North America Native Plant

Newberry’s Twinpod

Botanical name: Physaria newberryi var. racemosa

USDA symbol: PHNER

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Newberry’s Twinpod: A Rare Desert Gem Worth Protecting If you’re looking to add something truly special to your native plant collection, Newberry’s twinpod (Physaria newberryi var. racemosa) might just be the hidden treasure you’ve been searching for. This little-known perennial forb brings a touch of the American Southwest’s wild beauty ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4T1?Q: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Uncertain taxonomy: ⚘ Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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 ⚘

Newberry’s Twinpod: A Rare Desert Gem Worth Protecting

If you’re looking to add something truly special to your native plant collection, Newberry’s twinpod (Physaria newberryi var. racemosa) might just be the hidden treasure you’ve been searching for. This little-known perennial forb brings a touch of the American Southwest’s wild beauty to specialized gardens, but it comes with an important conservation story that every gardener should know.

What Makes Newberry’s Twinpod Special

Newberry’s twinpod is a charming member of the mustard family that stays true to its desert roots. As a perennial forb, it’s an herbaceous plant without woody stems—think of it as nature’s way of creating a low-maintenance ground hugger that comes back year after year. The plant produces cheerful yellow flowers that are perfectly at home in the harsh beauty of the American Southwest.

Where This Desert Native Calls Home

This distinctive variety of twinpod has chosen some pretty exclusive real estate for its natural habitat. You’ll find Newberry’s twinpod growing wild in Arizona and Utah, where it has adapted to life in some of the most challenging environments in the lower 48 states.

A Plant That Needs Our Help

Important Conservation Note: Newberry’s twinpod has a conservation status that suggests it may be uncommon or declining in its native range. If you’re interested in growing this plant, it’s crucial to source it responsibly from reputable native plant nurseries that propagate their stock rather than wild-collecting. Never collect plants from the wild—this helps ensure that natural populations remain stable for future generations.

Why Grow Newberry’s Twinpod?

Despite its specialized needs, there are compelling reasons to consider this rare beauty:

  • Conservation impact: Growing responsibly sourced plants helps preserve genetic diversity
  • Pollinator support: The yellow flowers attract native bees and other beneficial insects
  • Water-wise gardening: Once established, it thrives with minimal irrigation
  • Unique character: Few gardeners grow this species, making it a true conversation starter

Growing Conditions and Care

Newberry’s twinpod isn’t for every garden, but if you can provide the right conditions, it’s surprisingly low-maintenance:

  • Sunlight: Full sun is essential—this plant loves basking in bright light
  • Soil: Excellent drainage is non-negotiable; rocky, sandy, or gravelly soils work best
  • Water: Drought-tolerant once established, but avoid overwatering at all costs
  • Climate: Best suited for USDA hardiness zones 4-8, matching its native range

Perfect Garden Settings

This specialized native works best in:

  • Rock gardens with excellent drainage
  • Desert-themed landscapes
  • Native plant demonstration gardens
  • Xerophytic plant collections
  • Conservation-focused botanical displays

Planting and Care Tips

Success with Newberry’s twinpod comes down to mimicking its natural desert environment:

  • Plant in spring after the last frost
  • Ensure soil drains quickly—consider raised beds or slopes
  • Water sparingly during establishment, then rely on natural rainfall
  • Avoid fertilizers, which can harm desert-adapted plants
  • Protect from excessive winter moisture in humid climates

A Plant for Conservation-Minded Gardeners

Newberry’s twinpod isn’t the easiest native plant to grow, nor is it the showiest. But for gardeners passionate about conservation and native plant preservation, it offers something precious: the opportunity to participate in protecting a piece of America’s natural heritage. By growing this rare beauty responsibly, you’re not just adding to your garden—you’re helping ensure that future generations will still be able to encounter Newberry’s twinpod in the wild places where it belongs.

Remember, the key to success lies in respecting both the plant’s needs and its conservation status. Source responsibly, grow carefully, and enjoy being part of this special plant’s story.

Newberry’s Twinpod

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Capparales

Family

Brassicaceae Burnett - Mustard family

Genus

Physaria (Nutt. ex Torr. & A. Gray) A. Gray - twinpod

Species

Physaria newberryi A. Gray - Newberry's twinpod

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