Tragopogan dubius Scop.
by Steven Martin, Native
Plants Class 2003
Common names: Yellow salsify, Western goat's beard
Family: Asteraceae
Synonymy: Tragopogon dubius Scop. ssp. major
(Jacq.) Voll., Tragopogon major Jacq.
Etymology: Greek origin of name; “tragos”
meaning goat and “pogon” meaning beard (5). Dubius means doubtful
in Latin but not sure if that applies (6).
Identification
Growth form: Erect forb/herb, 30-100cm in height.
Roots: Taprooted.
Stem: Erect, branched or simple, milky sap.
Leaves: Alternate, linear, elongate, entire, clasping,
tapered in extended triangular shape, 5-25cm long.
Inflorescence/flowers: Blooms may to july, yellow rays,
2.5-4cm long, 8-13 bracts,
Fruit: Whitish, slender achenes, 25-36mm long, narrow
beak shape.
Similar species: T. mirus, (T. miscelluls)
curved leaf tips and glabrus leaves, (T. porrifolius) has purple
corollas, (T. pratensis) phyllaries shorter than or equal to
corollas (5).
Ecology
Life history: Annual, biennial
Native/introduced: Introduced possibly as seed contaminant
from Asia and Europe (1).
Photosynthetic pathway: C3
Phenology: Growing season depends on location, flowers
May-September.
Distribution: Found in open and disturbed areas, across
continental United States and Alaska except for Southeastern US.
Uses
Provides little forage for livestock (2). Roots fried, baked or boiled
prior to flowering, leaves used in salads, root crowns eaten like artichokes,
stalks like asparagus. Diurectic tea from plant, and chewing gum from
sap (5).
References
1. ARS Germplasm Resources Information Network (GRIN). www.ars-grin.gov/
2. Wisconsin State Herbarium. www.botany.wisc.edu
3. Welsh, S.L., N.D. Atwood, S. Goodrich, L.C. Higgins. 1993. A Utah Flora.
Brigham Young University. Provo, Utah. 368-369.
4. USDA Natural Resource Conservation Service Plants Profile. http://plants.usda.gov/
5. Springer, J. 2003. Plants of Northern Arizona Forests. Ecological Restoration
Institute. Northern Arizona University, Flagstaff Arizona.168.
6. Borror, J.D. 1988. Dictionary of Word Roots and Combining Forms. Mayfield
Publishing Company; Mountain View, California. p. 33.
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