Jack-in-the-Pulpit (Arisaema sikokianum)

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Lophophora Tokyo, Japan Apr 17, 2004

Jack-in-the-Pulpit
Arisaema sikokianum

A close-up showing the wonderful contrasting colors.

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Post #841291
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Toxicodendron Piedmont, MO(Zone 6a) Apr 17, 2004

That's beautiful, Lophophora.
You are making me lust for one again (it has been on my want list for years).
Congratulations for growing and posting it!

Post #841484
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Lophophora Tokyo, Japan Apr 17, 2004

Thanks Ivy!

I'd offer you seed, but my single plant has never set in the 7 years I've had it - many Arisaemas come up either as male or female plants and need a partner to produce, and as far as I can tell, A. sikokianum is one of them.

I did a quick google and found at least 3 US companies offering it mailorder, prices ranging from 20 to 28 bucks. Maybe this autumn someone nice will give you an early Christmas present??!!

;)

Post #841624
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Toxicodendron Piedmont, MO(Zone 6a) Apr 18, 2004

Yes, they are pricey...and I really don't NEED it, hah. Thanks so much for the seed offer (if you had any). I did not know that they are often monoecious plants. (Did I spell that right???) I will just have to look at my natives for now.
Susan

Post #842102
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Lophophora Tokyo, Japan Apr 18, 2004

He he...

Yes, you spelled it correctly, but check this out:

"All plant species are either monoecious (the commonest situation, male and female flowers occur on the same individual) or dioecious (when male and female flowers occur on separate plants). When dealing with dioecious plants, e.g. Ginkgo biloba, the sex of a specimen, male or female, is determined genetically and does not change throughout its life. In most aroid flowers, the spadix is monoecious, i.e. bisexual, with male and female flowers separate on the same inflorescence.
But arisaemas have a strange gender variability. They differ from all other Araceae by sex changes, which may occur, year by year, in a reversible way. This character is so peculiar that a new adjective has been proposed by Nakai (1936): paradioecious. This term is in use by Arisaema workers even if, strictly speaking, it does not apply to Arisaema, as pointed out on the Web (December 2001) by S. Renner, University of Missouri. They are not on the way to dioecy, and their sexual behaviour is not evolutionary. Indeed, depending on age and nutrition, this sex change is related to the strength of the specimen."

(From Guy & Liliane Gusman, The Genus Arisaema, 2003)

Post #842565
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Toxicodendron Piedmont, MO(Zone 6a) Apr 19, 2004

How fascinating...sort of like aphids, who can give birth by parthenogenesis as well as laying eggs, depending on the need. Well, it has been too long since I studied all that, I guess, because I should have said I did not know they were dioecious. Not that I could spell any of it now, either, LOL. Thanks for the new vocabulary word, anyway!

PARADIOECIOUS (Just practicing)

Post #843288
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