Lepidium oleraceum is a herb in the family Brassicaceae, endemic to New Zealand. Its English common name is Cook's scurvy grass; Māori names include nau, ngau, naunau and heketara.

The Bounty Islands are a small group of uninhabited granite islets and numerous rocks, with a combined area of circa 50 ha in the South Pacific Ocean. Territorially part of New Zealand, they lie about 670 km (420 mi) east-south-east of New Zealand's South Island, 530 km (330 mi) south-west of the Chatham Islands, and 215 km (134 mi) north of the Antipodes Islands. The group is a World Heritage Site.