North America Native Plant

Sonoran Pricklyleaf

Botanical name: Thymophylla concinna

USDA symbol: THCO10

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Dyssodia concinna (A. Gray) B.L. Rob. (DYCO)   

Sonoran Pricklyleaf: A Tiny Desert Gem for Your Native Garden Meet Sonoran pricklyleaf (Thymophylla concinna), a charming little annual that proves good things really do come in small packages. This native Arizona wildflower might not win any height contests, but what it lacks in stature, it makes up for in ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: 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 ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Sonoran Pricklyleaf: A Tiny Desert Gem for Your Native Garden

Meet Sonoran pricklyleaf (Thymophylla concinna), a charming little annual that proves good things really do come in small packages. This native Arizona wildflower might not win any height contests, but what it lacks in stature, it makes up for in personality and ecological value.

What Is Sonoran Pricklyleaf?

Sonoran pricklyleaf is a delightful annual forb—basically a non-woody flowering plant that completes its entire life cycle in one growing season. You might also see it listed under its scientific synonym, Dyssodia concinna, in older gardening references. This native gem belongs exclusively to the American Southwest, where it has adapted perfectly to desert conditions.

Where Does It Call Home?

This little desert dweller is native to Arizona, where it thrives in the Sonoran Desert’s harsh but beautiful landscape. It’s perfectly adapted to the intense heat, brilliant sunshine, and minimal rainfall that characterize this unique ecosystem.

Why Consider Sonoran Pricklyleaf for Your Garden?

Before we dive into the why, there’s something important you should know: Sonoran pricklyleaf has a conservation status that suggests it may be somewhat uncommon in the wild. This makes it even more special to grow, but please make sure you source your seeds or plants from reputable native plant nurseries or seed companies that harvest responsibly.

Here’s what makes this plant worth seeking out:

  • True desert survivor: Thrives in conditions that would stress most other plants
  • Pollinator magnet: Those cheerful yellow flowers attract native bees and other beneficial insects
  • Low maintenance: Once established, it practically takes care of itself
  • Authentic desert character: Adds genuine Sonoran Desert flair to your landscape
  • Ecological value: Supports local wildlife and maintains regional biodiversity

Perfect Garden Spots

Sonoran pricklyleaf shines in:

  • Desert and xeriscape gardens
  • Rock gardens and gravelly areas
  • Native plant gardens
  • Areas with poor, well-draining soil
  • Spaces that receive intense sun and heat

Growing Conditions and Care

Think desert and you’ll have the right idea:

  • Sunlight: Full sun is essential—this plant loves basking in intense desert sunshine
  • Soil: Well-draining is key; sandy, gravelly, or rocky soils are perfect
  • Water: Minimal once established; relies primarily on natural rainfall
  • Climate: Best suited for USDA zones 9-11, particularly in arid regions

Planting and Care Tips

Growing Sonoran pricklyleaf is refreshingly straightforward:

  • When to plant: Direct seed in fall for spring germination, following natural desert patterns
  • Soil prep: Ensure excellent drainage; amend heavy soils with coarse sand or gravel
  • Watering: Provide occasional water during establishment, then rely on rainfall
  • Maintenance: Virtually none required—let it follow its natural annual cycle

The Bottom Line

Sonoran pricklyleaf is a wonderful choice for gardeners who want to create authentic desert landscapes while supporting native ecosystems. Its cheerful blooms, drought tolerance, and ecological benefits make it a valuable addition to the right garden setting. Just remember to source it responsibly, given its somewhat limited distribution in the wild.

If you’re gardening outside of Arizona or in conditions that don’t match the Sonoran Desert’s extreme climate, consider exploring other native Thymophylla species or similar desert annuals that might be better suited to your local conditions. Your local native plant society can be an excellent resource for finding the perfect desert gems for your specific location.

Sonoran Pricklyleaf

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

Thymophylla Lag. - pricklyleaf

Species

Thymophylla concinna (A. Gray) Strother - Sonoran pricklyleaf

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