North America Native Plant

Anderson’s Buttercup

Botanical name: Ranunculus andersonii var. tenellus

USDA symbol: RAANT

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Ranunculus andersonii A. Gray var. juniperinus (M.E. Jones) S.L. Welsh (RAANJ)  âš˜  Ranunculus juniperinus M.E. Jones (RAJU)   

Anderson’s Buttercup: A Hidden Gem for Southwestern Native Gardens If you’re looking to add authentic southwestern charm to your native garden, Anderson’s buttercup (Ranunculus andersonii var. tenellus) might just be the delightful surprise you’ve been seeking. This lesser-known native wildflower brings the classic appeal of buttercups to arid landscapes, proving ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3?Q: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Uncertain taxonomy: ⚘ Subspecies or variety is 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 ⚘

Anderson’s Buttercup: A Hidden Gem for Southwestern Native Gardens

If you’re looking to add authentic southwestern charm to your native garden, Anderson’s buttercup (Ranunculus andersonii var. tenellus) might just be the delightful surprise you’ve been seeking. This lesser-known native wildflower brings the classic appeal of buttercups to arid landscapes, proving that even desert regions can sparkle with golden blooms.

What Makes Anderson’s Buttercup Special?

Anderson’s buttercup is a perennial forb—basically a fancy way of saying it’s an herbaceous flowering plant that comes back year after year without developing woody stems. As a true native of the American Southwest, this plant has spent millennia adapting to the unique challenges and opportunities of its home region.

You might also encounter this plant listed under its scientific synonyms, including Ranunculus juniperinus, but don’t let the botanical names intimidate you. At its heart, this is simply a charming member of the buttercup family that’s perfectly at home in the Southwest.

Where Anderson’s Buttercup Calls Home

This native beauty naturally occurs across three southwestern states: Arizona, Nevada, and Utah. Its presence in these arid and semi-arid regions tells us a lot about its character—this isn’t your typical water-loving buttercup, but rather a hardy survivor that’s learned to thrive in challenging conditions.

Why Consider Anderson’s Buttercup for Your Garden?

There are several compelling reasons to welcome this native wildflower into your landscape:

  • True Native Status: As a genuine southwestern native, it supports local ecosystems and requires minimal resources once established
  • Low Maintenance: Adapted to regional conditions, it likely needs less water and care than non-native alternatives
  • Pollinator Support: Like other buttercups, it probably provides nectar for native bees and other small pollinators
  • Seasonal Interest: As a perennial, it returns each year to brighten your garden
  • Regional Authenticity: Perfect for gardeners wanting to create truly authentic southwestern landscapes

Growing Anderson’s Buttercup Successfully

While specific cultivation information for this variety is limited, we can make educated guesses based on its native habitat and related species. Here’s what successful growing likely involves:

Ideal Growing Conditions

  • Soil: Well-draining soil is probably essential—think rocky or sandy conditions rather than heavy clay
  • Water: Drought-tolerant once established, but may appreciate occasional deep watering during extreme dry spells
  • Sunlight: Likely prefers full sun to partial shade
  • Climate: Best suited for USDA hardiness zones 4-8, based on its native range

Planting and Care Tips

  • Source plants or seeds from reputable native plant nurseries
  • Plant in fall or early spring when temperatures are moderate
  • Provide good drainage to prevent root rot
  • Water regularly during establishment, then reduce frequency
  • Allow natural die-back in winter—it will return in spring

Perfect Garden Partners

Anderson’s buttercup works beautifully in:

  • Native wildflower gardens alongside other southwestern natives
  • Xeriscape designs where water conservation is a priority
  • Rock gardens where its delicate flowers can shine
  • Naturalized areas that mimic native plant communities

A Word of Caution: Rarity Considerations

Anderson’s buttercup has an undefined conservation status, which suggests it may be uncommon in some areas. If you decide to grow this plant, make sure to source it responsibly from reputable native plant suppliers who use sustainable collection practices. Never collect plants from the wild, as this can harm fragile populations.

Is Anderson’s Buttercup Right for Your Garden?

This native wildflower is an excellent choice if you:

  • Garden in Arizona, Nevada, Utah, or similar southwestern climates
  • Want to support native plant biodiversity
  • Prefer low-maintenance, drought-tolerant plants
  • Appreciate delicate, naturalistic beauty over bold, showy displays
  • Are creating habitat for native pollinators

While Anderson’s buttercup might not be the showiest plant in your garden, it offers something increasingly rare: authentic regional character and ecological value. In a world of generic landscaping, this little native stands as a testament to the unique beauty of southwestern flora. Give it a try, and you might just discover that sometimes the most rewarding garden plants are the ones that truly belong.

Anderson’s Buttercup

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Ranunculales

Family

Ranunculaceae Juss. - Buttercup family

Genus

Ranunculus L. - buttercup

Species

Ranunculus andersonii A. Gray - Anderson's buttercup

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