North America Native Plant

Turner’s Four-nerve Daisy

Botanical name: Tetraneuris turneri

USDA symbol: TETU2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Hymenoxys turneri K.F. Parker (HYTU3)   

Turner’s Four-Nerve Daisy: A Rare Texas Treasure Worth Growing If you’re looking for a truly special addition to your Texas native garden, Turner’s four-nerve daisy (Tetraneuris turneri) might just be the hidden gem you’ve been searching for. This charming little perennial brings sunshine to any landscape with its cheerful yellow ...

Rare plant alert!

Region: Conservation status by state

Status: S3: 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 ⚘

Turner’s Four-Nerve Daisy: A Rare Texas Treasure Worth Growing

If you’re looking for a truly special addition to your Texas native garden, Turner’s four-nerve daisy (Tetraneuris turneri) might just be the hidden gem you’ve been searching for. This charming little perennial brings sunshine to any landscape with its cheerful yellow blooms, but there’s more to this plant than meets the eye.

What Makes Turner’s Four-Nerve Daisy Special

Turner’s four-nerve daisy is a herbaceous perennial forb that stays relatively compact, making it perfect for gardens where space is at a premium. True to its name, this daisy showcases bright yellow flowers with four distinct nerves or veins running through each petal – a feature that makes identification a breeze once you know what to look for.

Also known by its scientific synonym Hymenoxys turneri, this plant belongs to the sunflower family and shares that family’s reputation for being pollinator magnets. The flowers bloom from spring through fall, providing a long season of color and nectar.

A Texas Native with Limited Range

This delightful daisy is a true Texan, native exclusively to the Lone Star State. You’ll find it naturally occurring in the Edwards Plateau and South Texas Plains, where it has adapted to the region’s unique soil and climate conditions.

Important Conservation Considerations

Here’s where things get serious: Turner’s four-nerve daisy has a Global Conservation Status of S3, meaning it’s considered vulnerable. With only 21 to 100 known occurrences and an estimated 3,000 to 10,000 individuals remaining in the wild, this plant needs our help.

If you’re interested in growing this species, please only purchase from reputable native plant nurseries that use responsibly sourced, ethically propagated material. Never collect plants or seeds from wild populations – this could push already vulnerable populations closer to extinction.

Why Grow Turner’s Four-Nerve Daisy?

Despite its rarity (or perhaps because of it), there are compelling reasons to include this plant in your landscape:

  • Conservation hero: By growing this plant, you’re helping preserve a rare Texas native
  • Pollinator paradise: Bees, butterflies, and other native pollinators absolutely love the nectar-rich flowers
  • Low maintenance: Once established, it’s incredibly drought tolerant
  • Long bloom time: Enjoy flowers from spring through fall
  • Unique beauty: Those distinctive four-nerved petals are real conversation starters

Perfect Garden Settings

Turner’s four-nerve daisy shines in several garden styles:

  • Rock gardens: Its compact size and drought tolerance make it ideal for rocky, well-draining spots
  • Xeriscapes: Perfect for water-wise landscaping
  • Native plant gardens: An authentic Texas native that supports local ecosystems
  • Wildflower meadows: Adds bright spots of color to naturalistic plantings
  • Groundcover areas: Works well in dry areas where traditional groundcovers struggle

Growing Conditions and Care

The good news is that Turner’s four-nerve daisy isn’t particularly fussy once you understand its preferences. This plant thrives in USDA hardiness zones 7-9, making it suitable for most of Texas.

Light requirements: Full sun is essential – this plant won’t perform well in shade

Soil preferences: Well-draining soil is crucial. It naturally grows in alkaline soils, so don’t worry if your Texas clay is on the basic side. Just ensure good drainage to prevent root rot.

Water needs: While you’ll need to water regularly during establishment, mature plants are quite drought tolerant. In fact, overwatering is more likely to cause problems than underwatering.

Planting and Care Tips

Spring is the ideal time to plant Turner’s four-nerve daisy. Here’s how to set your plant up for success:

  • Choose a sunny location with good air circulation
  • Improve heavy clay soils by adding coarse sand or gravel for drainage
  • Water regularly the first growing season to help establish roots
  • Once established, water only during extended dry periods
  • Deadhead spent flowers to encourage continued blooming
  • Allow some flowers to go to seed if you want the plant to self-sow
  • Minimal fertilization needed – too much can actually reduce flowering

A Plant Worth Preserving

Turner’s four-nerve daisy represents everything wonderful about native gardening – it’s beautiful, supports local wildlife, requires minimal resources once established, and connects us to our local natural heritage. By choosing to grow this rare species responsibly, you’re not just adding a lovely plant to your garden; you’re becoming part of a conservation effort.

Remember, the key is sourcing your plant ethically. Look for nurseries that specialize in native Texas plants and can verify their Turner’s four-nerve daisy stock comes from legitimate propagation programs, not wild collection. Together, we can help ensure this Texas treasure continues to brighten gardens and wild spaces for generations to come.

Turner’s Four-nerve Daisy

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

Tetraneuris Greene - four-nerve daisy

Species

Tetraneuris turneri (K.F. Parker) K.F. Parker - Turner's four-nerve daisy

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