North America Native Plant

Newberry’s Twinpod

Botanical name: Physaria newberryi var. yesicola

USDA symbol: PHNEY

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Physaria newberryi A. Gray ssp. yesicola (R.C. Sivinski) O'Kane (PHNEY2)   

Newberry’s Twinpod: A Rare New Mexican Native Worth Knowing Meet Newberry’s twinpod (Physaria newberryi var. yesicola), a delightful little perennial that’s as rare as it is charming. This diminutive member of the mustard family might not be the flashiest plant in your garden, but it packs a punch when it ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4T1T3: Status is uncertain but is somewhere between the following rankings: 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 ⚘ 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 ⚘

Newberry’s Twinpod: A Rare New Mexican Native Worth Knowing

Meet Newberry’s twinpod (Physaria newberryi var. yesicola), a delightful little perennial that’s as rare as it is charming. This diminutive member of the mustard family might not be the flashiest plant in your garden, but it packs a punch when it comes to native plant gardening and conservation value.

What Makes This Plant Special?

Newberry’s twinpod is a true New Mexican native, found only within the state’s borders. As a perennial forb, this low-growing plant forms attractive rosettes of silvery-green foliage that hug the ground. Come spring, it produces clusters of bright yellow flowers that practically glow against the desert landscape.

But here’s the thing – this little beauty is quite rare. With a conservation status that indicates limited distribution and population concerns, Newberry’s twinpod is definitely not your run-of-the-mill garden plant. It’s currently found only in New Mexico, making it a true regional treasure.

A Word About Rarity

Before you get too excited about adding this plant to your collection, let’s talk about its rare status. Physaria newberryi var. yesicola has a conservation ranking that suggests it’s uncommon and potentially vulnerable. This means that if you’re interested in growing it, you’ll need to be extra careful about sourcing.

Only purchase plants or seeds from reputable native plant nurseries that can guarantee their stock was responsibly propagated – never collected from wild populations. Better yet, check with local native plant societies or botanical gardens about conservation efforts you might be able to support.

Garden Appeal and Uses

So why would you want to grow Newberry’s twinpod? Here are a few compelling reasons:

  • Perfect for rock gardens and xerophytic landscapes
  • Excellent ground cover for specialized native plant collections
  • Attracts native pollinators, especially small native bees
  • Requires minimal water once established
  • Adds authentic regional character to New Mexico gardens
  • Supports local ecosystem and wildlife

Growing Conditions

This plant is all about that desert life. Newberry’s twinpod thrives in:

  • Full sun exposure
  • Well-draining, sandy or rocky soils
  • Arid to semi-arid conditions
  • USDA hardiness zones 5-8 (approximate, based on its New Mexico range)
  • Low water requirements once established

Planting and Care Tips

Growing Newberry’s twinpod successfully is all about mimicking its natural habitat:

  • Ensure excellent drainage – this plant absolutely hates wet feet
  • Plant in a sunny location that receives morning sun
  • Use a gritty, well-draining soil mix
  • Water sparingly, especially during establishment
  • Avoid fertilizing – these plants prefer lean soils
  • Mulch with gravel or small rocks rather than organic matter

The Bottom Line

Newberry’s twinpod isn’t for every gardener or every garden. It’s a specialized plant that requires specific conditions and responsible sourcing. However, if you’re passionate about native plant conservation, creating authentic regional landscapes, or you simply love the idea of growing something truly unique and rare, this little gem might be worth the effort.

Just remember – with rarity comes responsibility. If you decide to grow Newberry’s twinpod, you’re not just adding a plant to your garden; you’re becoming a steward of a precious piece of New Mexico’s natural heritage.

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