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Tripleurospermum maritimum (Linnaeus) W. D. J. Koch subsp. phaeocephalum (Ruprecht) Hämet-Ahti [family COMPOSITAE]

Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 19,
Names
Tripleurospermum maritimum (Linnaeus) W. D. J. Koch subsp. phaeocephalum (Ruprecht) Hämet-Ahti [family COMPOSITAE], Acta Bot. Fenn., 75: 9. 1967
Matricaria inodora Linnaeus var. phaeocephala Ruprecht [family COMPOSITAE], Fl. Samojed. Cisural., 42. 1845
Matricaria ambigua (Ledebour) Krylov [family COMPOSITAE]
Matricaria maritima Linnaeus subsp. phaeocephala (Ruprecht) Rauschert [family COMPOSITAE]
Matricaria maritima var. phaeocephala (Ruprecht) Rauschert [family COMPOSITAE]
Tripleurospermum hookeri Schultz-Bipontinus [family COMPOSITAE]
Tripleurospermum phaeocephalum (Ruprecht) Pobedimova [family COMPOSITAE]
Treatment Author(s)
Luc Brouillet
Information
Phyllaries broadly triangular, scarious margins blackish brown, 0.4–1 mm wide. Cypselae: resin gland lengths usually little more than twice widths. 2n = 18.
Phenology
jul-aug (summer), sep-oct (fall)
Altitude range
0–50 m;
Distribution
Greenlandarctic Eurasia.USA AlaskaCanada Man.Canada N.W.T.Canada NunavutCanada Ont.Canada Que.Canada Yukon
Discussion
Subspecies phaeocephalum occurs along the low Arctic shore (both continental and insular) from Alaska to Quebec; it does not penetrate north into the Canadian Arctic Archipelago; it does not reach Labrador; it is present in Greenland. If treated as a species, the name T. hookeri Schultz-Bipontinus has priority (N. N. Tzvelev 2002b).
Tripleurospermum maritimum (Linnaeus) W. D. J. Koch subsp. phaeocephalum (Ruprecht) Hämet-Ahti [family COMPOSITAE]
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