North America Native Plant

Oneseed Pussypaws

Botanical name: Cistanthe monosperma

USDA symbol: CIMO5

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Calyptridium monospermum Greene (CAMO6)  âš˜  Spraguea monosperma (Greene) Rydb. (SPMO3)   

Oneseed Pussypaws: A Tiny Desert Gem for Your Native Garden If you’re looking for a charming little native annual to add authentic western character to your rock garden or xeriscape, meet oneseed pussypaws (Cistanthe monosperma). Don’t let the quirky common name fool you – this diminutive desert dweller packs plenty ...

Oneseed Pussypaws: A Tiny Desert Gem for Your Native Garden

If you’re looking for a charming little native annual to add authentic western character to your rock garden or xeriscape, meet oneseed pussypaws (Cistanthe monosperma). Don’t let the quirky common name fool you – this diminutive desert dweller packs plenty of personality into its petite package.

What Makes Oneseed Pussypaws Special

Oneseed pussypaws is a true native of the American West, naturally occurring across California, Nevada, and Oregon. As an annual forb – essentially a non-woody flowering plant – it completes its entire life cycle in a single growing season, making it a fascinating addition for gardeners who appreciate the ephemeral beauty of desert wildflowers.

You might also encounter this plant listed under its former scientific names, Calyptridium monospermum or Spraguea monosperma, but Cistanthe monosperma is the current accepted botanical name.

Garden Appeal and Landscape Role

While oneseed pussypaws won’t win any awards for towering height or bold blooms, its subtle beauty lies in the details. This low-growing annual forms small basal rosettes of succulent-like leaves, topped with delicate clusters of tiny white to pinkish flowers. Think of it as nature’s own miniature garden sculpture.

In the landscape, oneseed pussypaws serves several valuable roles:

  • Provides authentic regional character in native plant gardens
  • Offers textural contrast as a groundcover in rock gardens
  • Fills gaps between larger plants in xeriscapes
  • Creates naturalized drifts in wildflower meadows
  • Supports small native pollinators with its modest blooms

Perfect Garden Matches

This little native thrives in specialized garden settings where its natural desert heritage can shine:

  • Rock gardens: Tucks beautifully between stones and boulders
  • Desert and xeriscape gardens: Provides authentic regional flora
  • Native plant collections: Represents important local biodiversity
  • Naturalized areas: Self-sows to create informal colonies

Growing Conditions and Care

The beauty of oneseed pussypaws lies partly in its low-maintenance nature. This tough little annual has adapted to harsh desert conditions, making it surprisingly easy to grow if you can mimic its natural habitat:

Sunlight: Full sun is essential – this plant loves bright, direct light throughout the day.

Soil: Well-draining sandy or gravelly soil is crucial. Clay soils or areas that retain moisture will likely spell disaster for this desert native.

Water: Minimal irrigation required once established. Overwatering is probably the quickest way to kill this drought-adapted species.

Climate: Best suited for USDA hardiness zones 7-10, though as an annual, it’s more concerned with seasonal growing conditions than winter survival.

Planting and Propagation Tips

Growing oneseed pussypaws from seed offers the most authentic experience and best results:

  • Direct sow seeds in fall or early spring when natural rainfall patterns would normally germinate wild populations
  • Scatter seeds on prepared soil surface – no need to bury deeply
  • Choose a location that mimics natural habitat: sunny, well-drained, perhaps slightly sloped
  • Be patient – germination may be sporadic and tied to moisture availability
  • Once established, plants typically self-seed for following seasons

Wildlife and Pollinator Benefits

While small, oneseed pussypaws plays its part in supporting local ecosystems. The tiny flowers attract small native bees and other diminutive pollinators that often get overlooked in garden planning. These smaller pollinators are crucial for maintaining healthy native plant communities.

Is Oneseed Pussypaws Right for Your Garden?

Consider adding oneseed pussypaws to your garden if you:

  • Live within or near its native range (California, Nevada, Oregon)
  • Garden in arid or semi-arid conditions
  • Appreciate subtle, naturalistic beauty over bold garden statements
  • Want to support native biodiversity and small pollinators
  • Enjoy the seasonal rhythm of annual wildflowers

However, this might not be the plant for you if you prefer:

  • High-impact flowering displays
  • Plants that provide structure year-round
  • Gardens in humid or wet climates
  • Low-maintenance perennials over annual replanting

The Bottom Line

Oneseed pussypaws represents the understated charm of western native flora. While it won’t dominate your garden design, it offers authentic regional character and supports local wildlife in ways that non-native alternatives simply cannot match. For gardeners committed to creating truly sustainable, regionally appropriate landscapes, this little annual deserves serious consideration.

Remember, successful native gardening often means learning to appreciate beauty in forms we might initially overlook. Oneseed pussypaws teaches us that sometimes the smallest plants can make the biggest difference in creating authentic, ecologically valuable garden spaces.

Oneseed Pussypaws

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Portulacaceae Dumort. - Purslane family

Genus

Cistanthe Spach - pussypaws

Species

Cistanthe monosperma (Greene) Hershkovitz - oneseed pussypaws

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