Author Topic: Arisaema 2009 (Read 19833 times)

Paul T · « **Reply #90 on:** July 06, 2009, 12:39:22 AM »

Wow, Johan. All very nice.

Johan Nilson · « **Reply #91 on:** July 12, 2009, 07:40:01 PM »

Arisaema galeatum and Arisaema tourtosum were both growing at lower elevations at around 2000 m sometimes together with
A. speciosum. The other species that I have shown here were all found between 3000 - 4000 meters. A. propinquum was the one we came across at the highest altitudes.

The foliage of the Arisaemas is always very interesting and we got to see some very nice leaf forms.

1 A. galeatum
2 A. tourtosum
3-5 different leaf forms

Paul T · « **Reply #92 on:** July 12, 2009, 11:25:44 PM »

Johan,

Numbers 3 and 4 are very unusual. The dark leaf in particular in amazing. Have seen silver centres to leaves before, but not dark striped like your #4. Fascinating.

johnw · « **Reply #93 on:** July 13, 2009, 06:00:01 PM »

I didn't realize Arisaema ringens leaves got so huge. Visiting a friend's garden this morning we measured the leaves at 35" (90 cm) across) tip to tip. Is this unusual or just the incredibly moist and cloudy weather we've been having?

johnw

Paul T · « **Reply #94 on:** July 13, 2009, 11:45:32 PM »

John,

A friend reported that they had a leaf on Arisaema candidissima over 4 feet wide. His obviously get more water than they do here in my garden.

johnw · « **Reply #95 on:** July 14, 2009, 01:43:09 AM »

Quote from: Paul T on July 13, 2009, 11:45:32 PM

John,

A friend reported that they had a leaf on Arisaema candidissima over 4 feet wide. His obviously get more water than they do here in my garden.

Good grief.

johnw

galahad · « **Reply #96 on:** November 05, 2009, 07:08:42 AM »

A question for you Arisaema gurus out there. Does A. taiwanensis flower at the same aspect each year i.e. with the flower facing the same direction each year?

Paul T · « **Reply #97 on:** November 05, 2009, 11:11:05 AM »

I've wondered the same thing myself. Not that particular species, but for the Arisaema in general. A. taiwanense is just opening here at the moment.

galahad · « **Reply #98 on:** November 05, 2009, 07:18:08 PM »

I am wondering if I lift and rotate whether that will make a difference

Lesley Cox · « **Reply #99 on:** November 05, 2009, 07:34:33 PM »

Mine isn't up yet so I can't say but my AA. sikokianum and candidissimum DO flower facing the same way each year. It annoys me because candidissimum faces a fence and I can't get on the other side of it to see the flowers properly, I only see the backs. I did lift some and turn them a couple of years ago but they still flower the same way. It's not towards the sun, both species flower with their backs to the sun.

galahad · « **Reply #100 on:** November 05, 2009, 07:40:57 PM »

Thanks for that Lesley. It is really annoying. Maybe the flowers just grow facing North (mine are north facing) like little phytocompasses

WimB · « **Reply #101 on:** November 07, 2009, 02:02:52 PM »

Quote from: galahad on November 05, 2009, 07:40:57 PM

Thanks for that Lesley. It is really annoying. Maybe the flowers just grow facing North (mine are north facing) like little phytocompasses

I think those flowers are just shy

, they always seem to flower away from the path or the place where you have the clearest view.
I'm certain they don't turn to the north, I once grew some A. sikokianums against a north facing wall and they all flowered with their faces to the wall, so they were south-facing...
Maybe they turn their faces to the darkest spot??

Maggi Young · « **Reply #102 on:** November 07, 2009, 02:47:29 PM »

May I draw your attention to some photos from Paul T. and comments by Rogan, here:
http://www.srgc.org.uk/smf/index.php?topic=950.msg119088#msg119088 ?

galahad · « **Reply #103 on:** November 07, 2009, 05:38:54 PM »

Aha! Thanks, Maggi. That makes sense.

Maggi Young · « **Reply #104 on:** November 07, 2009, 05:50:00 PM »

Yes, Ross, it made sense to me too.... Paul's photo showed it to a treat.

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