White buttercup (Turnera subulata) anthotype by Regina Cury

”He became flowers” by Regina Cury, Rio de Janeiro, Brazil
Parts used: Leaves
Amount: 50 grams
Extracted by: Food processor
Solvent: Isopropyl alcohol
Application: Brushing

Layers: 3
Substrate: Canson Drawing Paper 200 gms
Created with: A small branch of a plant native to the South American coast, known as Flor do Guarujá, was placed inside a small mesh bag, using it as a kind of plant pot. The opening was slightly gathered, a few leaves were arranged around it, and everything was sandwiched between a wooden base and a sheet of glass, secured with paper clips.
Exposure: 3 hours in September, Spring 2026
Temperature: 25-32° Celsius or 77-90° Fahrenheit
Humidity: 75%-85%
Contrast: ✿✿ (Medium)
Challenges or observations: I initially thought macerating the leaves and flowers in isopropyl alcohol would be sufficient. It worked for the flowers, although they did not produce enough contrast. The leaves required a food processor, resulting in a more intense emulsion that produced good contrast after only a short exposure to direct sunlight.
Additional information: Turnera subulata is a non-conventional food plant (PANC), meaning it is edible, although its leaves are not. In Brazil, it is also known as Flor do Guarujá or Onze Horas da Praia.
Instagram: @reginacuryart
Website: reginacuryart.com.br