Eight kinds of cuckoo pint

Lords-and-Ladies aka cuckoo pint aka Arum maculatum is a familiar enough plant, but one that is more variable than it might seem, because....

Some plants have a yellow spadix (the club-shaped bit in the centre) and ....

... others have a purple spadix. Then there's the leaves .....

... which in some plants have dark purple spots ......

..... and in others are plain green. The frequency of leaf spotting depends on location, with purple spotted leaves being much commoner in central and southern England than in northern England. 

All combinations can occur but plants with yellow spadices and spotted leaves are rarest (around 9% according to C.T.Prime Lords and Ladies [New Naturalist special volume] 1960).

So that's two major variable characters - and there's another one. For that you need to look at the way that the base of that cowl-shaped spathe is coiled. It can be........

...... clockwise, as seen from above .....

...... or counter-clockwise, as seen from above

So, altogether there are eight possible combinations of these characters.

For more about the botany of Arum maculatum, click here and here