Species Detail Woody, Cacti, Succulent

Lynx Creek
Sue Smith

Yavapai County Native & Naturalized Plants

Toxicodendron rydbergii - western poison ivy

Synonyms: Rhus radicans, Rhus toxicodendron, Toxicodendron crenatum, Toxicodendron desertorum, Toxicodendron radicans, Toxicodendron volubile

Plant Form:Shrub

Family: Anacardiaceae


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Plant - summer Lynx Creek Sue Smith	Plant - summer Lynx Creek Sue Smith	Leaves and fruit Lynx Creek Sue Smith	Fall leaves & fruit Grapevine Canyon Sue Smith	Fall leaves Grapevine Canyon Sue Smith
Plant Description Origin: Native General Description: Deciduous. Erect shrub or ascending, single-stalked or few-branched, forming colonies by runners. It lacks aerial roots so does not climb like the eastern species. All parts have an oil skin irritant that causes a severe reaction in many individuals. Identification notes: Shrub or subshrub; stems erect, single-stalked or few-branched; alternate compound leaves near ends of stems, 3 stalked leaflets; flower 5 yellowish-white petals and 5 stamens with yellow tips; fruit round, white berry. Rhizomatous. Height: 2 feet Width: Varies depending on support Habitat Habitat Description: Found in moist but often sunny sites in canyons, along streams and at seeps and springs from the low desert to mixed conifer forests. Plant Communities: Riparian Elevation: 3000 - 8000 feet Flowers Color: Yellowish-white, greenish Shape: Regular in round clusters Tubular: N Flowering Period: Apr - Sep Description: Flowers are 1/4 inch wide in loose clusters to 3 inches long in lower leaf axils, each cluster usually having fewer than 25 flowers. Greenish sepals. Leaves Leaf Color: Dark Green Type: Compound Shape: Round or oval Margin: Toothed Attachment: Alternate Hairs: N Description: Dark green, compound, divided into 3 leaflets, usually shiny, oblong to lance-shaped to oval, notched or toothed, 4 inches long with red tinge when immature. Turns reddish-orange in fall. Fruit Color: White to yellowish-white Type: Berry-like Description: Cluster of 1/4 inch berry-like fruits. Bark/Branches Bark Color: Light brown Bark Texture (Mature): Rough Bark and Branch Description: Light brown woody stems. Spines, thorns or prickles: N


	Arizona Cooperative Extension Yavapai County 840 Rodeo Dr #C Prescott, AZ 86305 (928) 445-6590	Version 8.0 http://cales.arizona.edu/yavapaiplants/SpeciesDetail.php Last Updated: Dec 13, 2022 Content Questions/Comments: Email Matt Halldorson Legal Disclaimer