f65r - extensive attack

[VViews]

I find it not unlikely that alam was written first to label the leaf (or the plant on the whole), and only afterwards, maybe at another time as an afterthought, otaim dam was added to the left.

What's interesting about this folio is that it looks as if the author never intended to place regular text there. The image occupies too much space.

I agree with this.
The placement of the text is odd. Although the plant takes up the full space of the page, there was definitely room to add the label without touching the plant outline.

Speculating here, but it makes me wonder if this text could be written by the illustrator rather than the scribe (Or if they are the same person, during the illustration phase rather than the text phase of the page's composition). 
The note is on the "good" side of the plant, the other side of the plant was incorrectly drawn (as David has noted in the OP), so this might be a note from the illustrator saying "leaves should look like this", "these leaves are accurate" or something along those lines.

Other possibilities that come to mind: the label simply reads something like "not enough space for description".
Also, if the Voynich herbal section was copied from another document, the lack of text on the page could be an artefact of the original document, so: "description missing in original"?