It has pinnate leaves and racemes of lilac pink flowers, which are slightly fragrant.
Green stems are interconnected by sensitive petioles and bear pinnate leaves.
The microsporophyll of Lepidopteris has been reconstructed as a pinnate axis with short branches bearing clusters of small elongate pollen sacs fused at the base.
Arrangement of septa in earliest stages pinnate in all quadrants.
Immatures have a weakly developed taproot, and have pinnate compound leaves with two or three leaflets.
In 1794, Moench named A. tuberosa and described it as having tuberous roots, unevenly pinnate leaflets, and purple flowers in lateral racemes.
The colonies are erect, typically delicate; reticulate (net-like) or pinnate (fern-like).
All of these foliage forms are planate pinnate fronds, frequently with open venation.
Trabs rise steeply or essentially normally to upper surface from ill-defined surface of pinnation that appears to be near gastral margin.
The plant has 45 cm high clustered leafy stems with pinnately arranged pale green lance-shaped leaflets obliquely banded with pure white.