deformity or biological wonder?

There are some things I just don’t get. Waf­fles topped with fried chicken and syrup, for one thing. Crested suc­cu­lents, another.

A trip to a cac­tus show or nurs­ery site for suc­cu­lents will likely turn up a sec­tion devoted to plants with crested (or “cristate”) and mon­strose growths. Gen­er­ally I find that the shapes of plants are inter­est­ing enough, and I usu­ally don’t go gaga over some genetic oddball.

crested-euphorbia-lambii

But the odd­ball crest­ing behav­ior found its way to the gar­den any­way. This is a young Euphor­bia lam­bii in the back yard, one of four I have grow­ing in pots.

crested-euphorbia-lambii-closeup

Here’s a closeup…

crested-euphorbia-lambii-from-above

And here’s a view from the top…

normal-euphorbia-lambii

The typ­i­cal habit for this plant is to pro­duce branches that are dis­trib­uted around its grow­ing tip, some­thing that you can see in this nor­mal lam­bii nearby. With the crested muta­tion, the api­cal meris­tem, the point where new growth emerges, has changed from a point to a line. So instead of a cylin­dri­cal stem with branches all around, you get a stem that grows flat, like a cobra’s hood, with new growths dis­trib­uted along that line.

From what research I’ve done it isn’t appar­ent what causes this par­tic­u­lar muta­tion. The genus Euphor­bia, how­ever, is one of those where you could encounter it fairly com­monly. (If there’s any­thing in the plant’s envi­ron­ment that caused it, I won­der if might be drought stress. Of the four plants, this one received the least amount of water. A cou­ple times it came close to defo­li­at­ing. All the oth­ers are grow­ing normally.)

I’ll admit that the crested growth inter­est­ing. Maybe I’ll learn to love it. But I’m not there yet…

June 22 2009 05:26 am | Categories: gardeningmy garden | Tags:

3 Responses to “deformity or biological wonder?”

  1. Greg on 24 Jun 2009 at 5:36 pm #

    Hmmm. That’s a lit­tle unusual, eh?

  2. tina on 25 Jun 2009 at 6:39 am #

    That crest IS extremely inter­est­ing. It will cer­tainly start con­ver­sa­tions. The euphor­bias are so cool all by them­selves then to get a muta­tion is way cool.

  3. [ Lost in the Landscape ] » mutant primrose on 12 May 2011 at 6:34 am #

    […] on one of the plants. I’ve noticed this crested growth pat­tern in the gar­den a few times, most recently on a euphor­bia. But this is the first time I’ve noticed it on a primrose–or any other local native plant for […]

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