Dyckia yellow glow or golden glow
This is all the very same plant. The stronger the light they get the better looking they are.
The amount of yellow and its richness depends on the amount  and the quality of light the plant gets.
Migger light leads to a drab green graceless looking plant.
This is undoubtely one of the prettiest Dyckias of all.
Man bettering on plants and animals turns not only our living better but also possible.
We would be starving by the billions without bettered plants and bettered animals on which we rely on for living.
Beauty needs the Light to be revealed, as this plant here needs light to get better.
Nothing is ugglier than starvation.