North America Native Plant

Parish’s Yampah

Botanical name: Perideridia parishii latifolia

USDA symbol: PEPAL

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Parish’s Yampah: A Lesser-Known Native Gem for California and Nevada Gardens Meet Parish’s yampah (Perideridia parishii latifolia), a charming native perennial that’s flying under the radar in most gardening circles. This delicate member of the carrot family might not have the flashy reputation of some native plants, but it brings ...

Parish’s Yampah: A Lesser-Known Native Gem for California and Nevada Gardens

Meet Parish’s yampah (Perideridia parishii latifolia), a charming native perennial that’s flying under the radar in most gardening circles. This delicate member of the carrot family might not have the flashy reputation of some native plants, but it brings its own quiet elegance to the right garden setting.

What Makes Parish’s Yampah Special?

Parish’s yampah is a native forb—essentially a non-woody perennial herb—that calls California and Nevada home. As a true native of the lower 48 states, this plant has been quietly thriving in its natural habitat long before any of us started thinking about sustainable gardening.

This species grows naturally across California and Nevada, where it has adapted to local conditions over thousands of years. Its native status means it’s already perfectly suited to support local wildlife and fit seamlessly into regional ecosystems.

The Gardener’s Perspective: Should You Plant It?

Here’s where things get interesting—and a bit mysterious. Parish’s yampah is one of those native plants that seems to have stayed out of the horticultural spotlight. While we know it’s a perennial forb with the delicate white umbel flowers typical of the carrot family, detailed growing information is surprisingly scarce.

This could be both a challenge and an opportunity for adventurous native plant gardeners. On one hand, you won’t find detailed care sheets or extensive cultivation guides. On the other hand, you might be one of the first to really explore this plant’s garden potential!

What We Do Know About Growing Parish’s Yampah

Based on its classification as a forb and its native range, Parish’s yampah likely fits best in:

  • Native plant gardens focusing on California and Nevada species
  • Wildflower meadow plantings
  • Natural landscape designs that mimic local ecosystems

Like most plants in the carrot family, it probably produces small white flowers arranged in umbrella-like clusters (umbels) that are attractive to small pollinators like native bees and beneficial insects.

The Reality Check

If you’re set on growing Parish’s yampah, you’ll need to do some detective work. The limited cultivation information available means you might need to:

  • Contact native plant societies in California and Nevada
  • Look for specialty native plant nurseries that might carry it
  • Connect with botanists or restoration specialists familiar with the species
  • Consider growing it from seed if you can source it responsibly

Alternative Native Choices

While you’re hunting for Parish’s yampah, consider these better-documented native alternatives that might scratch the same itch:

  • Other Perideridia species (yampah family members)
  • Native umbellifers from your region
  • Well-documented California and Nevada native forbs

The Bottom Line

Parish’s yampah represents the fascinating world of lesser-known native plants that might have untapped garden potential. While it’s not the easiest plant to research or grow, it could be perfect for the native plant enthusiast who loves a good gardening mystery. Just remember—successful cultivation might require some pioneering spirit and plenty of patience!

If you do manage to grow Parish’s yampah successfully, consider sharing your experience with native plant communities. You might just help bring this quiet beauty into the gardening mainstream.

Parish’s Yampah

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

Perideridia Rchb. - yampah

Species

Perideridia parishii (J.M. Coult. & Rose) A. Nelson & J.F. Macbr. - Parish's yampah

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