A vigorous form, not looking at its best here. The rich yellow flowers are tipped with reddish and purple. I have grown a couple of colour
forms under this name. One of them I am convinced was 'Tricolor', so this one may well be the real thing, although it has something of the 'Pearsonii'
The names don't really matter all that much, they are all wonderful, and if you grow them from seed you can have any number of beautiful things.
Further research suggests that the name "nelsonii" was originally published in the Gardeners Chronicle
in 1882 and has since been reduced to a synonym of L.aloides var aloides.