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Thalictrum occidentale
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Western Meadow Rue
( Thalictrum occidentale )
Thalictrum occidentale
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Western Meadow Rue (Thalictrum occidentale)
1 Nurseries Carry This Plant
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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
Perennial herb
Size
1.3 - 3.3 ft tall
Wildlife Supported
Butterflies & moths hosted ( 2
likely
* )
SHOW ALL
*
Spotted Cut-Worm
Xestia c-nigrum
Xestia c-nigrum
*
Satyr Pug
Eupithecia satyrata
Eupithecia satyrata
Landscaping Information
Sun
Part Shade
Nurseries
Carried by 1
Natural Setting
Site Type
Moist open places
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
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Western Meadow Rue
Thalictrum occidentale
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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