Know the difference ............?

You know it. Puzzles are easy and difficult puzzles. Guess genus of cacti in the picture, the puzzle was too easy. Know the generic name would have been perhaps a little harder. Neither of these issues but not on the agenda. Would I rather the difference between the three plants in the picture. The correct solution to the puzzle is always read to the end. I'll tell you the answer but at the beginning of the next paragraph.

All three plants are exactly the same. There is no difference in them. They come originally from one grafted plant. Still not quite the same. More than 10 years ago I got from BC Klikar barquitensis Copiapo. Then of course I knew. Luckily I had at that time knew how to read and could read the name on the tag. It was grafted, T. pasacana about. Grew quite well, holding a compact size and made offshoots. A few I've cut off and rooted. The plant at right is one of them. It grows to about 8-9 years longer separate his life. About 5 years ago left me without warning base on the original plant, and I had to quickly přeroubovat. Because I'm a fan of grafting, I had not prepared a suitable base. I had no choice but to use anything else E.jusbertii. It began to C. barquitensis rise and gain all over body. About twice increased. Eventually, I cut away most offshoot of and rooted it (it is a plant in the middle). The mother remained only jusbertu - pictured far left (no other pot could be longer), from which spring to cut back a few offshoots. The cluster of handsome pravokořeného what keeps the country, to me at all do not want to interfere. Flowers in all three pots grow without problems, just the occasional watering. Most of all I like but just the right tiny. A blooming.

HonzaM