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Western Trillium
Trillium ovatum
  
About Western Trillium (Trillium ovatum) 5 Nurseries Carry This Plant Trillium ovatum, the Pacific trillium, western trillium, western wakerobin, or western white trillium, is a member of the Trilliaceae family, or sometimes included within the Liliaceae or Melanthiaceae. It occurs in parts of the western United States and western Canada, usually in rich forest. In the northern part of its range, which includes southern British Columbia, extreme southwestern Alberta, Washington, Oregon and east to Montana, Wyoming and northern Colorado, it often grows under Douglas-fir. Other trees which frequently shade this trillium include grand fir, western red cedar, and western hemlock; bigleaf maple, red alder and Sitka spruce join in near the coast. Near California shores, it is common under coast redwood. Associated understory plants include swordfern, vanilla leaf, violets, redwood sorrel and salal. To learn more, visit the Jepson Herbarium's YouTube channel and watch a short video about this species:
https://www.youtube.com/watch?v=K3z-TiLrvS0
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
2.3 ft tall

Flower Color
Flower Color
White

Flowering Season
Flowering Season
Winter, Spring

Wildlife Supported
 


 
Butterflies & moths hosted ( 1 likely * ) SHOW ALL

Landscaping Information
Sun
Sun
Shade, Part Shade

Moisture
Moisture
Moderate - High

Nurseries
Nurseries

Propagation
Propagation?
For propagating by seed: 1 mo. stratification.

Sunset Zones
Sunset Zones?
14, 15, 16, 17

Natural Setting
Site Type
Site Type
Moist slopes and canyon banks

Climate
Climate
Annual Precipitation: 16.8" - 153.3", Summer Precipitation: 0.24" - 5.63", Coldest Month: 33.6" - 49.8", Hottest Month: 51.2" - 74.4", Humidity: 0.01" - 21.93", Elevation: 9" - 7623"

Alternative Names
Common Names: Pacific Trillium, Wake-robin, Western Wakerobin


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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