Composition and distribution of leaf flavonoids in Hebe and Leonohebe (Plantaginaceae) in New Zealand — 2. “Apertae”, “Occlusae”, and “Grandiflorae”

A taxonomic revision of Hebe and Leonohebe in New Zealand has involved studies of plant morphology and flavonoid chemistry. This paper is the second in a series that summarises the composition and taxonomic distribution of leaf flavonoids in the two genera. It outlines the distribution of flavonoids in species of "Apertae", "Occlusae", and "Grandiflorae" (informal infrageneric groups of Hebe). Presence/absence data are presented for 85 flavonoids from 377 samples of 42 species (as well as some samples of uncertain taxonomic placement). Flavonoid variation within and between species is illustrated using a series of ordination analyses. Most species in each of "Apertae" and "Grandiflorae" and many in "Occlusae" can be distinguished by their flavonoid profiles, generally through possession of unique combinations of compounds.