Pinguicula gypsicola is one of the most distinctive Mexican butterworts. Its long, slender active leaves give it a very different outline from a broad-leaved rosette. The compact plant that appears during its resting phase can seem equally unfamiliar. Both appearances belong in a proper account of the species.
At a glance
- Accepted name: Pinguicula gypsicola Brandegee.
- Family: Lentibulariaceae.
- Native range: San Luis Potosí, Mexico.
- Habit: a rock-growing perennial with contrasting seasonal leaf forms.
- Care priority: distinguish active growth from the dry resting phase.
Kew accepts the species and records its first publication in University of California Publications in Botany 4:190, in 1911. Its range and lithophytic habit follow that treatment. Plants of the World Online.
A plant associated with gypsum
Oliver Gluch’s 2009 field report documents plants on eroded gypsum and exposed crystalline surfaces in San Luis Potosí. Some grew beside Selaginella; others occupied vertical rock. Flowers and new active leaves were appearing despite visibly dry conditions. Gluch questioned where the moisture was coming from, rather than claiming to have measured its source. Field observations.
That distinction matters. A photograph of a dry hillside shows conditions at one visit. It cannot, by itself, establish the water supply inside a crevice or the moisture available over the preceding weeks. For cultivation, use the habitat to ask better questions about the root environment; do not convert one landscape photograph into a year-round watering prescription.
Recognising the seasonal forms
The published description reproduced by A World of Pinguicula contrasts many small resting leaves with roughly 10–30 long active leaves. Typical active-leaf lengths in that account are 40–70 mm, with a wider recorded range. The violet-purple flower has narrow lobes and a long spur, commonly described there as 20–26 mm. The small-leaved phase is a succulent rosette rather than a cold-temperate hibernaculum. Morphological account.
For your own plant, photograph the whole rosette from above and from the side. Include a scale beside one mature leaf and take a separate side view of the flower. A long leaf alone is not enough to identify the species: keep the flower, both seasonal forms and the plant’s supplied name together in the record.
Growing through active and resting phases
Eric Partrat’s cultivation account uses a mineral medium, air movement and rainwater, allowing some drying between active-season waterings. As non-carnivorous leaves develop, he lets the pot dry completely; watering resumes progressively when active leaves return. His dry-rest method operates in a humid French greenhouse. That surrounding humidity is part of the method, not an optional detail to omit when translating it to a dry room. Cultivation observations.
The ICPS explains more generally that medium, humidity and watering interact in Mexican Pinguicula cultivation. A mixture suitable for a humid greenhouse may behave differently on an indoor windowsill. Its guide also connects seasonal leaf changes with changing light periods. ICPS cultivation context.
For an established plant, begin with a draining pot and a documented species-appropriate medium. Mark the date when the newest leaves start changing form. During the transition, inspect moisture in the pot rather than assuming that an empty tray means a dry root zone. Keep that pot’s seasonal routine separate from plants that continue producing broad carnivorous foliage.
In Australia, follow the observed sequence of leaves. Northern Hemisphere month names are descriptions of another grower’s season; they are not an instruction to impose the same schedule in November or June. A plant grown under lamps also needs its lighting history considered when interpreting a delayed transition.
Propagation without losing the parent record
The species account reports propagation from non-carnivorous leaves. General ICPS leaf-pulling guidance stresses gentle handling, preservation of usable leaf tissue and avoiding both decay and excessive drying. It also warns that enclosed propagation containers must be protected from direct sun. Species propagation notes; ICPS leaf-pulling guide.
Label the propagation container before taking material. Record which parent supplied it, the leaf phase and the date. A vegetatively propagated plant can preserve a documented accession; an unlabelled pulling cannot recover a lost locality history.
Locality names and the limits of a profile
Gluch’s report discusses the horticultural locality label “Santa Gertrudis”. Preserve such wording when it accompanies a documented plant, but do not assign it from resemblance or turn it into a formally recognised botanical variety. Locality history.
A useful collection record contains the original label, source, photographs and a complete seasonal cycle. This profile does not authenticate individual nursery accessions or promise identical performance from every clone. Its purpose is to make the species’ changing appearance and habitat understandable enough to guide careful observation.
Part of the Nano Nursery Pinguicula Encyclopedia. Sources checked September 2026. Cultivation guidance concerns established plants; tissue-culture material needs a separate acclimatisation process.
