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Tiburon seal. Plain ring: nothing here sets a rib count, a spine length or a growth form the ring can mark.

Bridgesii

Tiburon

Partially documented

A fat named for the Spanish word for shark, with spines to about ten centimetres.Reported, but not confirmed.

BridgesiiNamed clone: One original plant and every cutting taken from it, given a name by a grower.

Of the 4 things this page says, 2 name who reports them and 2 are marked as something we cannot confirm. Where a line is not settled, it says so underneath.

Added 23 Aug 2026

At a glance

Species

Not recorded

No source named a species for this one.

Filed under Bridgesii

Parents

Not recorded

No source names a mother or a father for this one.

Origin

Named for the Spanish word for shark.

no source says whether it is seed-grown or a cutting line

In the yard

Family line

what the record holds

No source in this library records a cross for Tiburon. Nobody names a mother or a father for it, and no other entry here names it as a parent.

That is the record, not an oversight: of the 749 names in this library, 693 have no recorded relation either. Most named clones were selected, cut and passed along without anyone writing down what they came out of. A parent goes in here when a source states it and never because a name looks like one — a wrong pedigree would travel further than a blank one, because pedigrees get copied.

If you know where it came from, tell us — a person reads everything before it appears.

Where the name comes from

Named for the Spanish word for shark.Too little stands behind this for us to confirm it.

Character

A bar is drawn only where one of the lines below states it — never from the species, never from a photograph.

  • Not documented yet.

  • Not documented yet.

  • Not documented yet.

Spines
Up to about 10 cm.One source states this, and our house botanist has checked it. The figure sits comfortably within the range this genus shows; nothing about it is implausible.
Growth habit
Fat.One source states this, and our house botanist has checked it. A thick-stemmed form is entirely ordinary in this genus; the description is plausible as stated.

What the sources say

No source we have found argues about this name — nobody has written that it is confused with another plant, or that two growers mean different things by it. That is worth knowing in itself.
Drawing of a bridgesii-type column: slim, with few ribs, areoles set widely apart and long needle spines.
A Bridgesii column, drawn. We don't grow this one, and we will not borrow anybody else's photograph of it.

Filed under the same family, Bridgesii. The better-documented ones come first.

Keep exploring

Cultivar histories in this hobby are passed between growers; where sources disagree we say so rather than pick a side.