Very interesting. I have grown Obesa's for many years and I have never had one change to a monstrosus. These are wonderful plants. How old is the plant and where did you aquire it?

Thanks,

Gourdglutton-a Euphorbia lover.

What a mess ;o)
I've seen a few and your is a beauty!

Rather than a monstrosus form, I think it's cresting, and if so it might be better named E. o. v. cristata.

I agree, a nice plant.

Have you ever posted something that you realized was wrong as you pressed the 'submit' button?

There's no such word as monstrosus, as much as I'd like there to be.

That should be 'monstrose'.

Thank you and good Halloween morning.

It looks like it's doing both.

I got it about 10 years ago, from a cactus&succulent nursery in the UK.

I have had cristate plants before - where new growth doesn´t come from a single growing point, but from a growth line. This has 3 distinct growimg points.

And I think monstrosus is a lovely word, even if I made it up myself - no, I am sure I must have seen it somewhere.

Could somebody clarify the meaning of monstrose and cristata for me?

I guess 'monstrose' includes all abnormal growth of a plant except for 'cristate', where growth is in a crested pattern.

Here's a cristate (Aeonium somethingoranother v. variegata f. cristata) version of an Aeonium:

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And one of a Trichocereus:

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Cristates occur when growth occurs from a line, rather than radially from the usual growing point.

This causes the plant to grow in a fan shape, and is nicely illustrated by this cristate Cephalocereus senilis, you can see the growth developing from the central line.

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