The Botany of Iceland - 01.12.1942, Page 361

THE PTERIDOPHYTA AND SPERMATOPHYTA OF ICELAND
359
Compositae.
T ubuliflorae.
382. Achillea Millefolium Linn., Sp. pl. ed. I (1753) p. 899.
K. & M., 1770, p. 210.—Babington, 1871, p. 312.—Gronlund, Isl. Fl., 1881,
p. 81,.—Stefánsson, Fl. fsl., ed. 1, 1901, p. 196.—Ibid., ed. 2, 1901, p. 222.—
O. & Gr., 1934, p. 141.
Flora Dan. tab. 737.
Icelandic: Vallhumall. Danish: Almindelig Röllike. English: Common Milfoil,
Common Yarrow.
Frequent to common in all parts, in the lowland. From the central highland
there are records from Arnardalur, Fagridalur, Grágæsadalur and Kringilsárrani
north of Vatnajökull (S.S., 1933).
Very variable: f. lanata (Spr.) Koch, the whole plant, especially when young,
densely villous. Hof in Hörgárdalur, N. ; Stóra Sandfell (?) ; at Mývatn, N.; Hrúta-
fjörður, N. f. rubriflora, with purple ray-flowers and heads clustered; found in
several places. f. magna Sond., 40—50 cm high, Ieaves longer and much broader
than in the common form ; stem much branched above; Nýjahraun, N.
LiíV-form : H.
On dry and sandy grassland, cultivated and uncultivated soil, in home-fields, on
earthen walls at farmsteads ; cultivated in churchyards.
Flor. VI—VIII; fr. mat. VII—VIII.
Max. height: 45 cm; average: 16 cm.
Geogr. area: Am. : (naturalized).—Greenl. : W. 59°55'—64°11'. E. at 65°37' (in-
troduced).-—Eur.: Fær. ; E.S.I. ; from c. 71° N. lat. throughout Europe. Caucasus.—
Asia: Siberia, western Himalaya, N. Persia.—Australia and New Zealand.
383. Achillea Ptarmica Linn., Sp. pl. ed. I (1753) p. 898.
Hornemann, Oec. Plantel. II. Opl., 1806, p. 773.—Babington, 1871, p. 312.—
Bennet, 1886, p. 69.—Stefánsson, Fl. ísl., ed. 1, 1901, p. 196.—Ibid., ed. 2,
1924, p. 222.—O. & Gr., 1934, p. 141.
Flora Dan. tab. 643.
Icelandic : Silfurhnappur. Danish : Nyse-Rollike. English : Sneezewort.
According to Babington, loc. cit., recorded by Solander, 1772, but without
locality. Has most probably been accidentally introduced, but now seems to be
naturalized, at least in S. Icel., where in some places it has been growing for many
years. See fig. 168.
Life-form: H.
In damp places, on the sides of ditches, etc.
Flor. VII—VIII; fr. mat. (VIII).
Max. height: 45 cm; average: 30 cm.
Geogr. area: Am.: (naturalized from Eur.) Newfoundland to Michigan and
Massachusetts.—Eur.: Fær.; E.S.I.; from central Scandinavia and Finland south-
ward to the Mediterranean. Caucasus.—Asia: Throughout Siberia to Yakutsk and
Amur prov., Kamchatka, Kuriles, Hokkaido. Asia Minor.