A. italicum is one of the most variable plants i have ever seen. Every italicum in my yard, every single one, is different, in every consievable way. So to answer your question, yes, they are extrmemely variable.
>From: "David S." <firstname.lastname@example.org>
>Reply-To: Discussion of aroids <email@example.com>
>To: "Aroid-L" <Aroid-L@gizmoworks.com>
>Subject: [Aroid-l] Arum italicum
>Date: Mon, 20 Sep 2004 23:23:15 -0400
>I've been growing what appear to be several varieties of Arum italicum for
>several years. I first got started with what was sold as A. italicum
>through Park Seed Co.'s wholesale division about seven years ago. These
>came as quite large, long tubers and were planted vertically about 4" deep.
>When they came up, and it became more apparent over the years, they were
>very different looking plants. Some of them had large, all green leaves and
>others had similar shaped, but not exactly, and had silver patches and spots
>on them. The inflorescences are also quite variable. Some are mostly
>green, others, greenish yellow and some of those have either a light or
>heavy flush of purple inside. Some of them also had purple/red spadixes
>while others were white. These all had tall seed spikes with red berries.
>They are just now starting to put out leaves and I'm going to tag them as to
>leaf type vs. inforescence. To add more confustion to this, I bought
>several pots of what were sold as A. italicum 'pictum' a few years ago and
>set them out in a raised bed when they went dormant. They had much smaller,
>yet elongated tubers and they were growing horizontally. Their leaves are
>dark green with heavily silvered veins. They are much shorter plants than
>the others mentioned above with somewhat smaller pale green spathes. All
>had short seed spikes with orange berries.
>I'm having a devil of a time figuring them out. Is this species variable
>like this? I've seen so many pictures on the internet that are variously
>labeled A. italicum, A. italicum 'pictum', A. italicum var. italicum, A.
>italicum subsp. marmoratum, A. maculatum & etc. All of these look like one
>or more of what I have. Whatever they are, they are beautiful plants during
>the cold weather months! The large one I first mentioned are growing in a
>bed interplanted with mature Typhonium venosum. As the arum leaves are
>fading, the typhonium leaves are just starting out and the area stays
>constantly green all year. Any comments from you all?
>Kingsport, TN (zone 6a)
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