Omalotheca sylvatica

(Linnaeus) Schultz-Bipontinus & F. W. Schultz

in F. W. Schultz, Arch. Fl., 311. 1861.

Common names: Woodland Arctic-cudweed gnaphale des bois
Illustrated
Basionym: Gnaphalium sylvaticum Linnaeus Sp. Pl. 2: 856. 1753
Treatment appears in FNA Volume 19. Treatment on page 440. Mentioned on page 439.

Plants 10–70 cm. Leaves basal and cauline; blades 1-nerved, linear to narrowly oblanceolate or lanceolate, 2–8 cm × 2–10 mm, distal cauline smaller, linear, faces bicolor, abaxial gray, silvery sericeous, adaxial green, glabrescent. Heads (20–90) in loose, spiciform (leafy-bracteate, interrupted) arrays (4–35 cm, occupying 1/3–5/6 plant heights, simple or branched at bases, primary axes mostly visible). Involucres campanulo-turbinate, 5–6.5 mm. Phyllaries some or all with conspicuous dark brown spot distal to middle. Cypselae cylindric to fusiform, minutely strigose; pappus bristles basally connate, falling together. 2n = 56.


Phenology: Flowering Jul–Sep(–Oct).
Habitat: Open woods, boggy woods, rocky slopes, clearings, fields, borders of woods, roadsides, muddy banks, disturbed sites
Elevation: 10–500 m

Distribution

V19-727-distribution-map.gif

St. Pierre and Miquelon, B.C., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Maine, Mich., N.H., N.Y., Pa., Vt., Wis., Europe, Asia (Caucasus, Iran, Siberia).

Discussion

The circumboreal Omalotheca sylvatica may have been introduced from Eurasia (Frére Marie-Victorin 1995). Omalotheca alpigena (K. Koch) Holub and O. caucasica (Sommier & Levier) S. K. Cherepanov were treated as synonyms of O. sylvatica by A. J. C. Grierson (1975); they have been recognized as distinct species in other treatments.

Selected References

None.

Lower Taxa

None.
... more about "Omalotheca sylvatica"
Guy L. Nesom +
(Linnaeus) Schultz-Bipontinus & F. W. Schultz +
Gnaphalium sylvaticum +
Woodland Arctic-cudweed +  and gnaphale des bois +
St. Pierre and Miquelon +, B.C. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Maine +, Mich. +, N.H. +, N.Y. +, Pa. +, Vt. +, Wis. +, Europe +, Asia (Caucasus +, Iran +  and Siberia). +
10–500 m +
Open woods, boggy woods, rocky slopes, clearings, fields, borders of woods, roadsides, muddy banks, disturbed sites +
Flowering Jul–Sep(–Oct). +
in F. W. Schultz, Arch. Fl., +
Illustrated +
Compositae +
Omalotheca sylvatica +
Omalotheca +
species +