North America Native Plant

Trans-pecos Maidenbush

Botanical name: Phyllanthopsis arida

USDA symbol: PHAR6

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Andrachne arida (Warnock & M.C. Johnst.) G.L. Webster (ANAR8)  âš˜  Savia arida Warnock & M.C. Johnst. (SAAR23)   

Trans-Pecos Maidenbush: A Rare Texas Native Worth Protecting Meet the Trans-Pecos maidenbush (Phyllanthopsis arida), a little-known native shrub that calls the rugged desert landscapes of far West Texas home. This perennial beauty might not be on every gardener’s wish list, but it deserves our attention for its ecological importance and ...

Rare plant alert!

Region: Conservation status by state

Status: S2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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) ⚘

Trans-Pecos Maidenbush: A Rare Texas Native Worth Protecting

Meet the Trans-Pecos maidenbush (Phyllanthopsis arida), a little-known native shrub that calls the rugged desert landscapes of far West Texas home. This perennial beauty might not be on every gardener’s wish list, but it deserves our attention for its ecological importance and unique desert adaptations.

What Makes Trans-Pecos Maidenbush Special?

Trans-Pecos maidenbush is a multi-stemmed woody shrub that typically grows 4-5 meters tall (about 13-16 feet), though it can sometimes reach greater heights or remain single-stemmed depending on environmental conditions. As a member of the Phyllanthaceae family, it shares characteristics with other drought-adapted desert plants.

You might also encounter this plant listed under its former scientific names, including Andrachne arida or Savia arida, as botanical classifications have evolved over time.

Where Does It Grow?

This native Texas shrub is found exclusively in the Trans-Pecos region of the Lone Star State, where it has adapted to the harsh conditions of the Chihuahuan Desert. Its limited geographic range makes it a true Texas endemic – a plant found nowhere else in the world.

Important Conservation Considerations

Here’s where things get serious: Trans-Pecos maidenbush has a Global Conservation Status of S2Q, indicating conservation concerns about its population status. This rarity classification means we should approach this plant with extra care and respect.

If you’re considering adding this plant to your landscape, please ensure you source it responsibly:

  • Only purchase from reputable native plant nurseries that propagate from legally collected seed
  • Never collect plants or seeds from wild populations
  • Consider supporting conservation efforts for this species instead of personal cultivation

Growing Conditions and Care

Given its Trans-Pecos origins, this shrub likely thrives in:

  • Full sun exposure
  • Well-draining, rocky or sandy soils
  • Minimal water once established
  • USDA hardiness zones 8-10 (estimated based on its native range)

However, detailed cultivation information is limited due to the plant’s rarity and specialized habitat requirements. Most gardeners would find it challenging to recreate the specific conditions this desert specialist needs.

Landscape Role and Garden Suitability

Trans-Pecos maidenbush would theoretically fit into:

  • Xerophytic or desert-themed gardens
  • Native Texas plant collections
  • Conservation-focused landscapes

However, its rarity and specialized needs make it more suitable for botanical gardens, research institutions, or dedicated conservation projects rather than typical home landscapes.

Better Alternatives for Most Gardeners

Unless you’re specifically working on Trans-Pecos native plant conservation, consider these more readily available Texas native alternatives:

  • Cenizo (Leucophyllum species) – drought-tolerant with purple flowers
  • Agarito (Mahonia trifoliolata) – native shrub with berries for wildlife
  • Flame-leaf sumac (Rhus lanceolata) – beautiful fall color and bird habitat

The Bottom Line

Trans-Pecos maidenbush represents the incredible plant diversity hidden in Texas’s desert regions. While most gardeners shouldn’t seek out this rare species for their home landscapes, we can all appreciate its ecological importance and support conservation efforts to protect unique plants like this one.

If you’re passionate about Texas natives, consider visiting botanical gardens or natural areas where you might encounter this remarkable shrub in its proper context – contributing to the complex desert ecosystem it calls home.

Trans-pecos Maidenbush

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

Euphorbiales

Family

Euphorbiaceae Juss. - Spurge family

Genus

Phyllanthopsis (Scheele) Voronts. & Petra Hoffm.

Species

Phyllanthopsis arida (Warnock & M.C. Johnst.) Voronts. & Petra Hoffm. - Trans-Pecos maidenbush

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