Improved Familiar Plant?

[Umbranus]

Is there any plant that can be used as improved familiar other than the mandragora?

[SirCorius]

I have actually been wondering the same. I don't seen the Mandragora on the list of improved familiars though.

[Cuuniyevo]

Mandragora is from the Second Darkness AP, and does seem to be the only plant familiar. Personally, I'd probably allow my players to cast Awaken on a plant and then try to take it as their new familiar. Maybe make some hoops they'd have to jump through, but Awaken seems like a reasonable starting point.

[Markov Spiked Chain]

Presumably, a Celestial Petrifern (from the new Familiar Folio) would be legit. And FF has a Druid archetype that can get a couple of Leshy types (not Improved Familiar, though.)