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Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Perideridia gairdneri

Perideridia gairdneri (Hook. & Arn.) Mathias

Gardner's Yampah, Yampah

Apiaceae (Carrot Family)


USDA Symbol: PEGA3

USDA Native Status: L48 (N), CAN (N)

Yampah is a member of the carrot family (family Apiaceae). Carrots are usually aromatic herbs with hollow stems and fern-like leaves. Small flowers in umbels, further grouped into a compound umbel.


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Schizocarp
Size Notes: Up to about 4 feet tall.
Leaf: Green

Bloom Information

Bloom Color: White
Bloom Time: Apr , May , Jun , Jul , Aug , Sep


USA: AZ , CA , CO , ID , MT , NM , NV , OR , SD , UT , WA , WY
Canada: AB , BC , SK

Growing Conditions

Water Use: High
Light Requirement: Shade
CaCO3 Tolerance: Low


Conspicuous Flowers: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR

Web Reference

Webref 62 - Burke Herbarium Image Collection (2020) University of Washington
Webref 30 - Calflora (2018) Calflora
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Perideridia gairdneri in USDA Plants
FNA: Find Perideridia gairdneri in the Flora of North America (if available)
Google: Search Google for Perideridia gairdneri


Record Modified: 2023-06-07
Research By: TWC Staff

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