[1] According to Algaebase as described by Kraft (1986), the thallus height ranges from less than 5 mm to above 7 cm, non-calcified and the prostrate rhizome or digitate processes within the substratum gives rise to the blade and stalk system.

The fronds are monostromatic or polystromatic having irregularly lanceolate or regularly to excentrically peltate, with siphons dichotomously branched and generally equally constricted above dichotomy.

The constituent siphons cohere at scattered and isolated points by circular rings of wall thickening at tips of lateral papillae or foreshortened blade-siphon dichotomies.

The genus were observed to grow commonly  in low, intertidal to shallow subtidal rocky habitats on wave-exposed temperate area.

Unlike other green seaweeds (Ulva and Caulerpa), the biological activities of the genus   Rhipiliopsis are still unexplored.