Warning: This is 3.0 Edition material. It is possible that there is more recent 3.5 Edition version.
Inaccurate?

Regenerate Circle

(Masters of the Wild: A Guidebook to Barbarians, Druids, and Rangers)

Conjuration (Healing)
Level: Druid 6,
Components:

This spell is the same as regenerate ring, except that it grants fast healing at the rate of 3 hit points per round.