Mystery aroid

[Matt T]

Hello folks,
Wondering if anyone can help with this one. I picked up some tubers at the Discussion Weekend 2015 small bulb exchange. They were labelled "Biarum sp. G-85-20-01". However, the lobes at the base of the leaves tell me it's not a Biarum. I've not had any flowers. Anyone out there an expert at ID'ing aroids from their leaves?
Thanks!

[Diane Clement]

Leaves look like Arisarum?

[Matt T]

They are very similar to what I grow as A.vulgare, but this plant seems to be stouter and more robust than that or any I've seen in the wild. I guess this could be a particularly good form.

[aristoflora]

I agree with the point you mention it could be a form - indeed, there is a species existing that was once regarded as a form of Arisarum vulgare, Arisarum simorrhinum. I'm quite sure this could be it.

Warm regards,
aristoflora

[Matt T]

Thanks for that information, Aristoflora. A. simorrhinum is a good looking plant. I'm sure my plant is an Arisarum species, so I will wait for flowers next autumn to confirm which one.

[Karaba]

At first glance, they were looking like Arum leaves. Matt's leaves seems to have too many veins, the backward points too sharp and the general form not enough round-oval to be Arisaema leaves. But I'm far from beeing an aroid specialist.
How long are the leaves of your plant, Matt ?

[johnralphcarpenter]

Hope it's not Arum maculatum, I've been trying to eradicate that from the garden for years. Local woods and hedgerows are full of it.

[Matt T]

At first glance, they were looking like Arum leaves. Matt's leaves seems to have too many veins, the backward points too sharp and the general form not enough round-oval to be Arisaema leaves. But I'm far from beeing an aroid specialist.
How long are the leaves of your plant, Matt ?

The leaves are about 5" / 12cm long. The habit of the plant does not suggest Arum to me and it's definitely not Arisaema - the tubers were totally different, very irregular and with growth points from all over the surface such it was hard to know which way to place them!