North America Native Plant

Spreadpetal Dendrobium

Botanical name: Dendrobium patentifiliforme

USDA symbol: DEPA18

Life cycle: perennial

Habit: forb

Native status: Native to Pacific Basin excluding Hawaii  

Spreadpetal Dendrobium: A Rare Pacific Orchid Worth Knowing About If you’ve stumbled across the name spreadpetal dendrobium while researching native plants, you’ve discovered one of the Pacific’s most elusive botanical treasures. Dendrobium patentifiliforme is a perennial orchid species that’s as rare as it is intriguing, but before you start planning ...

Spreadpetal Dendrobium: A Rare Pacific Orchid Worth Knowing About

If you’ve stumbled across the name spreadpetal dendrobium while researching native plants, you’ve discovered one of the Pacific’s most elusive botanical treasures. Dendrobium patentifiliforme is a perennial orchid species that’s as rare as it is intriguing, but before you start planning where to plant it in your garden, there are some important things you should know.

What Is Spreadpetal Dendrobium?

The spreadpetal dendrobium belongs to the vast Dendrobium genus, which includes hundreds of orchid species found throughout Asia and the Pacific. As a monocot and member of the orchid family, this isn’t your typical garden plant. Unlike the hostas or daylilies you might be familiar with, orchids have specialized growing requirements and unique characteristics that set them apart from conventional landscaping plants.

Where Does It Come From?

This native orchid calls the Pacific Basin home, specifically documented in Guam and Palau. Its extremely limited geographical distribution is one of the first clues that this isn’t a plant you’ll find at your local garden center – or probably anywhere else, for that matter.

Why You Probably Shouldn’t Try to Grow It

Here’s where we need to have a frank conversation about plant rarity and responsible gardening. The spreadpetal dendrobium’s extremely limited distribution suggests it may be quite rare in its natural habitat. Even if you could somehow source this plant (which is highly unlikely), attempting to grow such a specialized and potentially rare orchid without expert knowledge could be problematic for several reasons:

  • Orchids require very specific growing conditions that are difficult to replicate
  • Rare species should be left to conservation efforts and botanical institutions
  • Success rates for amateur orchid growing can be quite low
  • Removing or propagating rare plants from wild populations can harm already vulnerable species

Better Alternatives for Your Garden

Instead of chasing after this elusive orchid, consider focusing on native plants that are more readily available and better suited to home gardening. If you’re gardening in tropical Pacific regions, look for:

  • Locally native flowering shrubs and trees
  • Indigenous ferns and ground covers
  • Native grasses and sedges
  • Well-established native perennials that support local wildlife

Your local native plant society or botanical garden can provide excellent recommendations for plants that are both native to your area and appropriate for home cultivation.

The Bigger Picture

The spreadpetal dendrobium serves as a fascinating reminder of the incredible diversity found in Pacific island ecosystems. While we may not be able to grow this particular species in our gardens, we can support conservation efforts and choose plants that provide similar benefits to local ecosystems without putting rare species at risk.

Sometimes the most responsible approach to rare plants is simply appreciating them from afar and focusing our gardening efforts on species that are better suited to cultivation and more readily available through ethical sources.

Spreadpetal Dendrobium

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Orchidales

Family

Orchidaceae Juss. - Orchid family

Genus

Dendrobium Sw. - dendrobium

Species

Dendrobium patentifiliforme Hosok. - spreadpetal dendrobium

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