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Re: Zamioculcas zamiifolia

The petiole grows from a unique structure beneath the soil known as tuberous rhizome roots.  Tuberous roots are true root tissue that is swollen possessing tuberous portions that radiate from a central point known as a crown. The crown serves as the growth point for the petiole and is effectively the stem.  The petiole changes to become the rachis (RAY-kis) at the point where the leaflets begin to grow creating a single compound leaf so Marek, you had it correct.

this comes close to the Clivia, except for the strap leaf, which is of course a giant of a difference. those fat juicy roots are often called "A bulb" which they are not, and then some sort of chaotic thing happens and you get strap leaves. Well, as I said it is not an Aroid but the similarity in root business struck my interest.

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