| | Tripleurospermum maritimum subsp. subpolare (Pobed.) Hämet-Ahti |
| Publ. & Syn. | Tripleurospermum inodorum var. boreale Hartm., Handb. Skand. Fl., ed. 5: 2 (1849). Described from Trondheim in Sør-Trøndelag (Norway). - Tripleurospermum maritimum subsp. boreale (Hartm.) A. Pedersen, Meddel. Grønland 178, 7: 25 (1972). - Matricaria maritima subsp. borealis (Hartm.) Á. Löve & D. Löve, Bot. Not. 128: 521 (1976). |
| Notes | Elven and Solstad: Subspecies subpolare differs from the two others in involucral bracts, ligulas, and shape of the glands on fruits. The majority of Icelandic plants (AMNH, ICEL) of Tripleurospermum maritimum conform to subsp. subpolare in shape and margin of involucral bracts but not in ligula length (mostly ca. 15 mm rather than ca. 20 mm). Almost no specimens with mature fruits are present in the Icelandic collections. We still assign these plants to subsp. subpolare and this is the major plant in the Arctic in Iceland. It reaches the Arctic in Norway and northwestern European Russia mainly as an adventive but perhaps an archaeophytic one. Pedersen (1972) reported subsp. subpolare to be native in Greenland, or at least an established adventive, and to be widespread. |
| Chromosomes | 18 (2x). - Europe (N), Russia (N), Far East (N). - At least four reports. |
| Geography | European (N) - Asian (N): ICE NOR* RUS* SIB RFE GRL*. |
| Distribution |
N = F
GW = *
Ic = f
E = R
YG = r
FN = *
UN = *
YK = r
Kh = r
SF = **
CW = r
Tm = r
KP = *
[ key ] |
| Parent taxon | Tripleurospermum maritimum (L.) W.D.J. Koch |
| PAF ID | 861501b |