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Re: Amorphophallus Titanum offset?

  • Subject: Re: Amorphophallus Titanum offset?
  • From: Douglas M Ewing <dewing@u.washington.edu>
  • Date: Wed, 26 Jan 2011 12:03:00 -0800 (PST)

I too, have had A.titanum produce offset tubers below ground. My experience is that young seedlings will produce multiple leaves, but they are in succession, as the old leaf is starting to die, the new leaf is replacing it. This does not result in division of the tuber. But, anytime you have more than one leaf on a tuber of reasonable size, it means you will have a tuber for each leaf when you dig the plant up after leaf death. I have seen 3, even 4.

Will also mention that producing clonal tubercles of titanum is pretty easy using leaflet cuttings.


On Wed, 26 Jan 2011, Daniel Devor wrote:

Jason,  This is not that unusual as you will likely here from others here.  Mine have done it multiple times, in fact one of mine has 2 extra leaves at
the side of the main growth now that just went dormant so unless momma consumes them if they are still attached I will have 3 rather than 1 when I
unpot.  Good luck with yours,
Gibsonia, PA
      ----- Original Message -----
From: Jason Sarine
To: aroid-l@www.gizmoworks.com
Sent: Saturday, January 22, 2011 8:46 PM
Subject: [Aroid-l] Amorphophallus Titanum offset?

Well here is some food for thought. I dug up one of my titanums that was going dormant to repot today and imagine my surprise when I found a
second smaller tuber alongside the main one. It had a small second leaf all summer but I imagined it was just feeding the main tuber as I thought
they did not divide or offset, but here we are.  Now I pose this question. The seller I bought these from grows their stock from seed. Could some
genetic diversity have actually created an offsetting titantum? I guess another growing season is in order to see if it holds this trait.  Bye

Jason Sarine


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Doug Ewing
Botany Greenhouse Manager
Dept. of Biology
Box 351800
24 Kincaid Hall, University of Washington
Seattle, WA 98195-1800
ph: 206 543-0436
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