North America Native Plant

Tapertip Desertparsley

Botanical name: Lomatium attenuatum

USDA symbol: LOAT

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Tapertip Desertparsley: A Rare Rocky Mountain Native Worth Protecting If you’re drawn to rare and unusual native plants, tapertip desertparsley (Lomatium attenuatum) might just capture your gardening heart. This delicate perennial forb brings a touch of Rocky Mountain wilderness to specialized native gardens, though its rarity means it requires some ...

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 ⚘

Tapertip Desertparsley: A Rare Rocky Mountain Native Worth Protecting

If you’re drawn to rare and unusual native plants, tapertip desertparsley (Lomatium attenuatum) might just capture your gardening heart. This delicate perennial forb brings a touch of Rocky Mountain wilderness to specialized native gardens, though its rarity means it requires some thoughtful consideration before adding it to your landscape.

What Is Tapertip Desertparsley?

Tapertip desertparsley is a low-growing perennial native to the American West, specifically found in Montana and Wyoming. As a member of the carrot family (Apiaceae), it produces the characteristic umbrella-shaped flower clusters that make this plant family so distinctive. The tapertip part of its name refers to the finely divided, feathery foliage that tapers to delicate points.

This hardy forb lacks significant woody tissue and grows as a ground-hugging rosette, making it perfectly adapted to harsh mountain conditions. Its small white to cream-colored flowers appear in spring, creating delicate umbels that seem to float above the intricate foliage.

Where Does It Grow?

Tapertip desertparsley calls the Rocky Mountain region home, with documented populations in Montana and Wyoming. This plant thrives in the challenging conditions of higher elevations, where it has adapted to rocky soils, intense sun, and minimal moisture.

Important Conservation Considerations

Here’s where things get serious: tapertip desertparsley has a Global Conservation Status of S3, meaning it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 and 10,000 individuals in the wild, this isn’t a plant to take lightly.

If you’re considering adding this rare beauty to your garden, you absolutely must source it responsibly. This means:

  • Only purchasing from reputable native plant nurseries that propagate their own stock
  • Never collecting from wild populations
  • Verifying that any plants you buy are nursery-propagated, not wild-collected
  • Supporting conservation efforts by choosing ethical suppliers

Why Grow Tapertip Desertparsley?

Despite its rarity (or perhaps because of it), tapertip desertparsley offers several compelling reasons to include it in the right garden:

  • Conservation value: Growing responsibly sourced plants helps preserve genetic diversity
  • Pollinator support: The small flowers attract native bees, beneficial wasps, and other tiny pollinators
  • Unique beauty: Few plants offer such delicate, finely textured foliage combined with charming spring blooms
  • Drought tolerance: Once established, it thrives with minimal water
  • Authentic native landscaping: Perfect for gardeners wanting true regional natives

Ideal Growing Conditions

Tapertip desertparsley isn’t a plant for every garden, but in the right conditions, it can thrive:

  • Sunlight: Full sun is essential
  • Soil: Well-draining, rocky, or sandy soils; excellent drainage is crucial
  • Water: Dry conditions once established; avoid overwatering
  • Climate: Hardy in USDA zones 4-7
  • Garden style: Rock gardens, alpine gardens, native plant gardens, xeriscaping

Planting and Care Tips

Growing tapertip desertparsley successfully requires understanding its mountain origins:

  • Plant in spring after the last frost
  • Ensure absolutely perfect drainage – this plant will rot in soggy conditions
  • Water sparingly during establishment, then rely on natural precipitation
  • Avoid fertilizing; this plant prefers lean soils
  • Be patient – it may take time to establish due to its deep taproot
  • Once planted, avoid disturbing the root system

Design Ideas and Landscape Role

Tapertip desertparsley works best as:

  • An accent plant in rock gardens where its delicate texture contrasts with stone
  • Ground cover in native plant collections
  • A conversation piece in specialized alpine gardens
  • Part of drought-tolerant landscape designs

The Bottom Line

Tapertip desertparsley isn’t for every gardener or every garden. Its rarity means it requires responsible sourcing, and its specific growing requirements mean it won’t thrive in typical garden conditions. However, for the right gardener with the right conditions and a commitment to conservation, this delicate native offers a unique opportunity to grow something truly special while supporting plant preservation efforts.

If you’re drawn to rare natives and can provide the rocky, well-draining conditions this plant craves, tapertip desertparsley might just become the crown jewel of your native plant collection. Just remember: with great rarity comes great responsibility.

Tapertip Desertparsley

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

Apiales

Family

Apiaceae Lindl. - Carrot family

Genus

Lomatium Raf. - desertparsley

Species

Lomatium attenuatum Evert - tapertip desertparsley

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