North America Native Plant

Greenstem Paperflower

Botanical name: Psilostrophe sparsiflora

USDA symbol: PSSP

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Riddellia tagetina (Nutt.) Greene var. sparsiflora A. Gray (RITAS)   

Greenstem Paperflower: A Desert Gem for Water-Wise Gardens If you’re looking for a cheerful, low-maintenance native plant that laughs in the face of drought, let me introduce you to the greenstem paperflower (Psilostrophe sparsiflora). This plucky little perennial might not be the showiest flower in the garden, but what it ...

Greenstem Paperflower: A Desert Gem for Water-Wise Gardens

If you’re looking for a cheerful, low-maintenance native plant that laughs in the face of drought, let me introduce you to the greenstem paperflower (Psilostrophe sparsiflora). This plucky little perennial might not be the showiest flower in the garden, but what it lacks in size, it more than makes up for in personality and resilience.

What Makes Greenstem Paperflower Special?

The greenstem paperflower is a true southwestern native, calling Arizona, New Mexico, and Utah home. As a perennial forb (that’s garden-speak for a non-woody flowering plant), it brings years of dependable blooms to your landscape without the fuss of replanting annually.

This charming plant produces small, bright yellow daisy-like flowers surrounded by distinctive papery bracts that give it both its common name and its unique texture. The blooms appear from spring through fall, providing an incredibly long season of color that most plants can’t match.

Why Your Garden Will Love This Plant

Here’s where the greenstem paperflower really shines – it’s practically bulletproof once established. This desert dweller has evolved to thrive in harsh conditions, making it perfect for:

  • Xeriscaping and drought-tolerant gardens
  • Rock gardens and desert landscapes
  • Native plant gardens
  • Low-maintenance border plantings
  • Naturalized areas where you want color without constant care

Pollinator Paradise

Don’t let its modest size fool you – greenstem paperflower is a pollinator magnet! Native bees, butterflies, and other beneficial insects flock to its sunny blooms throughout the growing season. By planting this native species, you’re supporting local ecosystems and providing crucial habitat for wildlife.

Growing Conditions: Less is More

The beauty of greenstem paperflower lies in its simplicity. This plant thrives in USDA hardiness zones 7-10 and asks for very little:

  • Sunlight: Full sun is essential for best flowering
  • Soil: Well-draining sandy or rocky soil (clay soil is a no-go)
  • Water: Minimal once established – this plant actually prefers dry conditions
  • Soil fertility: Poor to moderate soil is perfect; rich soil can actually harm the plant

Planting and Care Tips

Getting started with greenstem paperflower couldn’t be easier:

  • When to plant: Spring or fall are ideal planting times
  • Spacing: Give plants adequate room to spread naturally
  • Watering: Water regularly the first year to establish roots, then back off significantly
  • Fertilizing: Skip the fertilizer – this plant prefers lean conditions
  • Maintenance: Deadhead spent flowers to encourage continued blooming

Is This Plant Right for Your Garden?

Greenstem paperflower is perfect if you want a native plant that delivers consistent color with minimal effort. It’s ideal for gardeners in the Southwest who are tired of fighting their climate and want to work with nature instead of against it.

However, this might not be your best choice if you’re gardening outside its native range or if you prefer lush, high-water gardens. The plant’s modest size and desert aesthetic work best in naturalistic settings rather than formal garden designs.

The Bottom Line

In a world where many gardeners are moving toward sustainable, water-wise landscaping, greenstem paperflower offers the perfect combination of native heritage, pollinator support, and no-fuss beauty. It proves that sometimes the best plants are the ones that ask for the least while giving back the most. Your water bill – and the local wildlife – will thank you.

Greenstem Paperflower

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Psilostrophe DC. - paperflower

Species

Psilostrophe sparsiflora (A. Gray) A. Nelson - greenstem paperflower

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