North America Native Plant

Sharpleaf Twinpod

Botanical name: Physaria acutifolia var. purpurea

USDA symbol: PHACP

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Sharpleaf Twinpod: A Rare Utah Native Worth Knowing If you’re passionate about growing truly unique native plants, the sharpleaf twinpod (Physaria acutifolia var. purpurea) might just capture your gardening heart. This perennial forb is a botanical treasure that calls Utah home, but before you rush to add it to your ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Sharpleaf Twinpod: A Rare Utah Native Worth Knowing

If you’re passionate about growing truly unique native plants, the sharpleaf twinpod (Physaria acutifolia var. purpurea) might just capture your gardening heart. This perennial forb is a botanical treasure that calls Utah home, but before you rush to add it to your garden, there are some important things you should know about this special plant.

What Makes Sharpleaf Twinpod Special?

Sharpleaf twinpod is a native perennial that grows as a forb – essentially a non-woody plant that lacks significant woody tissue. What sets this variety apart is its rarity; it has a conservation status of S5T2, meaning it’s considered uncommon to rare in its native range. This makes it a plant of special conservation concern.

As its name suggests, this plant is native to the lower 48 states, specifically found growing in Utah. Its limited geographic distribution makes it a true regional specialty that represents the unique flora of the American West.

A Word of Caution for Conservation-Minded Gardeners

Before considering adding sharpleaf twinpod to your garden, it’s crucial to understand its rarity status. Because this plant is uncommon in the wild, any gardening efforts should only use responsibly sourced material. This means:

  • Never collect plants or seeds from wild populations
  • Only purchase from reputable native plant nurseries that ethically propagate their stock
  • Consider participating in conservation seed collection programs if available
  • Support botanical gardens and conservation organizations working to preserve this species

Garden Appeal and Growing Conditions

For the dedicated native plant enthusiast, sharpleaf twinpod offers a unique addition to specialized garden settings. As a perennial forb, it’s best suited for rock gardens, native plant collections, or xerophytic landscapes that celebrate the beauty of arid-adapted plants.

This plant thrives in conditions that mirror its natural Utah habitat:

  • Full sun exposure
  • Excellent drainage is absolutely critical
  • Minimal water requirements once established
  • Rocky or sandy soils
  • USDA hardiness zones 4-7

Aesthetic and Ecological Value

While sharpleaf twinpod may not be the showiest plant in your garden, it offers subtle beauty with its compact growth form and delicate yellow flowers that appear in spring. These blooms attract small native bees and other pollinators, making it a valuable addition to pollinator-friendly landscapes.

Should You Grow Sharpleaf Twinpod?

The decision to grow this rare native comes with responsibility. If you’re an experienced native plant gardener who can provide the specific growing conditions it needs and you can source it ethically, sharpleaf twinpod can be a meaningful addition to a conservation-focused garden.

However, if you’re looking for easier native alternatives that provide similar ecological benefits without the conservation concerns, consider other Utah natives that are more widely available and less rare in the wild.

Final Thoughts

Sharpleaf twinpod represents the fascinating diversity of our native flora and the importance of plant conservation. Whether you choose to grow it or simply appreciate it from afar, this little Utah endemic reminds us that every plant has a story worth preserving for future generations.

Sharpleaf 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 acutifolia Rydb. - sharpleaf twinpod

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