was curious on how they were registered and saw that he was describing his "beards" as "appendages" in his registrations. That's an interesting term that I haven't considered before!
That rather makes one wonder what the objection is, then, to calling them cristate, which means (in botany) "bearing any elevated appendage on its surface"! (e.g. reference - Introduction to Structural and Systematic Botany, and Vegetable Physiology by Asa Gray, 1860).