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Senecio flaccidus
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Threadleaf Ragwort
( Senecio flaccidus )
Senecio flaccidus
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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3 Nurseries Carry This Plant
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About Threadleaf Ragwort (Senecio flaccidus)
3 Nurseries Carry This Plant
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Senecio flaccidus
, formerly recorded as Senecio douglasii (in honor of the botanist David Douglas) member of the daisy family and genus Senecio also known as Threadleaf Groundsel (and Bush Senecio, Creek Senecio, Shrubby Butterweed, Comb Butterweed, Smooth Threadleaf Ragwort, Mono Ragwort, Douglas Ragwort, Douglas Groundsel, Sand Wash Groundsel, Felty Groundsel, Old Man, Yerba Cana, Squawweed or Cenicillo) is a native of the southwestern Great Plains of North America. Threadleaf ragwort is a fast growing, short lived (3 to 6 years) bushy perennial shrub growing to 4 feet 6 inches ; common in gravelly washes, dry creek beds, along roads & trails and mostly away from the coast.
Plant Description
Plant Type
Shrub
Size
5 ft tall
Growth Rate
Fast
Flower Color
Yellow
Flowering Season
Summer, Fall
Wildlife Supported
Butterflies & moths hosted ( 27
likely
* )
SHOW ALL
*
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
*
Salt Marsh Moth or Acrea Moth
Estigmene acrea
Estigmene acrea
*
Garden Tortrix Moth
Clepsis peritana
Clepsis peritana
Landscaping Information
Sun
Full Sun
Moisture
Extremely Low, Very Low
Nurseries
Carried by 3
Soil Drainage
Fast
Natural Setting
Site Type
Dry, rocky or sandy places
Climate
Annual Precipitation: 3.2" - 51.2", Summer Precipitation: 0.14" - 4.37", Coldest Month: 28.8" - 56.6", Hottest Month: 55.4" - 85.8", Humidity: 0.68" - 40.38", Elevation: 3" - 10012"
Alternative Names
Common Names
: Bush Senecio, Creek Senecio, Douglas Senecio, Threadleaf Groundsel
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Threadleaf Ragwort
Senecio flaccidus
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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