四叶澳洲坚果 si ye ao zhou jian guo

Trees or shrubs, 3-18 m tall. Leaves in whorls of (3-)4(-5); leaf subsessile or with petiole to 4 mm; leaf blade oblong-oblanceolate, leathery, base truncate to ± cordate, margin regularly spiny serrate; apex acute to shortly acuminate. Inflorescences axillary, simple, 5.5-38 cm, densely brownish yellow tomentose; bracts of flower pairs subulate to linear, 0.2-1.4 mm. Pedicel 2-3 mm. Perianth yellowish or pink, 5.5-15 mm, tomentose. Ovary and base of style brownish yellow pubescent. Fruit globose, 1.5-5 cm in diam., apex apiculate. Seed usually 1, testa bony, wrinkled or with shallow depressions. Fl. Mar-Apr, fr. Nov-Dec.

Cultivated. Guangdong (Guangzhou) [native to Australia; cultivated elsewhere as an ornamental or fruit tree].

The seeds are edible