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Blepharizonia laxa
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Glandular Big Tarweed
( Blepharizonia laxa )
Blepharizonia laxa
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Glandular Big Tarweed (Blepharizonia laxa)
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Blepharizonia laxa
is a
California species
of tarweed known by the common name glandular big tarweed. It is endemic to central California, where it grows in the Central Coast Ranges and adjacent areas of the southern San Francisco Bay Area and Central Valley, from Contra Costa County to as far south as San Luis Obispo County.
Blepharizonia laxa
is similar to its relative, B. plumosa. It tends, however, to be yellow-green rather than gray-green, and covered with many more stalked glands.
Plant Description
Plant Type
Annual herb
Flower Color
Yellow
Landscaping Information
Natural Setting
Climate
Annual Precipitation: 7.3" - 29.6", Summer Precipitation: 0.15" - 0.54", Coldest Month: 40.9" - 51.8", Hottest Month: 68.4" - 78.1", Humidity: 1.08" - 26.03", Elevation: 19" - 4795"
Alternative Names
Common Names
: Blepharizonia
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Glandular Big Tarweed
Blepharizonia laxa
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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