Helleborus argutifolius Viv.

Evergreen pale green plant to 1 m or so tall, sprawling and woody. Basal leaves absent; stem leaves with 3 spiny-toothed leaflets. Flowers cup-shaped to 4 cm wide, green; winter to early spring. Carpels 3-5, fused at the base. [h. corsicus Willd., h. lividus Aiton subsp. corsicus (Briq.) Yeo]

Corsica and Sardinia

A rare species in gardens and probably best known through its smaller highly variable hybrid, H. ×”sternii Turrill (first recorded in the 1940s in Sir Frederick Stern's garden at Highdown, Sussex, UK) which is a cross with H. lividus and intermediate in characters.

Leaves with 3 leaflets, pale green, thick and brittle with coarse spiny-toothed margins.

Source: Spencer, R. (1997). Ranunculaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.