Astrolepis sinuata: Wavy Scaly Cloakfern

Astrolepis sinuata, known as Wavy Scaly Cloakfern, Star-scaled Fern, or Wavy Cloak Fern, is a distinctive, semi-evergreen fern native to the Americas from the southern US to South America. It forms a clump of erect, pinnate fronds with thick, leathery, blue-green pinnae that have wavy (sinuate) margins. The undersides of the pinnae are densely covered in star-shaped (stellate) scales, giving a silvery or rusty appearance. The stipe and rachis are dark and scaly.

Plant Profile

This is a xeric fern adapted to dry, rocky, often limestone habitats. It requires full sun to part shade, excellent drainage, and alkaline, gritty soil. Water very sparingly; it is extremely drought-tolerant. The starry scales on the leaf undersides are a key adaptation to reflect light and reduce water loss. Ideal for rock gardens, crevices, and dry walls in warm climates. A fascinating textural plant.