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Osmorhiza occidentalis
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Mountain Sweet Cicely
( Osmorhiza occidentalis )
Osmorhiza occidentalis
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Mountain Sweet Cicely (Osmorhiza occidentalis)
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Osmorhiza occidentalis
is a species of flowering plant in the carrot family known by the common name western sweetroot. It is native to much of western North America, where it grows in wooded and forested areas. It is an erect perennial herb up sometimes exceeding one meter tall. The green leaves have blades up to 20 centimeters long which are divided into toothed and irregularly cut leaflets. The blade is borne on a long petiole. The flower cluster is a compound umbel of many tiny yellowish flowers at the tip of a stemlike peduncle. The fruit is elongated and narrow, up to 2.2 centimeters long. Many Native American groups used this plant for a great variety of medicinal purposes.
Plant Description
Plant Type
Perennial herb
Size
2 - 4 ft tall
Form
Upright
Growth Rate
Slow
Flower Color
Yellow
Flowering Season
Spring
Wildlife Supported
Butterflies & moths hosted ( 1
confirmed
, 1
likely
* )
SHOW ALL
Agonopterix rosaciliella
Agonopterix rosaciliella
*
Black Swallowtail
Papilio polyxenes
Papilio polyxenes
Landscaping Information
Sun
Full Sun, Part Shade
Soil Description
Adaptable, tolerant of sand, loam and clay
Propagation
?
For propagating by seed: 2 mos. stratification (Emery and Frey 1971).
Natural Setting
Climate
Annual Precipitation: 16.2" - 131.3", Summer Precipitation: 0.44" - 4.41", Coldest Month: 23.3" - 48.8", Hottest Month: 44.2" - 75.0", Humidity: 0.68" - 23.12", Elevation: 174" - 11527"
Alternative Names
Common Names
: Sweetanise, Western Sweetroot
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Mountain Sweet Cicely
Osmorhiza occidentalis
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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