Tall Tonguefern: A Rare Hawaiian Native Worth Protecting
If you’re fascinated by rare native plants, the tall tonguefern (Elaphoglossum alatum var. crassicaule) might just capture your imagination. This lesser-known Hawaiian endemic fern represents the incredible biodiversity that makes the Hawaiian Islands so special from a botanical perspective.
What Is the Tall Tonguefern?
The tall tonguefern belongs to the tongue fern family, scientifically known as Elaphoglossum alatum var. crassicaule. This perennial fern is classified as a forb – essentially a vascular plant without significant woody tissue above ground. While that might sound technical, think of it as a soft-stemmed plant that comes back year after year, unlike the woody stems you’d find on trees and shrubs.
This particular variety was once known by the synonym Elaphoglossum crassicaule Copeland, which you might encounter in older botanical references.
Where Does It Grow?
The tall tonguefern is exclusively native to Hawaii, making it a true island endemic. You won’t find this plant growing naturally anywhere else in the world – it’s as Hawaiian as it gets!
- Species observed
- No observations
Within Hawaii, this fern typically inhabits upland areas rather than wetlands, though it can occasionally be found in wetter conditions. Its classification as Facultative Upland means it’s most comfortable in non-wetland environments but flexible enough to handle some moisture.
A Plant of Conservation Concern
Here’s where things get serious: the tall tonguefern has a Global Conservation Status of S3T2T3. While the exact definition of this status isn’t clearly defined in standard references, any plant with this type of conservation ranking deserves our attention and respect.
If you’re considering adding this fern to your garden, please ensure you source it responsibly. This means:
- Only purchase from reputable native plant nurseries that propagate their stock
- Never collect plants from the wild
- Support conservation efforts for Hawaiian endemic species
- Consider this plant only if you’re committed to proper care
Is This Fern Right for Your Garden?
Given its rare status and Hawaiian origin, the tall tonguefern isn’t your typical garden center find. This plant is more suited for:
- Dedicated native plant enthusiasts in Hawaii
- Conservation-minded gardeners
- Educational gardens focusing on Hawaiian flora
- Specialized collections of rare ferns
Unfortunately, specific growing requirements, care instructions, and garden design applications for this particular variety aren’t well-documented in standard horticultural sources – a testament to just how rare and specialized this plant is.
Supporting Hawaiian Native Plants
Whether or not you ever encounter a tall tonguefern, its existence reminds us of the incredible plant diversity that calls Hawaii home. Many of these endemic species face challenges from habitat loss, invasive plants, and climate change.
If you live in Hawaii and want to support native biodiversity, consider connecting with local native plant societies, botanical gardens, or conservation organizations. They can guide you toward more readily available Hawaiian natives that might be perfect for your garden while helping preserve rare species like the tall tonguefern for future generations.
Remember, every rare plant tells a story of evolution, adaptation, and the delicate balance of island ecosystems. The tall tonguefern may be small and unassuming, but it’s a living piece of Hawaiian natural heritage worth protecting.