North America Native Plant

Alex’s Dock

Botanical name: Rumex ×alexidis

USDA symbol: RUAL10

Life cycle: perennial

Habit: forb

Native status: Native to Canada  

Alex’s Dock: A Rare Canadian Native Worth Knowing About If you’ve stumbled across the name Alex’s dock while researching native plants, you’ve discovered one of Canada’s more elusive botanical treasures. This perennial forb represents a fascinating piece of our northern flora, though don’t expect to find it at your local ...

Alex’s Dock: A Rare Canadian Native Worth Knowing About

If you’ve stumbled across the name Alex’s dock while researching native plants, you’ve discovered one of Canada’s more elusive botanical treasures. This perennial forb represents a fascinating piece of our northern flora, though don’t expect to find it at your local garden center anytime soon!

What Exactly Is Alex’s Dock?

Alex’s dock (Rumex ×alexidis) is a native Canadian plant species that belongs to the dock family. The × in its scientific name tells us something important – this is actually a hybrid species, meaning it’s the result of two different dock species crossing in nature. As a perennial forb, it’s an herbaceous plant that comes back year after year, lacking the woody stems of shrubs or trees but maintaining a persistent root system underground.

Like other members of the dock family, Alex’s dock is a vascular plant without significant woody tissue above ground. Its perennating buds – the parts that survive winter to regrow each spring – are located at or below the soil surface, helping it weather harsh Canadian winters.

Where Does Alex’s Dock Call Home?

This rare native has a very limited geographical range, currently documented only in Saskatchewan. Its restricted distribution makes it quite special – and quite uncommon in the wild.

Should You Grow Alex’s Dock?

Here’s where things get tricky. While Alex’s dock is undoubtedly a legitimate native Canadian species, its extreme rarity means it’s not really a practical choice for most home gardeners. The lack of available information about its growing requirements, appearance, and cultivation needs suggests this is more of a botanical curiosity than a garden-ready plant.

The Rarity Factor

Given the limited documentation and extremely restricted range of Alex’s dock, it’s likely quite rare in the wild. If you’re interested in this plant, it would be crucial to source it only through reputable native plant specialists who can guarantee the material was obtained responsibly and legally. Never collect rare plants from wild populations.

Better Native Alternatives

If you’re drawn to the idea of growing native dock species, consider these more readily available alternatives:

  • Wild dock (Rumex crispus) – though this one can be quite aggressive
  • Water dock (Rumex orbiculatus) – great for wetland gardens
  • Other native Saskatchewan forbs that are easier to source and grow

The Bottom Line

Alex’s dock represents the fascinating diversity of Canada’s native flora, but its rarity and limited availability make it more of an botanical curiosity than a practical garden plant. If you’re passionate about growing truly local natives and can source this plant responsibly, it could be an interesting addition to a specialized native plant collection. However, most gardeners would be better served by choosing more readily available native species that can provide similar ecological benefits without the sourcing challenges.

Remember, the best native plant for your garden is one that’s both appropriate for your local ecosystem and available through responsible sources. Sometimes the rarest isn’t necessarily the best choice for creating a thriving native landscape!

Alex’s Dock

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

Polygonales

Family

Polygonaceae Juss. - Buckwheat family

Genus

Rumex L. - dock

Species

Rumex ×alexidis B. Boivin [maritimus × stenophyllus] - Alex's dock

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