Adiantum capillus-veneris fronds

The tufted fronds of Adiantum capillus-veneris comprise small, fan-shaped pinnae with wedge-shaped bases and irregularly lobed tips. The pinnae are two- or three-times divided.

Water is repelled by the pinnae. The generic name, adiantum, is derived from the Greek word adiantos meaning unwetted, referring to this water repellent feature. The arching rachises are wiry and black.

The sori or spores grow along the margins on lower surfaces of some pinnae, appearing in summer (Shearing and Van Heerden, 2008; iNaturalist; http://www.missouribotanicalgarden.org).