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North America Native Plant

Leafy Raillardiopsis

Leafy Raillardiopsis: A Rare Native Gem for California Gardens If you’re passionate about native California plants and love supporting local ecosystems, you might want to get acquainted with leafy raillardiopsis (Anisocarpus scabridus). This charming little perennial is one of those special native plants that deserves more attention – though with ...

Rare plant alert!

This plant is listed as rare and may be protected in certain regions. Its populations are limited, and removal from the wild could further endanger its survival. If you wish to enjoy this plant, consider sourcing from reputable nurseries that propagate responsibly or explore alternatives to help preserve natural populations.

Region: Conservation status by state

Status: S2S3: 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) ⚘ 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 ⚘

Leafy Raillardiopsis: A Rare Native Gem for California Gardens

If you’re passionate about native California plants and love supporting local ecosystems, you might want to get acquainted with leafy raillardiopsis (Anisocarpus scabridus). This charming little perennial is one of those special native plants that deserves more attention – though with an important caveat we’ll discuss below.

What Is Leafy Raillardiopsis?

Leafy raillardiopsis is a herbaceous perennial forb that’s as native to California as they come. This means it’s a non-woody plant that dies back to the ground each year but returns reliably from its roots. You might also see it listed under its former scientific names, Raillardella scabrida or Raillardiopsis scabrida, if you’re browsing older plant references.

Where Does It Grow Naturally?

This plant is a true California endemic, meaning it grows naturally nowhere else in the world. You’ll find it in the Golden State’s mountainous regions, where it has adapted to the unique Mediterranean climate and growing conditions.

Why Consider Growing Leafy Raillardiopsis?

There are several compelling reasons why this native plant might catch your gardening fancy:

  • It produces cheerful yellow daisy-like flowers that attract native pollinators
  • As a drought-tolerant native, it’s perfectly suited to California’s water-wise gardening needs
  • It works beautifully in rock gardens and native plant collections
  • It supports local ecosystems by providing habitat and food for native wildlife

Important Conservation Note

Here’s where we need to have a serious conversation: leafy raillardiopsis has a Global Conservation Status of S2S3, which indicates it’s quite rare in the wild. This rarity status means you should absolutely not collect this plant from natural populations, and if you do choose to grow it, make sure you source it responsibly from reputable native plant nurseries that propagate their own stock.

Growing Conditions and Care

If you can find responsibly sourced plants, leafy raillardiopsis is surprisingly low-maintenance once established. Here’s what it needs to thrive:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil is absolutely essential
  • Water: Drought-tolerant once established, minimal summer water
  • Climate: Best suited for USDA zones 8-10

Perfect Garden Spots

This native beauty shines in:

  • Native California plant gardens
  • Rock gardens and xeriscapes
  • Areas where you want low-maintenance ground cover
  • Pollinator gardens focused on native species

Planting and Care Tips

The key to success with leafy raillardiopsis is remembering its mountain origins. Good drainage is non-negotiable – soggy soil will quickly spell doom for this plant. Plant it in spring after the last frost, water it regularly until established (usually the first growing season), then step back and let it do its thing. It’s adapted to California’s dry summers, so resist the urge to overwater.

Supporting Conservation Through Gardening

By choosing to grow rare native plants like leafy raillardiopsis (with responsibly sourced material), you’re participating in conservation efforts. Your garden becomes a safe haven for native species and helps maintain genetic diversity outside of wild populations. Just remember: always buy from reputable sources, never collect from the wild, and consider sharing seeds or divisions with other native plant enthusiasts to help spread this special species responsibly.

Growing rare natives isn’t just about having an unusual plant in your garden – it’s about becoming a steward of California’s unique botanical heritage.

Leafy Raillardiopsis

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

Anisocarpus Nutt. - tarweed

Species

Anisocarpus scabridus (Eastw.) B.G. Baldw. - leafy raillardiopsis

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