Which genus has more species, Astilbe or Pittosporum ?
Pittosporum Pittosporum ( or ) is a genus of about 200 species of flowering plants in the family Pittosporaceae. The genus is probably Gondwanan in origin; its present range extends from Australasia, Oceania, eastern Asia and some parts of Africa. "Citriobatus" is usually included here, but might be a distinct (though closely related) genus. They are commonly known as pittosporums or, more ambiguously, "cheesewoods".
Pittosporum tenuifolium Pittosporum tenuifolium is a small evergreen tree, up to 10 m , native to New Zealand, commonly known as kōhūhū and black matipo, and by other Māori names "kohukohu" and "tawhiwhi". It is sometimes grown under the cultivar name 'Nigricans', so called because of its black stems. In horticulture it is valued for its coloured foliage (cultivated variations include purple, "silver" and variegated leaves), and for its tolerance of some horticulturally difficult growing conditions, including dry soils and shade (although in northwest Europe, cold and exposed situations do not suit it). The flowers generally go unnoticed because of their colour, a very dark reddish-purple, and are scented only at night. It is found growing wild in coastal and lower mountain forest areas up to an altitude of 900m.