Trillium ID needed

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Gene Mirro
Title: Guest
Joined: 2010-02-25
Trillium ID needed

I got this as Trillium chloropetalum. It's a western US species or hybrid. It multiplies by bulb offsets, and is very vigorous. Any ideas?

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How do you distinguish between T. albidum and T. chloropetalum?

Thanks.