Arisaema 2011

[Pascal B]

Arisaema heterocephalum, the second member of section Clavata I have in flower. Looks superficially like a small form of serratum, plant is hardly 30 cm tall.

[Hoy]

Anybody who has a clue to this one?

Do you have close-ups of the flower? It looks like a member of the asperatum/wilsonii alliance, a plant Chen Yi used to ship under A-10.

Sorry, no useful closeups for the moment. However they can be Chen Yi plants or seedlings from Chris Chadwell. I'll try to get closeups this summer.

[WimB]

Two Arisaema's flowering here now:

Arisaema griffithii and
Arisaema ovale amurense (With thanks to Pascal for providing me with the correct name)

[Pascal B]

Wim,

Although amurense and ovale are closely related I think your plant is more likely amurense, ovale has a narrower spathe where the veins are ridgelike and a thinner appendix. Attached a picture of ovale which shows it a bit. Amurense also usually has the broad, fluffy, salad like leaves (like on your picture) whereas ovale has narrower and more elegant leaves.

[Graham Catlow]

I have lost several Arisaema's this winter but some have survives such as this A. griffithii. Hopefully more to come later.

[Michael J Campbell]

I found this little chap this morning hiding under a Camellia.

   Arisaema sikokianum

[Pascal B]

Some of the early species: limbatum and the prolific thunbergii ssp. thunbergii. Third is probably one of the most unique in the genus, A. cordatum from S China.

[manicbotanic]

pascal
love the cordatum
just wish i could get hold of it...

[Pascal B]

pascal
love the cordatum
just wish i could get hold of it...

I have plans to put it in tissue culture for ex situ conservation purposes but it is not the easiest to grow. And certainly not hardy so it is more a niche plant rather than a future hit on the showbenches. It is a cousin of Arisaema thunbergii and kiushianum but slower to propagate.

[jshields]

Arisaema sazensoo.  This plant came from the U.C. Berkeley Botanic Garden last summer.  The only thing I did was unpack it and plant it in the garden last summer sometime.  Of the three rather large tubers I received, only two seem to have come up this spring.

A. ringens is just starting to poke up out of the ground.  A. fargesii barely survives here, putting up one moderate size leaf each year, never getting any bigger, never flowering.  A. heterophyllum is quite hardy here and seems to bloom every year.  These plants grow in or at the edge of my woodland garden.  My garden is USDA cold zone 5.  We have A. triphyllum native here, of course.

Jim

[Pascal B]

Hi Jim,

Your plant is not Arisaema sazensoo but Arisaema engleri (or if we believe Murata and Li Heng in the new flora of China: A. bockii). Sazensoo has a single leaf without a pseudostem and a fat appendix hidden under the spathe (see: http://www.aroid.org/genera/speciespage.php?genus=arisaema&species=sazensoo). It comes from Japan whereas Arisaema engleri is a China native.

[alpinelover]

Arisaema sikokianum, a very handsome guy.

[jshields]

Your plant is not Arisaema sazensoo but Arisaema engleri (or if we believe Murata and Li Heng in the new flora of China: A. bockii). Sazensoo has a single leaf without a pseudostem and a fat appendix hidden under the spathe (see: http://www.aroid.org/genera/speciespage.php?genus=arisaema&species=sazensoo). It comes from Japan whereas Arisaema engleri is a China native.

Thanks Pascal, I appreciate the heads-up.  I'm just as happy having engleri as I would be with sazensoo, as long as it is hardy here.  I'll mention this to Paul Licht at the UC Berkeley B.G.

Jim

[Robin Callens]

Some pictures of reliable Arisaemas in the garden:

Arisaema wattii
Arisaema nepenthoides 'Black Panda'
Arisaema serratum x kishidae
Arisaema lobatum
Arisaema taiwanense
Arisaema species ex griffithii-utile-propinquum complex

[johnw]

How ghostly is that wattii!   

johnw