Goniophlebium subauriculatum ‘Knightii’, also known as the Lacy Pine Fern or Helecho Cortina, is a rare tropical fern with gracefully arching fronds that can grow up to 2.5 meters (8 feet) in length. The finely toothed edges give the fronds a lacy, curtain-like appearance—making this plant a true eye-catcher in a greenhouse or indoor setting.
This species originates from Brazil and naturally grows as an epiphyte in warm, humid environments.

Characteristics & Care
  
Appearance: Long, arching fronds with toothed edges and a soft, velvety texture
  
Size: Under optimal conditions, fronds can reach up to 2.5 meters (8 feet) in length
  
Light: Partial shade or filtered light; avoid direct sun, especially during the hottest part of the day
  
Water: Keep the soil evenly moist, but avoid waterlogging; regular misting is recommended
  
Soil: Lightly acidic, humus-rich soil that retains moisture while remaining airy—such as a mix with orchid bark
  
Temperature: Not frost-hardy; keep above 15 °C (59 °F) and avoid drafts or sudden temperature changes
  
Repotting: Best done in spring when the plant starts active growth
Summary
  
Common name: Lacy Pine Fern
  
Origin: Brazil
  
Light & environment: Partial shade, warm and humid location
  
Special feature: Rare tropical epiphyte with impressively long fronds
  
Hardiness: Not frost-resistant; suitable only for indoor or heated greenhouse cultivation