- Collector
- Phil Mann (seed source)
- First described
- 2024
- Type
- single clone from named seed batch
- Cultivar
- 'Denbarker 1'
Origin
A Cephalotus follicularis selection from the late Phil Mann's seed batches. The seeds were sent to the US, grown out, and three selections were retained from the survivors: Denbarker 1, 2, and 3. D1 is the first of these three.
The "Denbarker" naming aligns with the Denbarker locality in the Phil Mann program, but the source thread does not establish whether D1's wild parent was specifically a Denbarker plant or whether the name applies to the entire seed batch that produced it.
Standout traits
- Color: Lids darken readily, even at trap opening under cool spring conditions. Mike's metric for clone quality (consistent ease of color) — D1 passes.
- Size: Vigorous; reportedly a giant at full maturity (Mike has not yet personally confirmed this — his 2024 traps were "large but not giant").
- Shape: Two phenotypes — normal-sized traps are slightly longer than typical clones; very large traps stretch into the same shoe-shape morphology Mike documents in PM1.
Relationship to PM1
Both D1 and PM1 trace to Phil Mann seed batches. The shared shoe-shape phenotype at large size suggests possible genetic kinship within Phil Mann's program, but they are different selected individuals.
Cultivation notes
Two divisions of the same clone documented in the original post — both behave consistently. Mike expects the giant phenotype to emerge once the tuber matures further (post-2024).
Standout traits
- Readily produces dark black lids under ideal conditions — colors up easier than most other dark clones.
- Vigorous; can attain exceptional sizes once tuber is mature and growth momentum is good.
- Reported (but unconfirmed in Mike's collection) to be a giant at full vegetative maturity.
- Two trap-shape phenotypes: normal-sized traps are slightly longer than typical; very large traps stretch into a 'shoe-shape' similar to PM1.
- Lid coloration intensifies in spring — dark even at trap opening when cool nights + bright days coincide.
- Compatible with sister clones Denbarker 2 and Denbarker 3 in identification — different individuals from the same selection batch.
Cultivation
Lid coloration is robust under natural lighting, particularly combining bright spring light with still-cool nights. Mike's mother plant produced "large but not giant" traps in 2024; he's hoping for the giant phenotype to emerge as the tuber matures into 2025 and beyond. Two divisions of the same clone documented in the source thread show consistent expression.
Photos (19)
Naming
"Denbarker 1" (D1) — selection #1 from the Phil-Mann-derived seed batch grown out in the US. D2 and D3 are the sister selections from the same batch.