The shop is closed just now. The shop is not open for orders yet. Everything here is real and grown in my own yard — have a look around — but I am not taking money until the last few things are in place. Ask about a plant

TBMC seal. crested growth.

Bridgesii

TBMC

Grown hereWell documented

Also written as TBM-C

The form of the Bolivian torch — flattened, brain-like growth instead of a round column.

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

Every line below is something several independent sources agree on. 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

One account says the crest appeared as a sport on a type-B plant and was grafted over and over until there were enough of it to release.

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

In the yard

We grow this one

none cut for sale right now

Family line

what the record holds

No source in this library records a cross for TBMC. 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.

The longer version

A California nursery that grows it reaches the same conclusion and is equally careful about it: many growers, it says, take the crest to be a cresting form of the monstrose type B, on the evidence that the offsets it throws come out short.

Where the name comes from

One account says the crest appeared as a sport on a type-B plant and was over and over until there were enough of it to release.

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.

Growth habit
Crested growth looks brain-like and can start at the base or at the tip. Every crest grows differently, so no two plants match.

What the sources say

"TBMC" is used for two different things — the crested plant, and a separate C — so the abbreviation on a label does not tell you which you are getting.

TBMC growing in the yard
Our own plant, in the yard. 6 pictures of it on its collection page.

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.