Species Details
Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium Read more about this collection »
LeavesGreyish-green; hairy; divided into leaflets 2-3 times (pinnate); lance-shaped segments (Moss, 1983). 2-9 cm long (Johnson et al., 1995).
FlowersClusters; at stem tips; 4 petals; yellow or whitish; 0.8-1.5 mm long (Johnson et al., 1995).
Fruits and SeedsDry dehiscent pod (silique); linear; 15-30 mm long; 0.5-1 mm wide; erect; slightly curved; pedicels spreading; 7-12 mm long (Moss, 1983). Stalks 7-12 mm long; seeds in 1 row (Johnson et al., 1995).
Scientific Name
Descurainia sophia (L.) Webb ex Prantl
Common Name
flixweed; tansy mustard (Johnson et al., 1995).
General Description
An annual weed with erect stems 20-100 cm tall that are branched, greyish-green and have star-shaped hairs; flowers are yellow or whitish (Johnson et al., 1995).
Leaves
Greyish-green; hairy; divided into leaflets 2-3 times (pinnate); lance-shaped segments (Moss, 1983). 2-9 cm long (Johnson et al., 1995).
Flowers
Clusters; at stem tips; 4 petals; yellow or whitish; 0.8-1.5 mm long (Johnson et al., 1995).
Fruits and Seeds
Dry dehiscent pod (silique); linear; 15-30 mm long; 0.5-1 mm wide; erect; slightly curved; pedicels spreading; 7-12 mm long (Moss, 1983). Stalks 7-12 mm long; seeds in 1 row (Johnson et al., 1995).
Phenology
March to July (JSTOR).
Range/Distribution
Alberta: More dense in southern half but found throughout province (Canadensys). Introduced in CAN (BC, MB, NL, NS, SK, NT, ON, PE, QC, YT); USA (AK, AZ, AR, CA, CO, CT, DE, GA, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA,…
Alberta: More dense in southern half but found throughout province (Canadensys). Introduced in CAN (BC, MB, NL, NS, SK, NT, ON, PE, QC, YT); USA (AK, AZ, AR, CA, CO, CT, DE, GA, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY) (USDA).
Citation
Page Citation for Descurainia sophia (L.) Webb ex Prantl
Page Citation
"Species Details - Descurainia sophia (L.) Webb ex Prantl, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-7973. Accessed 09 May. 2024.
Specimen Information
There are 97 specimens of this Species.
115932 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Edmonton, University of Alberta
Date Collected2006-06-23
116114 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedEurope: Poland, Kleszczow
Date Collected2006-07-11
116312 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, British Columbia, Keremeos
Date Collected1981-06-16
119256 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Rumsey Ecological Reserve
Date Collected1997
119939 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Jasper National Park
Date Collected1964-08-01
122035 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Crescent Falls Provincial Recreation Area
Date Collected2009-07-24
57883 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Northwest Territories, Yellowknife Bay
Date Collected1947-06-25
21422 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Northwest Territories, Mills Lake
Date Collected1956-08-15
21421 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Northwest Territories, Hay River
Date Collected1956-08-02
9643 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Northwest Territories, Norman Wells
Date Collected1953-07-20
53232 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Northwest Territories, Heart Lake
Date Collected1972-06-19
125338 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Rumsey Ecological Reserve
Date Collected1982-06-15
125339 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Twin River Heritage Rangeland Natural Area
Date Collected1983-06-19
127084 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Kinsella Ranch
Date Collected2010-07-31
105812 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Suffield Training Area
Date Collected1995-06-05
105813 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Suffield Training Area
Date Collected1995-06-29
105815 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Suffield Training Area
Date Collected1995-06-16
40919 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Spring Creek
Date Collected1969-07-27
40567 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, St. Albert
Date Collected1971-10-02
39387 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Grande Prairie
Date Collected1971-06-01
44841 - Descurainia sophia (L.) Webb ex Prantl
University of Alberta Vascular Plant Herbarium
Common Nameflixweed; tansy mustard (Johnson et al., 1995).
Place CollectedNorth America: Canada, Alberta, Cadomin
Date Collected1973-07-07