Pentamerous: species having five-jointed tarsi.
"Explanation of Terms Used in Entomology" by John. B. Smith
To take an example, the group Pseudostrobus, characterized by pentamerous leaf-fascicles, appears in many systems.
"The Genus Pinus" by George Russell Shaw
It is pentamerous, complete, symmetrical and regular.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5" by Various