Treesinger whileshape = animal?

[Michael Dupler]

Everything for druids states "animal" for example, the spell beastspeak. Or Planar Wild Shape.

Treesinger states: This ability replaces, and otherwise functions like, the normal druid wild shape ability.

So would it be fair to assume since the treesinger only gets plant that you could substitute 'animal' for 'plant'

or is the treesinger more screwed than I thought?

thanks

[avr]

The normal druid wild shape gets to change into a plant eventually too, but beastspeak is very clear about working only with animals, as is planar wild shape. No trees need apply.

Natural spell, powerful shape & some others just specify wild shape though.