North America Native Plant

Psoralea Globemallow

Botanical name: Sphaeralcea psoraloides

USDA symbol: SPPS

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Psoralea Globemallow: A Rare Native Gem That Needs Our Protection If you’re drawn to unique native plants and have a passion for conservation, you might be intrigued by the psoralea globemallow (Sphaeralcea psoraloides). But before you start planning where to plant this distinctive perennial, there’s something crucial you need to ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘

Psoralea Globemallow: A Rare Native Gem That Needs Our Protection

If you’re drawn to unique native plants and have a passion for conservation, you might be intrigued by the psoralea globemallow (Sphaeralcea psoraloides). But before you start planning where to plant this distinctive perennial, there’s something crucial you need to know about its rarity status.

What Makes Psoralea Globemallow Special

Psoralea globemallow is a native perennial forb that belongs to the fascinating world of globemallows. As a forb, it’s essentially an herbaceous flowering plant without woody stems – think of it as nature’s way of creating a soft, non-woody perennial that returns year after year. This plant represents a unique piece of America’s botanical heritage, being native to the lower 48 states.

Where Does It Call Home?

Here’s where things get interesting – and concerning. Psoralea globemallow has an extremely limited range, currently found only in Utah. This tiny geographic footprint is already a red flag for plant enthusiasts who care about conservation.

The Reality Check: This Plant Is Imperiled

Before you fall too hard for this rare beauty, you need to understand its conservation status. Psoralea globemallow carries a Global Conservation Status of S2, which translates to Imperiled. What does this mean exactly?

  • Only 6 to 20 known occurrences exist in the wild
  • The total population likely ranges from just 1,000 to 3,000 individual plants
  • It’s considered extremely vulnerable to extinction
  • Various factors make it especially at risk of disappearing forever

This isn’t just rare – it’s hanging on by a thread in the wild.

Should You Grow Psoralea Globemallow?

Here’s the honest answer: maybe, but only under very specific circumstances. If you’re passionate about growing this imperiled native, you absolutely must ensure any plants or seeds come from responsible, ethical sources. Never collect from wild populations – doing so could literally contribute to pushing this species toward extinction.

Consider these points before deciding:

  • Conservation value: Growing it in gardens could help preserve the species
  • Responsibility factor: You’d be participating in conservation efforts
  • Sourcing challenge: Finding ethically sourced plants may be difficult or impossible
  • Limited information: Growing advice is scarce due to its rarity

Growing Conditions and Care

Unfortunately, detailed growing information for psoralea globemallow is limited, largely because so few people have experience with it outside its natural habitat. What we do know is that as a Utah native, it likely prefers:

  • Arid to semi-arid conditions typical of the region
  • Well-draining soils
  • Full sun exposure
  • Minimal water once established

If you do manage to source this plant responsibly, treat it like other desert globemallows – provide excellent drainage, avoid overwatering, and give it plenty of sunshine.

The Bigger Picture

While psoralea globemallow might capture your imagination, consider this an opportunity to appreciate just how precious our native plant diversity truly is. Instead of seeking out this imperiled species, you might focus on other native globemallow species that are more readily available and won’t put additional pressure on wild populations.

If you’re in Utah and passionate about native plant conservation, consider connecting with local native plant societies or botanical organizations. They may have insights into ethical conservation efforts for this species or similar alternatives that can provide the unique beauty you’re seeking without the conservation concerns.

The Bottom Line

Psoralea globemallow represents both the wonder and fragility of our native plant heritage. While it’s technically possible to grow it, the responsibility that comes with cultivating such a rare species is significant. Unless you have access to confirmed ethically sourced material and a serious commitment to conservation, you might want to appreciate this plant’s story as a reminder of why protecting native plant habitats matters so much.

Sometimes the best way to love a plant is to leave it where it belongs – in its natural habitat, where every individual counts toward the species’ survival.

Psoralea Globemallow

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

Malvales

Family

Malvaceae Juss. - Mallow family

Genus

Sphaeralcea A. St.-Hil. - globemallow

Species

Sphaeralcea psoraloides S.L. Welsh - psoralea globemallow

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