I'm sorry for any inconvenience. However, I have asked the same question
in the corresponding German group without success. Within a special part
of my garden comprising of mainly Himalayan plants I found a few
seedlings last year which I could not identify.
http://www.wolmershaeuser.de/bilder/Keimling.jpg In autumn they got
dormant leaving behind white spherical "bulbs" of 3-4 mm diameter. In
late spring this year new leaves emerged.
http://www.wolmershaeuser.de/Aroidea.jpg I should add that these plants
seem to be hardy in Germany.
Thanks in advance for your help.
Gotthelf

--
http://www.wolmershaeuser.de

It is an 'Aroid' of some description, as it seems you have already gathered?
The only thing I can suggest, is emailing a specialist grower of the genus for ID as, without a flower, it's almost impossible.
Sorry I cannot help any more :-(

I found a link to a specialist Aroid forum for you...hope this helps?
Aroid Forum: Titanum at National Botanic Garden, Washinton, D.C.

Am 10.06.2011 20:57, schrieb Jeff Layman:
On 10/06/2011 11:18, G Wolmershäuser wrote:
I'm sorry for any inconvenience. However, I have asked the same question
in the corresponding German group without success. Within a special part
of my garden comprising of mainly Himalayan plants I found a few
seedlings last year which I could not identify.
http://www.wolmershaeuser.de/bilder/Keimling.jpg In autumn they got
dormant leaving behind white spherical "bulbs" of 3-4 mm diameter. In
late spring this year new leaves emerged.
http://www.wolmershaeuser.de/Aroidea.jpg I should add that these plants
seem to be hardy in Germany.
Thanks in advance for your help.
Gotthelf


Looks like an Arisaema to me. But may be difficult to say which
particular species until it flowers.

Thanks for your answer, Jeff. My first thoughts were Arisaema too. All
the more there are some different Himalayan Arisaemas near by. However,
none of them has comparable leaves as an adult plant. Once I established
this part of the garden I did not have enough true Himalayan plants and
thus I have put in a few items from the adjacent areas. One of them was
Arisaema fargesii which is probably the parent of my seedlings.
Many thanks again for your help.
Gotthelf

--
http://www.wolmershaeuser.de

On 11/06/2011 19:32, G Wolmershäuser wrote:
Am 10.06.2011 20:57, schrieb Jeff Layman:
On 10/06/2011 11:18, G Wolmershäuser wrote:
I'm sorry for any inconvenience. However, I have asked the same question
in the corresponding German group without success. Within a special part
of my garden comprising of mainly Himalayan plants I found a few
seedlings last year which I could not identify.
http://www.wolmershaeuser.de/bilder/Keimling.jpg In autumn they got
dormant leaving behind white spherical "bulbs" of 3-4 mm diameter. In
late spring this year new leaves emerged.
http://www.wolmershaeuser.de/Aroidea.jpg I should add that these plants
seem to be hardy in Germany.
Thanks in advance for your help.
Gotthelf


Looks like an Arisaema to me. But may be difficult to say which
particular species until it flowers.

Thanks for your answer, Jeff. My first thoughts were Arisaema too. All
the more there are some different Himalayan Arisaemas near by. However,
none of them has comparable leaves as an adult plant. Once I established
this part of the garden I did not have enough true Himalayan plants and
thus I have put in a few items from the adjacent areas. One of them was
Arisaema fargesii which is probably the parent of my seedlings.
Many thanks again for your help.
Gotthelf


Is it possible that it is a form of A. flavum, as that is certainly
fairly hardy? It may have a different leaf form as it gets older, too.

If you have some time you can always look through the pages at:
http://www.aroid.org/genera/
But perhaps someone at that site can help you if you send them the
photograph.

By the way, your garden looks wonderful. I do not understand German
but, as we say, a picture is worth a thousand words (actually Google
Translate does not do a bad job, so it was interesting to read about
your garden).

--

Jeff

Am 11.06.2011 21:48, schrieb Jeff Layman:

Is it possible that it is a form of A. flavum, as that is certainly
fairly hardy? It may have a different leaf form as it gets older, too.

Maybe it is A. flavum as there is a plant of this species nearby. I
wasn't just aware that the leaf form can change that much in due time.

If you have some time you can always look through the pages at:
http://www.aroid.org/genera/
But perhaps someone at that site can help you if you send them the
photograph.

Yes, this is a very interesting and informative site. But I think I will
just cultivate the plants for a few more years and wait for the result.
Gardeners are always curious :-)

By the way, your garden looks wonderful. I do not understand German but,
as we say, a picture is worth a thousand words (actually Google
Translate does not do a bad job, so it was interesting to read about
your garden).

Thank you very much for the compliment. I'm always concerned to bring
together garden design and a diversity of plants though our sandy soil
and our harsh climate limits the choice. I feel myself permanently
inspired by the great British parks and gardens (although I know I will
never reach them).
Cheers
Gotthelf

--
http://www.wolmershaeuser.de