North America Native Plant

Palaihinahina

Botanical name: Hymenophyllum lanceolatum

USDA symbol: HYLA2

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Synonyms: Sphaerocionium lanceolatum (Hook. & Arn.) Copeland (SPLA12)   

Palaihinahina: Hawaii’s Delicate Native Filmy Fern Meet palaihinahina (Hymenophyllum lanceolatum), one of Hawaii’s most ethereal native ferns. Also known as palai hinahina, this delicate beauty belongs to the fascinating group called filmy ferns – and trust me, once you see why they earned that name, you’ll be enchanted by their ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Palaihinahina: Hawaii’s Delicate Native Filmy Fern

Meet palaihinahina (Hymenophyllum lanceolatum), one of Hawaii’s most ethereal native ferns. Also known as palai hinahina, this delicate beauty belongs to the fascinating group called filmy ferns – and trust me, once you see why they earned that name, you’ll be enchanted by their gossamer-like appearance.

What Makes Palaihinahina Special

Palaihinahina is a perennial fern that’s as delicate as it is beautiful. Unlike your typical robust garden ferns, this little wonder has translucent, paper-thin fronds that seem to glow when backlit. It’s what botanists call a forb – essentially a non-woody plant that lacks significant thickening growth and keeps its growing points at or below ground level.

This fern is endemic to Hawaii, meaning you won’t find it growing wild anywhere else on Earth. It calls the Hawaiian Islands home, thriving in the misty, humid forests that characterize the region’s unique ecosystems.

A Conservation Concern

Important note for gardeners: Palaihinahina has a Global Conservation Status of S3, which means it’s considered vulnerable. With typically only 21 to 100 occurrences or between 3,000 and 10,000 individuals remaining, this fern is quite rare and faces potential threats to its survival.

If you’re considering adding this native beauty to your garden, please only source it from reputable native plant nurseries that propagate it responsibly. Never collect it from the wild – every plant in its natural habitat is crucial for the species’ survival.

Garden Role and Aesthetic Appeal

In the right conditions, palaihinahina creates an almost magical atmosphere in native Hawaiian gardens. Its delicate, lace-like fronds add incredible texture and visual interest to shaded areas. Think of it as nature’s own gossamer curtain, perfect for creating those mysterious, forest-floor vibes that make you feel like you’ve stepped into an enchanted woodland.

This fern works beautifully as:

  • Ground cover in humid, shaded native plant gardens
  • Accent planting in protected microclimates
  • Companion to other native Hawaiian understory plants
  • Living art in specialized shade gardens

Growing Conditions and Care

Here’s where things get a bit tricky – palaihinahina isn’t your average, easy-going garden fern. This delicate native has very specific needs that mirror its natural rainforest habitat:

  • Climate: USDA zones 10-12 (tropical to subtropical)
  • Light: Filtered, dappled shade – think deep forest conditions
  • Humidity: High humidity is absolutely essential
  • Moisture: Consistently moist (but not waterlogged) conditions
  • Temperature: Cool, stable temperatures without extreme fluctuations

The Reality Check

Let’s be honest – palaihinahina is not a beginner’s plant. It requires very specific environmental conditions that can be challenging to replicate outside its natural habitat. If you’re new to native Hawaiian gardening or don’t have the right microclimate, you might want to start with more forgiving native species first.

However, if you have the right conditions and the patience to work with this delicate beauty, palaihinahina can be an incredibly rewarding addition to your native plant collection.

Supporting Native Hawaiian Ecosystems

By growing palaihinahina responsibly, you’re not just adding beauty to your garden – you’re participating in conservation efforts for Hawaii’s unique native flora. While this fern doesn’t provide direct benefits to pollinators (it reproduces through spores, not flowers), it plays an important role in native forest ecosystems and helps preserve Hawaii’s botanical heritage.

Remember, every native plant in your garden is a small step toward supporting local biodiversity and maintaining the ecological connections that make Hawaii’s natural world so special. Just make sure you’re doing it responsibly by sourcing your plants ethically and providing them with the specialized care they need to thrive.

Palaihinahina

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Hymenophyllaceae Mart. - Filmy Fern family

Genus

Hymenophyllum Sm. - filmy fern

Species

Hymenophyllum lanceolatum Hook. & Arn. - palaihinahina

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA