Pīngao
Botanical name: Ficinia spiralis
Synonyms: Isolepis spiralis; Desmoschoenus spiralis; Anthophyllum urvillei; Scirpus frondosus; Scirpus spiralis
Common name(s): Pīngao, Pīkao, Golden Sand Sedge
About:
Pīngao is New Zealand’s iconic native sand-binding sedge, instantly recognised by its striking golden-orange foliage. Once widespread around the country’s coastline, it is now patchily distributed due to competition from introduced marram grass and habitat loss. Its extensive creeping rhizomes trap wind-blown sand and build dunes, making it one of New Zealand’s most important coastal restoration species.
Natural habitat:
Found on active coastal sand dunes, particularly the foredunes, dune faces, rear dunes and exposed sand hills where fresh wind-blown sand is continually deposited.
Growing environment:
Sun, Coastal, Salt, Wind, Drought & Free draining tolerant.
Endemic distribution:
Endemic to New Zealand.
Occurs naturally throughout the North, South, Stewart and Chatham Islands.
Height:
30 cm–1.2 m
Width:
Spreads extensively by creeping rhizomes
Flowering:
Spring – Early Summer
Produces distinctive spiral clusters of dark brown flower spikelets amongst the upper stems.
Fruiting:
Late Summer
Develops smooth, glossy dark brown nuts that fall close to the parent plant or are buried by shifting sand.
Uses:
• Coastal restoration
• Sand dune stabilisation
• Erosion control
• Habitat restoration
• Cultural weaving
• Native landscaping
• Coastal revegetation
Appearance:
Growth habit:
A robust, rhizomatous perennial forming spreading colonies through thick underground stems that trap and stabilise moving sand.
Leaves:
Long, narrow, stiff leaves emerge bright green before turning brilliant golden yellow to rich orange as they mature or dry. The harsh, leathery foliage gives the plant its unmistakable appearance.
Flowers:
Dark reddish-brown spikelets are arranged in tightly packed spiral clusters along the upper flowering stems, subtended by long leaf-like bracts.
Fruit:
Produces smooth, shiny dark brown nuts which mature during late summer and are dispersed locally within the dune system.
Ecology:
Pīngao is one of New Zealand’s most important dune-building plants. Its rhizomes trap wind-blown sand, helping create and stabilise active dune systems while providing habitat for native wildlife including katipō spiders, New Zealand dotterels, pipits and other specialised coastal species.
Associated habitats:
Active foredunes, rear dunes, coastal sand hills, dune slacks and exposed sandy coastlines.
How to grow:
Grow in full sun on free-draining sandy soils. It performs best where fresh sand is regularly deposited and is highly tolerant of salt spray, drought and strong coastal winds. Plants dislike root disturbance, so young plants are best grown in root trainers before planting into their permanent position.
Propagation:
Readily grown from fresh seed or stem cuttings. Rhizome divisions also establish well when carefully handled. Best planted during cooler months before summer drought.
Cultural use:
Pīngao is one of New Zealand’s most culturally significant weaving plants. The brilliant golden leaves are traditionally used by Māori for weaving kete, pōtae, whāriki and decorative tukutuku panels. The young growing shoots were also eaten, and the plant features prominently in Māori pūrākau, where it is known as Ngā Tukemata o Tāne (“The Eyebrows of Tāne”).
Garden value:
Pīngao is an exceptional feature plant for coastal gardens and restoration projects, valued for its brilliant golden foliage, year-round architectural form and vital ecological role in stabilising dunes. It creates striking contrast with spinifex, flax and other coastal natives while helping restore one of New Zealand’s most threatened ecosystems.