A Yearling Cactus of a Different Type
This is another spineless cactus yearling, but one showing a quite different manner of growth from the one in the preceding picture. Here the slabs are put out symmetrically from the edge of the parent slab, and it may be predicted that the plant will grow into a compact tree-like form, and need little attention.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 8 Chapter 6