ID help, please -- urgent

[Pacific Rim]

Hello, all.

A friend with a deadline of today urgently needs a name for an Arisaema in
his collection. Since time is short, I have posted a picture at the top of
the page at http://www.hillkeep.ca/study_centre.htm

I'm hoping you experts will blow this plant's cover too fast to make posting
a picture to the Utrecht ID site worthwhile; but I'd be happy to post there,
too; am not snubbing Utretcht. 8-)

This Arisaema was received several years ago as A. uralense
(which seems not to exist). It rapidly forms clumps. It looks a lot like
Arisaema triphyllum. Its pseudostem seems exceptionally thick, however, and
in Zone 8 it flowers in March-April, rather than in May-June. It has already
breached the ground.

I finally received my copy of The Genus Arisaema only yesterday. It
apparently circled the planet somewhere beyond the asteroid belt belt for
months before reaching me. Anyway, I am not yet in a position to hazard any
guesses about the ID of any Arisaema.

Hoping for a swift diagnosis

Paige Woodward
plants at hillkeep.ca
www.hillkeep.ca