https://digital.bodleian.ox.ac.uk/objects/2fea788e-2aa2-4f08-b6d9-648c00..., image 92 of 188.
The Bodleian Libraries, University of Oxford, hold the original manuscript, the MS. Arch. Selden. A. 1. This image is published here under the UK Creative Commons, “Attribution-NonCommercial-ShareAlike 3.0 License” (CC-BY-NC-SA 3.0).