North America Native Plant

Seashore Saltbush

Botanical name: Atriplex drymarioides

USDA symbol: ATDR

Life cycle: annual

Habit: forb

Native status: Native to Alaska  

Seashore Saltbush: Alaska’s Mysterious Coastal Rarity If you’ve ever wondered about the hidden botanical treasures tucked away in Alaska’s remote coastlines, meet the seashore saltbush (Atriplex drymarioides) – a plant so rare and elusive that even seasoned botanists do double-takes when they encounter it. This little-known annual herb represents one ...

Rare plant alert!

Region: Conservation status by state

Status: S2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Seashore Saltbush: Alaska’s Mysterious Coastal Rarity

If you’ve ever wondered about the hidden botanical treasures tucked away in Alaska’s remote coastlines, meet the seashore saltbush (Atriplex drymarioides) – a plant so rare and elusive that even seasoned botanists do double-takes when they encounter it. This little-known annual herb represents one of nature’s most intriguing mysteries, existing in just a handful of locations along Alaska’s vast shoreline.

What Makes Seashore Saltbush Special?

The seashore saltbush isn’t your typical garden center find, and honestly, that’s probably for the best. This annual herb belongs to the amaranth family and shares its saltbush relatives’ knack for tolerating salty, harsh conditions. However, unlike its more common cousins, Atriplex drymarioides has chosen an extremely exclusive lifestyle, limiting itself to very specific coastal habitats in Alaska.

Where Does It Call Home?

This botanical enigma is native exclusively to Alaska, where it clings to existence in coastal areas that most plants would find utterly inhospitable. The species has been documented from only a few locations, making every sighting a noteworthy botanical event.

A Plant That’s Playing Hard to Get

Here’s where things get serious: seashore saltbush carries a Global Conservation Status of S2Q, which translates to imperiled and questionable. In plain English, this means the plant is both extremely rare and botanists aren’t entirely certain about its taxonomic classification. It’s like trying to study a ghost that might not even be a ghost.

This rarity status is crucial for several reasons:

  • The species exists in very small populations
  • Its habitat is vulnerable to environmental changes
  • There’s still uncertainty about whether it’s a distinct species or a variant of another saltbush

Should You Grow Seashore Saltbush?

The short answer is: please don’t try to. This isn’t about being exclusive or gatekeeping – it’s about conservation. With such a precarious conservation status, attempting to cultivate seashore saltbush could potentially harm wild populations if seeds or plants were collected from nature. Plus, this species likely requires very specific coastal conditions that would be nearly impossible to replicate in a typical garden setting.

Better Alternatives for Your Garden

If you’re drawn to the idea of growing saltbush species, consider these more sustainable options:

  • Four O’Clock saltbush (Atriplex micrantha) – more widely available and less conservation-sensitive
  • Orache (Atriplex hortensis) – an annual that’s actually cultivated as a food crop
  • Local native coastal plants appropriate to your region

How You Can Help

While you shouldn’t grow seashore saltbush, you can still support its conservation:

  • Support organizations working on Alaska coastal habitat preservation
  • Choose native plants for your garden that support local ecosystems
  • Spread awareness about rare plant conservation
  • If you’re ever botanizing in coastal Alaska (lucky you!), report any unusual saltbush sightings to local botanists

The Bigger Picture

Seashore saltbush reminds us that not every plant is meant for our gardens – and that’s perfectly okay. Some species serve their most important role simply by existing in their natural habitats, contributing to ecosystem diversity and serving as indicators of environmental health. By respecting these botanical rarities and focusing our gardening efforts on more common native species, we become better stewards of the natural world.

Sometimes the best way to appreciate a plant is to leave it exactly where nature intended it to be – thriving in its own mysterious, windswept corner of the world.

Seashore Saltbush

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Chenopodiaceae Vent. - Goosefoot family

Genus

Atriplex L. - saltbush

Species

Atriplex drymarioides Standl. - seashore saltbush

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