North America Native Plant

Prairie Woodland-star

Botanical name: Lithophragma parviflorum var. trifoliatum

USDA symbol: LIPAT

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Lithophragma trifoliatum Eastw. (LITR2)   

Prairie Woodland-Star: A Charming Native Wildflower for California Gardens If you’re looking to add a touch of delicate spring beauty to your California native plant garden, prairie woodland-star might just be the perfect choice. This charming little perennial forb brings subtle elegance to woodland settings and naturalized areas with its ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 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. ⚘

Prairie Woodland-Star: A Charming Native Wildflower for California Gardens

If you’re looking to add a touch of delicate spring beauty to your California native plant garden, prairie woodland-star might just be the perfect choice. This charming little perennial forb brings subtle elegance to woodland settings and naturalized areas with its distinctive star-shaped blooms.

What Is Prairie Woodland-Star?

Prairie woodland-star (Lithophragma parviflorum var. trifoliatum) is a native California wildflower that belongs to the saxifrage family. As a perennial forb, it lacks woody stems but returns year after year from underground structures. You might also see it listed under its synonym Lithophragma trifoliatum in older gardening references.

This native gem is exclusively found in California, where it has adapted to the state’s unique Mediterranean climate and diverse habitats. Its limited range makes it a true California specialty plant.

Why Grow Prairie Woodland-Star?

There are several compelling reasons to consider adding this native wildflower to your garden:

  • Authentic native beauty: As a true California native, it supports local ecosystems and provides authentic regional character
  • Spring blooms: Produces delicate white to pinkish flowers with deeply divided petals that create a star-like appearance
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Pollinator support: Attracts beneficial native bees and flies that are important for local ecosystem health
  • Versatile placement: Works well in woodland gardens, rock gardens, and naturalized areas

Important Conservation Note

Prairie woodland-star has a conservation status that suggests it may be of concern in some areas. If you decide to grow this plant, please ensure you source it responsibly from reputable native plant nurseries rather than collecting from wild populations. This helps protect natural communities while still allowing you to enjoy this lovely native in your garden.

Growing Conditions and Care

Prairie woodland-star is surprisingly adaptable once you understand its preferences:

  • Light: Partial shade to full sun, though it appreciates some protection from intense afternoon sun
  • Soil: Well-draining soil is essential – it won’t tolerate soggy conditions
  • Water: Drought tolerant once established, but benefits from occasional deep watering during extended dry periods
  • Climate: Thrives in USDA hardiness zones 8-10, perfectly suited to California’s Mediterranean climate

Planting and Care Tips

Success with prairie woodland-star comes down to mimicking its natural habitat:

  • Timing: Plant in fall to allow the root system to establish before spring growth
  • Spacing: Give plants adequate space for air circulation to prevent fungal issues
  • Summer dormancy: Don’t worry if the plant goes dormant during hot summer months – this is natural behavior
  • Minimal fertilization: Like most natives, it doesn’t need rich soil or heavy feeding
  • Natural partners: Combine with other California natives like wild ginger, coral bells, or native grasses

Garden Design Ideas

Prairie woodland-star shines in several garden settings:

  • Woodland gardens: Plant beneath native oaks or other trees for a natural forest floor look
  • Rock gardens: Its drought tolerance makes it perfect for rocky, well-draining spots
  • Native plant borders: Use as an understory plant in mixed native plantings
  • Naturalized areas: Allow it to spread naturally in less formal garden spaces

The Bottom Line

Prairie woodland-star offers California gardeners a chance to grow something truly special – a native wildflower that connects your garden to the state’s natural heritage. While it requires responsible sourcing due to conservation concerns, its low-maintenance nature and authentic beauty make it a worthwhile addition to native plant gardens. Just remember to be patient with its natural rhythms, including summer dormancy, and you’ll be rewarded with charming spring blooms that support local pollinators and showcase California’s unique flora.

Prairie Woodland-star

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Saxifragaceae Juss. - Saxifrage family

Genus

Lithophragma (Nutt.) Torr. & A. Gray - woodland-star

Species

Lithophragma parviflorum (Hook.) Nutt. ex Torr. & A. Gray - smallflower woodland-star

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