North America Native Plant

Roundleaf Leather-root

Botanical name: Hoita orbicularis

USDA symbol: HOOR

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Psoralea orbicularis Lindl. (PSOR2)   

Roundleaf Leather-Root: A Hidden Gem for California’s Wetland Gardens Meet roundleaf leather-root (Hoita orbicularis), one of California’s lesser-known native treasures that deserves a spot in every wetland garden. This charming perennial might not be as famous as its showy cousins, but it brings its own special magic to moisture-loving landscapes ...

Roundleaf Leather-Root: A Hidden Gem for California’s Wetland Gardens

Meet roundleaf leather-root (Hoita orbicularis), one of California’s lesser-known native treasures that deserves a spot in every wetland garden. This charming perennial might not be as famous as its showy cousins, but it brings its own special magic to moisture-loving landscapes across the Golden State.

What Makes Roundleaf Leather-Root Special?

This delightful California native is a true wetland specialist, earning the distinction of being classified as an Obligate Wetland plant in both the Arid West and Western Mountains regions. That’s a fancy way of saying it absolutely loves having its feet wet! As a member of the legume family, roundleaf leather-root sports the characteristic small, rounded leaves that give it its common name, along with clusters of purple-pink flowers that appear in summer.

Botanically known as Hoita orbicularis, this perennial forb grows as a non-woody herbaceous plant, making it perfect for adding soft texture to your garden without the commitment of shrubs or trees.

Where Does It Call Home?

Roundleaf leather-root is exclusively native to California, where it has adapted to thrive in the state’s unique Mediterranean climate and diverse wetland habitats. You’ll find it naturally occurring from the Sierra Nevada foothills to coastal ranges throughout the state.

Why You’ll Want This Plant in Your Garden

If you’re looking to create an authentic California native garden or restore a wetland area, roundleaf leather-root offers several compelling benefits:

  • True California Native: Support local ecosystems by growing plants that belong here
  • Pollinator Friendly: The legume flowers attract native bees and other beneficial insects
  • Wetland Specialist: Perfect for rain gardens, bog gardens, or naturally wet areas
  • Low Maintenance: Once established in the right conditions, it’s relatively hands-off
  • Unique Texture: The rounded leaves add interesting foliage contrast to your plant palette

Growing Conditions and Care

Here’s where roundleaf leather-root gets particular about its preferences. This plant is not for your average garden bed – it’s a wetland specialist through and through!

Essential Growing Requirements:

  • Moisture: Consistently wet to moist soil is non-negotiable
  • Hardiness: Thrives in USDA zones 8-10
  • Light: Adaptable to partial shade or full sun conditions
  • Soil: Prefers rich, organic soils that retain moisture

Perfect Garden Settings

Roundleaf leather-root shines in specialized garden situations:

  • Wetland restoration projects
  • Rain gardens and bioswales
  • Bog gardens or water features
  • Native plant gardens with irrigation
  • Naturalistic plantings near streams or ponds

Planting and Establishment Tips

Success with roundleaf leather-root comes down to understanding its wetland nature:

  • Plant in spring when soil temperatures warm up
  • Ensure consistent moisture from the get-go – never let it dry out
  • Consider installing drip irrigation if you don’t have natural wetland conditions
  • Be patient during establishment – it may take a full season to get going
  • Minimal fertilization needed – as a legume, it fixes its own nitrogen

Is This Plant Right for You?

Roundleaf leather-root isn’t for everyone, and that’s okay! This plant is perfect if you:

  • Have naturally wet or boggy areas in your landscape
  • Are creating a rain garden or wetland restoration
  • Want to support native California ecosystems
  • Enjoy growing specialized or unusual plants
  • Have reliable irrigation for consistent moisture

However, skip this one if you’re looking for a drought-tolerant native or don’t want to commit to regular watering. There are plenty of other fantastic California natives better suited for drier conditions.

The Bottom Line

Roundleaf leather-root may be a niche plant, but for the right garden situation, it’s absolutely perfect. This true California native brings authentic local character to wetland gardens while supporting pollinators and adding unique texture to your plant community. Just remember – keep those roots happy and wet, and this charming native will reward you with years of quiet beauty in your garden.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Arid West

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Western Mountains, Valleys, and Coast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Roundleaf Leather-root

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

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Hoita Rydb. - leather-root

Species

Hoita orbicularis (Lindl.) Rydb. - roundleaf leather-root

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