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Mentzelia laevicaulis
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Blazing Star
( Mentzelia laevicaulis )
Mentzelia laevicaulis
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Blazing Star (Mentzelia laevicaulis)
9 Nurseries Carry This Plant
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Mentzelia laevicaulis
is a showy wildflower native to western North America. In California it is found in most counties throughout the state. Its common names include Giant Blazing Star and Smoothstem Blazing Star. It grows a weedy-looking, branched stem which may reach a meter in height. The whitish-green stem and its lateral branches bear the occasional triangular sawtoothed leaf. At the tip of each branch blooms a spectacular yellow flower. The star-shaped flower has five narrow, pointed petals with shiny yellow surfaces, each up to 8 centimeters long. Between the petals are long, thin yellow sepals. The center of the open-faced flower is filled with a great many whiskery yellow stamens. Beneath the petals are long, curling leaves. The plant bears capsule fruits containing winged seeds. This is a widespread plant which can be found in sandy, rocky, and disturbed areas, such as roadsides.
Plant Description
Plant Type
Perennial herb
Size
3.3 ft tall
Growth Rate
Fast
Flower Color
Yellow
Flowering Season
Summer, Fall
Wildlife Supported
Native bees, bumble bees
Butterflies & moths hosted ( 1
likely
* )
SHOW ALL
*
Protogygia album
Protogygia album
Landscaping Information
Sun
Full Sun
Moisture
Low
Nurseries
Carried by 9
Soil Drainage
Fast
Soil Description
Prefers well-draining, rocky soil. Soil PH: 5.8 - 9.6
Common uses
Bee Gardens
Sunset Zones
?
1, 2*, 3*, 7*, 9, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Natural Setting
Site Type
Sandy rocky slopes, washes, roadcuts
Climate
Annual Precipitation: 4.2" - 80.1", Summer Precipitation: 0.16" - 2.77", Coldest Month: 24.7" - 54.4", Hottest Month: 48.0" - 83.6", Humidity: 0.29" - 35.33", Elevation: -167" - 9755"
Alternative Names
Common Names
: Blazingstar Mentzelia, Giant Blazing Star, Smoothstem Blazing Star, Smoothstem Blazingstar
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Blazing Star
Mentzelia laevicaulis
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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