Cross section variations
At Left are three tips with thin, water starved ribs. These are only
2" diameter compared to the more common 3-4" laying next to them.
Old tall plants are even thicker in diameter than 4" near the
San Pedro may have 5 lobes, or star points, but may also have 6. I
have some with 7 points and others with 8. The most lobes I have
A section will spontaneous change to more lobes if it wants to. I
have seen a 6 pointed section suddenly mutate to 7 star points as it
Perhaps these extra star points are awarded as the San Pedro
graduates from one spiritual level to another. Who can say?
Typical fresh cut
cross section of a 7-pointed star. This should be allowed to
dry for a week or two before planting to prevent rotting of the part in
contact with wet earth.
This is a nominal size piece. Some older sections are larger and there
are smaller ones. They will dwarf when budding under stress from low
water. I have seen specimens only an inch in diameter that grew from
discarded logs which were not watered.