Arisaema 2012

[McDonough]

Cool looking Arisaema Aaron, a distinctive flower shape.

Speaking of distinctively shaped Arisaema plants, here's one that appeared in my garden, I had just assumed it was a small grouping of A. triphyllum seedlings that pop up all over the place.    It has three narrowish leaflets that stand straight up, and an open upright flower, tall and slender growing overall.  What could it be?  In the scene, Trillium grandiflorum and the low T. foetidissimum are blooming, leaves of regular A. triphyllum are there too. In the photo on the right is a view showing Trillium foetidissimum and the stem bases of the mystery Arisaema on the left and a regular A. triphyllum on the right.

Mystery Arisaema, self sown seedlings:


On the left, closeup of the mystery Arisaema, on the right-hand photo, the folded-lid flower of regular A. triphyllum on the left, and the open spathe of the mystery one on the right.



From Darrell Probst, this is A. kishidae, diaphanous nearly see-through flowers and nicely marked leaves.  Behind it is the emerging shoot of another Arisaema "sp." that Darrell collected in China, that might be close to  A. taiwanense or A. sukotaiense. 



For context, this link is to my original post on an Arisaema sp. collected by Darrell Probst in China:
http://www.srgc.org.uk/forum/index.php?topic=950.msg153081#msg153081

...and a response from an SRGC forumist, discussing A. taiwanense and A. sukotaiense:
http://www.srgc.org.uk/forum/index.php?topic=950.msg154030#msg154030
Arisaema aff. sukotaiense


Last, is a nice little grouping of A. triphyllum seedlings flowering for the first time; I like the reddish stems catching sunlight.  As cute as they are, some forms of A. triphyllum get large and will take up too much space, so I might need to move these to a different location next year.




Another one from Darrell Probst, a dwarf speckled version of A. amurense, really cute... can't remember where he said he collected this one.

Arisaema amurense "dwarf speckled":

[Hoy]

At last! Arisaema elephas shows signs of life. It is always late however. (I believe it is elephas but am not sure.)

[Hoy]

Here are the flowers. I have 3 different plants and although the leaves are very similar the inflorescences are not. The second one flowers a week before the others too.

   


Edit: I got a name for the middle one on SRGC site: Arisaema wilsonii!

[bulborum]

The second doesn't look as Arisaema elephas

Roland

[Hoy]

The second doesn't look as Arisaema elephas

Roland

You are right, Roland! It is probably A wilsonii. However, the leaves are remarkably similar!

[Lori S.]

All I got these days... Arisaema triphyllum:


I've never noticed seeds forming, but I guess they must have, as I noticed a plant in a new spot this evening.

[Hoy]

I also have some plants that do not set seeds. However I just read that Arisaema is unique in changing sex during their lifetime. They starts as males and later changes to females but can continue changing. I know shrimps do the same, start as males and change to females at the age of 5!

Maybe that's why some plants don't set seeds.

[Gene Mirro]

Arisaema dracontium:



USA native.  Does well for me in full sun.  The slugs like it. 

[Gene Mirro]

Arisaema consanguineum:

[bulborum]

Here Arisaema candidissimum starts flowering
grown from seeds , it took 4 years

Roland

[McDonough]

Hello Arisaema fans, I'm intrigued by all Arisaema, and all those that have been posted here are great to see and learn about. I have taken many photos during the 2012 year with intent of posting the photos, but available time proved too much of a challenge.  I hope to catch up over the fall and winter months.  But here's a timely one, the "fruit cones" on a rather remarkable hybrid (Arisaema triphyllum x tashiroi), a large robust plant with huge triphyllum-like leaves, but with a taller stem and the unique snake-like striped leaf-sheathes on the stem. I have recently harvested the "berries", sowing half of them, giving the other half to a friend and superb grower Marsha Russell.

The fruits were very squishy, just touch them and they popped with juice and spit out a few seeds.  My friend Marsha tells me that A. triphyllum has but one seed per "berry", whereas this one has up to 6 seeds per berry.  One can clean the seed, but be forwarned, you may want to wear gloves, as the berries seem to have an astringent that can lead to blistering or skin-layer shedding.  Personally, I prefer to sow whole-berry, scratched into the soil near the mother plant, and always gets lots of seedlings. In the photos below, this year I sowed a couple flats using whole berries, they should germinate in spring just fine.

[Hoy]

My plants usually don't set berries or if they do the berries quickly disappear   I am sorry I have never seen seedlings in my garden either as any increase in my Arisaema population would be most welcome!

[Afloden]

Gene,
 
 That should be A. heterophyllum? Dracontium has the inflorescence below the leaves. I have many of them from several parts of the range, but no see whatsoever this year on Arisaema. Too much rain all spring.

[Toole]

In the photos below, this year I sowed a couple flats using whole berries, they should germinate in spring just fine.

Hello Mark
 
'berry' informative pics --sorry about the pun ---i just couldn't help myself   
I'm intrigued by your 'flats'---they seem quite shallow or is it just the angle of the photo ?.

While most of the Arisaemas here are just breaking the surface in pots, troughs and the garden proper, this one is up and in full flower--grown from seed but label long gone --hopefully i'm correct in keying it out as A.amurense.

Cheers Dave.
 

[McDonough]

Hi Dave, the peat flats are normal depth (several inches), it's just the angle of the photograph giving an illusion of being shallow.  The blue styrofoam flats are actually repurposed flats, more shallow than the peat flats, these are from packages of mushrooms that I buy from the grocery store, I poke drainage holes through the bottom with a pencil, they make pretty good flats for seed germination, and maybe will last longer than the peat flats which decompose in a year or so.

I agree with your ID of Arisaema amurense.