North America Native Plant

Bipinnate Princesplume

Botanical name: Stanleya pinnata var. bipinnata

USDA symbol: STPIB

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Stanleya bipinnata Greene (STBI6)  âš˜  Stanleya pinnata (Pursh) Britton var. gibberosa Rollins (STPIG)   

Bipinnate Princesplume: A Rare Native Gem for Western Gardens If you’re looking for a striking native plant that’s both beautiful and low-maintenance, meet the bipinnate princesplume (Stanleya pinnata var. bipinnata). This eye-catching perennial brings a touch of wild elegance to gardens with its towering spikes of bright yellow flowers and ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2T4: 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) ⚘ 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 ⚘ 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. ⚘

Bipinnate Princesplume: A Rare Native Gem for Western Gardens

If you’re looking for a striking native plant that’s both beautiful and low-maintenance, meet the bipinnate princesplume (Stanleya pinnata var. bipinnata). This eye-catching perennial brings a touch of wild elegance to gardens with its towering spikes of bright yellow flowers and uniquely divided foliage.

What Makes Bipinnate Princesplume Special?

This native forb herb is a true treasure of the American West. Unlike its woody cousins, bipinnate princesplume is a perennial that dies back to ground level each winter, only to emerge again with renewed vigor each spring. What sets this variety apart from other princesplumes is its distinctively bipinnate leaves – that’s botanist-speak for leaves that are divided twice, creating an almost fern-like appearance that’s quite stunning.

Where Does It Call Home?

Bipinnate princesplume is native to the high plains and foothills of Colorado and Wyoming, where it has adapted to challenging conditions over thousands of years. This limited native range makes it a special addition to gardens in these areas, as you’ll be growing a plant that truly belongs in your local ecosystem.

A Word About Rarity

Here’s something important to know: bipinnate princesplume has a conservation status that suggests it’s not commonly found in the wild. If you decide to add this beauty to your garden, please make sure you source it from reputable native plant nurseries that propagate their own plants rather than wild-collecting them. This helps protect wild populations while still allowing you to enjoy this remarkable plant at home.

Garden Appeal and Design Uses

This plant is a real showstopper when it blooms. Imagine tall, graceful spikes of bright yellow flowers rising 3-4 feet above the ground – it’s like having natural exclamation points scattered throughout your garden! The bipinnate princesplume works wonderfully as:

  • An accent plant in native plant gardens
  • A focal point in xeriscaping designs
  • Part of prairie restoration projects
  • A specimen plant that draws the eye and starts conversations

Pollinator Paradise

Your local pollinators will thank you for planting bipinnate princesplume. The bright yellow flower spikes are rich in nectar and attract a variety of bees, butterflies, and other beneficial insects. It’s like setting up a natural diner for your garden’s hardworking pollinators!

Growing Conditions: Less is More

One of the best things about bipinnate princesplume is that it thrives with minimal fuss – once you understand what it needs. This hardy perennial is suited for USDA hardiness zones 4-7 and prefers:

  • Full sun exposure
  • Well-draining soil (it absolutely hates wet feet)
  • Minimal supplemental watering once established
  • Poor to average soil fertility

Planting and Care Tips

Getting your bipinnate princesplume off to a good start is straightforward:

  • Spring planting: Plant in late spring after the last frost when soil has warmed
  • Soil preparation: Ensure excellent drainage – amend heavy clay soils with sand or gravel if needed
  • Watering: Water regularly the first growing season to establish roots, then reduce to occasional deep watering during extreme drought
  • Fertilizing: Skip the fertilizer! This plant evolved in nutrient-poor soils and too much fertility can make it weak and floppy
  • Maintenance: Cut back spent flower stalks if desired, or leave them for winter interest and seed production

The Bottom Line

Bipinnate princesplume is an excellent choice for gardeners in Colorado and Wyoming who want to support local ecosystems while adding unique beauty to their landscapes. Its drought tolerance, pollinator appeal, and striking appearance make it a winner for xeriscaping and native plant gardens. Just remember to source it responsibly, and you’ll have a conversation-starting native that connects your garden to the wild heritage of the American West.

While it may take a bit of effort to find this special plant, the reward is a low-maintenance perennial that’s perfectly adapted to your local climate and brings a piece of authentic western landscape right to your backyard.

Bipinnate Princesplume

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

Stanleya Nutt. - princesplume

Species

Stanleya pinnata (Pursh) Britton - desert princesplume

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