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Threetooth Horkelia
Horkelia tridentata
About Threetooth Horkelia (Horkelia tridentata) 0 Nurseries Carry This Plant Horkelia tridentata is a species of flowering plant in the rose family known by the common name threetooth horkelia. It is native to all of the mountain ranges of northern California and southern Oregon, where it grows in coniferous forest. This is a perennial herb forming tufts of erect leaves and stems. The leaves are 3 to 12 centimeters long, each made up of hairy gray-green leaflets which are tipped with usually three teeth. Unlike many other horkelias, this species is generally not strongly scented. The green or reddish stems reach a maximum length of about 40 centimeters and hold clusters of flowers. Each flower has minute bractlets beneath small, hairy, pointed sepals and narrow white petals.
Plant Description
Plant Type
Plant Type
Perennial herb

1.5 ft tall

Flower Color
Flower Color
White, Green, Red

Wildlife Supported

Butterflies & moths hosted ( 3 likely * ) SHOW ALL

Landscaping Information
Common uses
Common uses
Bee Gardens

Natural Setting
Annual Precipitation: 4.4" - 145.8", Summer Precipitation: 0.25" - 5.58", Coldest Month: 10.8" - 61.4", Hottest Month: 34.1" - 88.8", Humidity: 0.37" - 24.92", Elevation: 15" - 14090"

Alternative Names
Common Names: Threetooth Honeydew

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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