Asclepias speciosa Torr.
showy milkweed
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Click on the image below to enlarge it and download a high-resolution
JPEG file.
Robert Tatina. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Courtesy of USDA NRCS Wetland Science Institute. Usage Requirements.
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Images:
Asclepias speciosa Torr.
Click on a thumbnail to view an image, or
see all the Asclepias thumbnails at the PLANTS Gallery
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Synonyms:
Asclepias speciosa Torr.
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ASGI6 |
Asclepias giffordii Eastw. |
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Distribution:
Asclepias speciosa Torr.
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See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (AZ, CA, CO, IA, ID, IL, KS, MI, MN, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WI, WY), CAN (AB, BC, MB, SK) |
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Related Taxa:
Asclepias speciosa Torr.
View
23 genera in Asclepiadaceae,
76 species in Asclepias
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Classification:
Asclepias speciosa Torr.
Click on a scientific name below to expand it in the PLANTS
Classification Report.
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Threatened and Endangered Information:
Asclepias speciosa Torr.
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists.
Click on a place name to get a complete protected plant
list for that location.
| Iowa: |
| showy milkweed |
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Threatened |
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U.S. Weed Information:
Asclepias speciosa Torr.
showy milkweed
This plant can be weedy or invasive according to the authoritative sources noted below. This plant
may be known by one or more common names in different
places, and some are listed above. Click on an acronym
to view each weed list, or click here for a
composite list of Weeds of the U.S.
| WSWS |
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Whitson, T.D. (ed.) et al.
1996.
Weeds of the West.
Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming.
Laramie, Wyoming.
630pp.
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Wetland Indicator Status:
Asclepias speciosa Torr.
| Nat. Ind. |
Reg. 1 |
Reg. 2 |
Reg. 3 |
Reg. 4 |
Reg. 5 |
Reg. 6 |
Reg. 7 |
Reg. 8 |
Reg. 9 |
Reg. 0 |
Reg. A |
Reg. C |
Reg. H |
| FAC,FACW |
NO |
NI |
FAC |
FAC |
FAC |
FAC |
FACW- |
FACW |
FAC+ |
FAC |
NO |
NO |
NO |
Interpreting Wetland Indicator Status
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More Accounts and Images:
Asclepias speciosa Torr.
View photographs from CalPhotos.
View species account from ARS Germplasm Resources Information Network (GRIN).
View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 30304.
View species account and distribution map from Jepson Interchange (University of California - Berkeley).
View species account from Kemper Center for Home Gardening.
View species account and photographs from Lady Bird Johnson Wildflower Center Native Plant Information Network (NPIN).
View species account from Native American Ethnobotany (University of Michigan - Dearborn).
View photographs and distribution from University of Washington Burke Museum.
View species account and photographs from University of Wisconsin - Stevens Point Freckmann Herbarium.
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Related Web Sites:
Asclepias speciosa Torr.
CA-Jepson Flora Project
CO-Southwest Colorado Wildflowers
Canada-British Columbia-Pest Management
IN-Center for New Crops and Plant Products (Purdue)
MT-Montana State University Weed Science
OR-Malheur Experiment Station
UK-Plants For A Future
USDA NRCS Wetland Flora
USDI GS NPWRC-Native Wildflowers of the North Dakota Grasslands
WA-University of Washington Herbarium
WI-University of Wisconsin Freckmann Herbarium
eNature Abstract (National Wildlife Federation)
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