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Senecio blochmaniae
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Dune Ragwort
( Senecio blochmaniae )
Senecio blochmaniae
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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2 Nurseries Carry This Plant
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About Dune Ragwort (Senecio blochmaniae)
2 Nurseries Carry This Plant
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Senecio blochmaniae
is an uncommon species of flowering plant in the aster family known by the common names dune ragwort and Blochman's ragwort. It is endemic to the Central Coast of California, where it is known only from the direct coastline of San Luis Obispo and Santa Barbara Counties. It grows in sand dunes and sandy areas on coastal floodplains. It is a subshrub producing several arching stems often well exceeding a meter tall from a thick taproot. The stems are covered in many leaves, which are linear in shape, thick, and measure up to 12 centimeters long. The lower leaves become dry and curl up. The flower heads are lined by about 13 green-tipped phyllaries. They contain many yellow disc florets and each has usually 8 narrow yellow ray florets about a centimeter long.
Plant Description
Plant Type
Shrub
Size
2 - 4 ft tall
Flower Color
Yellow, Green
Flowering Season
Spring, Summer, Fall
Wildlife Supported
Butterflies & moths hosted ( 2
confirmed
, 22
likely
* )
SHOW ALL
Oso Flaco Flightless Moth
Areniscythris brachypteris
Areniscythris brachypteris
Phalonidia felix
Phalonidia felix
*
Painted Lady
Vanessa cardui
Vanessa cardui
*
Northern Checkerspot
Chlosyne palla
Chlosyne palla
*
American Lady
Vanessa virginiensis
Vanessa virginiensis
*
White-lined Sphinx
Hyles lineata
Hyles lineata
*
Alfalfa Looper Moth
Autographa californica
Autographa californica
Landscaping Information
Sun
Full Sun
Nurseries
Carried by 2
Ease of Care
Moderately Easy
Propagation
?
For propagating by seed: No treatment.
Sunset Zones
?
14*, 15, 16, 17, 19, 20, 21, 22*, 23*, 24
Natural Setting
Site Type
Dunes, floodplains
Climate
Annual Precipitation: 13.6" - 25.5", Summer Precipitation: 0.18" - 0.30", Coldest Month: 46.8" - 51.4", Hottest Month: 62.6" - 69.6", Humidity: 0.74" - 14.08", Elevation: 3" - 1162"
Alternative Names
Common Names
: Blochman's Ragwort
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Dune Ragwort
Senecio blochmaniae
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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