North America Native Plant

Arizona Rush

Botanical name: Juncus interior var. arizonicus

USDA symbol: JUINA

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Juncus arizonicus Wiegand (JUAR6)   

Arizona Rush: A Specialized Native Wetland Plant for Desert Gardens Meet Arizona rush (Juncus interior var. arizonicus), a quietly impressive native plant that’s perfectly at home in the desert Southwest. While it might not win any flashy flower contests, this unassuming perennial grass-like plant has earned its place in the ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3T4Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is 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. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

Arizona Rush: A Specialized Native Wetland Plant for Desert Gardens

Meet Arizona rush (Juncus interior var. arizonicus), a quietly impressive native plant that’s perfectly at home in the desert Southwest. While it might not win any flashy flower contests, this unassuming perennial grass-like plant has earned its place in the hearts of native plant enthusiasts who appreciate subtlety and ecological function over showy blooms.

What Exactly Is Arizona Rush?

Arizona rush belongs to the rush family (Juncaceae), making it a close cousin to sedges and grasses. Don’t let its modest appearance fool you – this perennial powerhouse is a true Arizona native that has adapted beautifully to life in the desert’s unique conditions. You might also see it listed under its former scientific name, Juncus arizonicus, but botanists now recognize it as a variety of the more widespread interior rush.

Where Does It Call Home?

As its common name suggests, Arizona rush is endemic to Arizona, making it a true local celebrity in the plant world. This specialized distribution means you’re growing a plant that’s perfectly adapted to your local conditions – assuming you’re gardening in the Grand Canyon State, of course!

Why Consider Arizona Rush for Your Garden?

Here’s where things get interesting. Arizona rush isn’t your typical plant it and forget it garden addition. This species comes with a conservation status that suggests it’s somewhat uncommon in the wild, which makes it both special and responsibility-requiring for gardeners.

If you’re drawn to:

  • Supporting truly local native plants
  • Creating habitat for specialized wildlife
  • Adding texture and movement to water-wise gardens
  • Contributing to conservation efforts through cultivation

Then Arizona rush might be calling your name. However, this isn’t a plant you’ll find at your local garden center, and that’s actually part of its appeal for dedicated native plant enthusiasts.

Growing Arizona Rush Successfully

Here’s where I need to be honest with you: specific growing information for this particular variety is limited, which tells us it’s not commonly cultivated. What we do know is that rushes generally prefer moist to wet conditions, which might seem counterintuitive for an Arizona native, but remember – even deserts have their wet spots!

Based on its rush family heritage, Arizona rush likely thrives in:

  • Areas with seasonal moisture or near water sources
  • Full sun to partial shade conditions
  • Soil that doesn’t completely dry out
  • Naturalistic or restoration-style plantings

A Word of Caution (and Responsibility)

Given Arizona rush’s conservation status, this isn’t a plant to collect from the wild – ever. If you’re serious about growing this species, you’ll need to source it responsibly from native plant sales, botanical gardens, or specialized native plant nurseries that propagate from ethical sources. Think of yourself as a conservation partner rather than just a gardener.

The Bottom Line

Arizona rush represents the more specialized side of native gardening. It’s not for everyone, and honestly, that’s okay. This plant is best suited for dedicated native plant enthusiasts who appreciate rarity, want to support local ecosystems, and don’t mind the challenge of growing something truly unique.

If you’re new to native gardening, you might want to start with more readily available Arizona natives and work your way up to specialists like Arizona rush. But if you’re already deep in the native plant world and looking for your next meaningful project, this little rush might just be the perfect addition to your conservation-minded garden.

Remember: with great plants comes great responsibility – especially when they’re as special as this Arizona original!

Arizona Rush

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Juncales

Family

Juncaceae Juss. - Rush family

Genus

Juncus L. - rush

Species

Juncus interior Wiegand - inland rush

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