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Western Meadow Rue
Thalictrum occidentale
  
About Western Meadow Rue (Thalictrum occidentale) 1 Nurseries Carry This Plant Thalictrum occidentale is a species of flowering plant in the buttercup family known by the common name western meadow-rue. It is native to northwestern North America from Alaska and western Canada to northern California to Wyoming and Colorado, where it grows in shady habitat types such as forest understory and more open, moist habitat such as meadows. Thalictrum occidentale is a perennial herb growing erect to a maximum height around a meter. It is hairless to lightly hairy and glandular. The leaves have compound blades divided into a few or many segments, often with three lobes, and are borne on long, slender petioles. The inflorescence is an upright or arching panicle of flowers with leaflike, lobed bracts often growing at the base. The species is dioecious, with male and female flowers occurring on separate plants. The male flower has a bell-shaped calyx of four sepals in shades of greenish white or purple. From the calyx dangle many long, purple stamens tipped with large anthers. The female flower has a cluster of immature fruits tipped with styles in shades of purple. A cluster has 4 to 9, at times up to 14, fruits.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
1.3 - 3.3 ft tall

Wildlife Supported
 


 
Butterflies & moths hosted ( 2 likely * ) SHOW ALL

Landscaping Information
Sun
Sun
Part Shade

Nurseries
Nurseries

Natural Setting
Site Type
Site Type
Moist open places

Climate
Climate
Annual Precipitation: 23.1" - 71.5", Summer Precipitation: 1.57" - 1.95", Coldest Month: 27.5" - 34.0", Hottest Month: 53.4" - 60.3", Humidity: 1.91" - 15.61", Elevation: 5107" - 8511"

Alternative Names
Common Names: Western Meadow-rue, Western Meadowrue


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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