For the curious, here's a bit of background on plants in the agave family. A select group of these plants (especially Yuccas and Agaves from the Manfreda group) have been used traditionally to produce a special kind of soap, usually obtained by beating the roots in the presence of water.
I have been adding the name "amole" to these plants in the database since that is the term used to describe them in Mexico. The first 30 that come up in the search are relevant to this discussion:
https://garden.org/plants/sear...
There's a bunch of spurious hits as well from words like "Guacamole" which contain "amole" but mean something else. Anyway... the top half of the search returns are plants called "amole", which is helpful.
The name "amole" is a contraction of the Nahuatl words for "water" and "stew" and it refers to the process by which the soap is released from the plants for human use, resulting in a frothy solution. Nahuatl is a dominant indigenous language of central Mexico (1.7 million speakers today). More details on the etymology here:
https://es.wikipedia.org/wiki/...
If anyone else knows of a plant used for this purpose which has not been tagged "amole" in the database, please let me know.