Flora of New Zealand Series

Infl. of whorled fls, us. in bracted spikes. Calyx 10-15-nerved, teeth nearly equal; corolla-tube short, lobes 4, nearly equal. Stamens 4, ± equal, mostly exserted. Nutlets ovoid, smooth. Perennial rhizomatous or stoloniferous herbs, with us. 4-angled stems and branches and fragrant opp. or whorled simple lvs. Some 30 spp., mostly of temperate regions, the N.Z. sp. endemic.