acatl (Mdz50r)
This element for reed (acatl) has been carved from the compound glyph for the place name Acazacatlan ("Near the Reedy Straw"?). This component of the compound glyph singles out the reed plants, which are tall, leafy, and turquoise-colored. The grasses that also appeared in the original compound have been removed from this glyph. Remnants of the yellow color of the grasses (zacatl) remain on the edges of these reed plants.
Stephanie Wood
This element for reed/cane shows classic plants, painted a classic color. Reeds were year signs in the Mesoamerican calendar and day signs in the day count (tonalpohualli). Reeds also had many practical uses, one of which was for making darts and arrows. Thus, some of the attestations of the glyph for acatl will look a lot like darts and arrows (acatl or mitl), with their red and yellow coloration at each end and with added feathers, but without the arrowhead. The added arrowhead is more likely meant to convey mitl, not just acatl. The presence of two reed plants (acatl) may be intended as a plural.
Wikipedia has published a photo of acatl plants.
Stephanie Wood
c. 1541, or by 1553 at the latest
Stephanie Wood
reeds, xiuhpohualli, año, turquesa, xihuitl
aca(tl), reed, cane, reed-arrow, reed-dart https://nahuatl.wired-humanities.org/content/acatl
reed
la caña
Stephanie Wood
Codex Mendoza, folio 50 recto, https://digital.bodleian.ox.ac.uk/objects/2fea788e-2aa2-4f08-b6d9-648c00..., image 110 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).