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American Wintercress
Barbarea orthoceras
  
About American Wintercress (Barbarea orthoceras) 2 Nurseries Carry This Plant Barbarea orthoceras is a species of flowering plant in the mustard family known by the common name American yellowrocket. It is native to North America, including much of Canada and the western United States, as well as parts of Asia. It grows in moist areas such as meadows and riverbanks, particularly in the drier parts of it's range. This is a perennial herb producing a stiff, branching stem to heights between 10 and 60 centimeters. The leaves are a few centimeters long and generally oval in shape with several rounded lobes toward the end. The flower cluster is a spike or cluster of bright yellow flowers at the tip of each stem branch. The fruit is a straight, narrow silique up to 5 centimeters long.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
0.33 - 2 ft tall

Flower Color
Flower Color
Yellow

Flowering Season
Flowering Season
Winter, Spring

Wildlife Supported
 


 
Butterflies & moths hosted ( 1 confirmed , 3 likely * ) SHOW ALL

Landscaping Information
Sun
Sun
Part Shade

Moisture
Moisture
Moderate - High

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Common uses
Common uses
Butterfly Gardens

Natural Setting
Climate
Climate
Annual Precipitation: 3.1" - 153.3", Summer Precipitation: 0.17" - 5.57", Coldest Month: 17.9" - 59.4", Hottest Month: 38.4" - 88.1", Humidity: 0.08" - 38.62", Elevation: 11" - 14460"

Alternative Names
Common Names: American Yellowrocket, Erectpod Wintercress


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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