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120° symmetry
"Guy King" wrote in message ... I've got these sunflower seedlings - most of which like the one in the bottom of the picture have two cotyledons and paired leaves. http://www.skipweasel.pwp.blueyonder...es/trifold.jpg However, one, as you can see had three cotyledons and has triple leaf sets. They're exactly like ordinary sunflower leaves - only spaced 120° round the stem. Is this unusual in sunflowers? I've never seen it before. It is tricotyledonous, most flowering plants are bicotyledons and grasses are monocotyledons. It will probably have a thickened stem and you may get some odd shaped flowers. |
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