Drosera sessilifolia forms a small, often yellow-green rosette with red trapping tentacles and delicate pink flowers. Its resemblance to D. burmanni is real, but a South American identity should not be assigned from leaf colour alone. This species is best understood through its floral structure, seasonal wetland habitats and the history attached to cultivated material.
Name and botanical identity
Kew accepts Drosera sessilifolia A.St.-Hil., first published in 1826. Its account places the species in tropical South America and includes Colombian records from the Orinoquia region. That regional record is one part of a wider distribution, not a complete description of every habitat occupied by the species. Kew account.
A 2025 study of the carnivorous flora of Ceará describes spoon-shaped leaves, pink petals and five undivided styles. The five-part female floral structure helps separate it from the other Brazilian sundews treated in the authors' comparison, which have three divided styles. The study places sessilifolia with burmanni in section Thelocalyx. Ceará taxonomic treatment.
For a collection record, photograph the flower centre as well as the rosette. Leaf shape, flower stalk and a reliable source are complementary evidence. One attractive overhead image cannot resolve every confusing cultivated plant.
Habitats across tropical South America
The Ceará study records plants in sandy ground associated with wet areas in the coastal vegetation complex. It also discusses habitat loss, urban development and pollution. A broadly distributed species can still lose suitable habitat locally; a continental range map does not show the condition of each small wet patch.
Mota's flora of the Serra dos Carajás records the species as the only member of Droseraceae then documented from that area's canga habitats, with a locally restricted occurrence despite its wider South American range. Such regional floras are valuable because they anchor a broad distribution to identified specimens and a defined landscape. Carajás flora.
These habitat records do not supply a tested potting recipe. They show where the plant has been documented, while cultivation accounts answer the separate question of how propagated material has performed away from those sites.
Sorting out cultivated plants
The ICPS acknowledges historical misidentification in seed distributed as D. sessilifolia, including possible burmannii or hybrid material. Its guide states that corrected seed was available from 2009. That history makes the source and date of an accession useful, but it does not automatically validate every later plant sold under the name. ICPS identification and cultivation notes.
Keep uncertain material explicitly uncertain. Do not replace an old label with a confident species determination merely because a flower is pink: pink-flowered burmanni exists too. If stronger evidence becomes available, retain the old determination in the record so the change remains understandable.
Cultivation and propagation
The ICPS gives approximately 20–25°C as a useful germination range for sessilifolia. Its account describes an annual cycle in seasonal habitats but notes that cultivated plants can persist longer under suitable conditions. Seed production should therefore be planned as part of growing the plant, rather than treated as an unwanted interruption to a permanent rosette.
A grower's account at Bogman Plantenstein describes bright conditions, low-mineral water, a peat-based medium and feeding, with germination sometimes delayed for months. The author identifies his material as originating from ICPS seed around 2022. This is a traceable cultivation report for that stock, not a controlled trial of all populations. Grower's accession and propagation notes.
For your own seed lots, record the parent accession, harvest date and actual germination interval. Keep labelled pots long enough to distinguish delayed emergence from failure. A healthy succession of generations, backed by clear identity records, is a better measure of success than expecting one tiny rosette to remain unchanged for years.
Nano Nursery Drosera Encyclopedia — species profile. Related core chapters: 12, 13 and 29. Reviewed 23 September 2026. Cultivation guidance concerns established plants; recently deflasked plants need separate acclimatisation.
