Tragopogon porrifolius |
Tragopogon pratensis |
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common salsify, oyster plant, purple goat's beard, purple oyster salsify, purple salsify, salsifis cultivé, salsify, vegetable oyster |
Jack-go-to-bed-at-noon, meadow goat's beard, meadow salsify, salsifis des prés |
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Habit | Plants 40–100(–150) cm. | Plants (15–)40–100 cm. |
Leaves | apices straight (not recurved or coiled), faces usually glabrous. |
apices usually recurved to coiled, faces initially tomentulose to floccose, soon glabrescent. |
Peduncles | distally inflated. |
usually little, if at all, inflated (at flowering, may be inflated in fruit), initially floccose to tomentulose, soon glabrescent. |
Involucres | conic in bud. |
urceolate in bud. |
Outer | florets usually shorter than or equaling phyllaries; corollas purple. |
florets equaling or surpassing phyllaries; corollas yellow. |
2n | = 12. |
= 12. |
Tragopogon porrifolius |
Tragopogon pratensis |
|
Phenology | Flowering Apr–Aug. | Flowering May–Aug. |
Habitat | Disturbed sites | Disturbed sites |
Elevation | 200–2000 m (700–6600 ft) | 10–2100 m (0–6900 ft) |
Distribution |
AR; AZ; CA; CO; CT; DC; DE; GA; IA; ID; IL; IN; KS; KY; MA; MD; ME; MI; MO; MT; NC; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NS; ON; QC; Europe; n Africa; Australia [Introduced in North America; introduced, Pacific Islands (Hawaii)]
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AZ; CA; CO; CT; DC; DE; GA; IA; ID; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MT; NC; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SD; TN; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NF; NS; ON; PE; QC; SK; Europe [Introduced in North America]
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Discussion | Tragopogon porrifolius is occasionally cultivated in Europe and naturalized across much of North America. It grows typically in sites drier than those of T. pratensis and in sites shadier and/or moister than those of T. dubius. As currently circumscribed, it may not be monophyletic, and nomenclatural changes for the populations here may be required. In North America, T. porrifolius hybridizes with both T. dubius and T. pratensis (= T. ×neohybridus Farwell, described from North America, and T. ×mirabilis Rouy, described from Europe). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Tragopogon pratensis is naturalized across much of North America. The circumscription and infraspecific taxonomy of T. pratensis in Europe are debated, and the name T. pratensis may prove to be inaccurately assigned to the introduced populations in North America. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 306. | FNA vol. 19, p. 305. |
Parent taxa | Asteraceae > tribe Cichorieae > Tragopogon | Asteraceae > tribe Cichorieae > Tragopogon |
Sibling taxa | ||
Name authority | Linnaeus: Sp. Pl. 2: 789. (1753) | Linnaeus: Sp. Pl. 2: 789. (1753) |
Web links |
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