Achillea alpina

Linnaeus

Sp. Pl. 2: 899. 1753.

Common names: Siberian yarrow achillée de Sibérie
Synonyms: Achillea sibirica Ledebour
Treatment appears in FNA Volume 19. Treatment on page 494. Mentioned on page 493.

Perennials, 50–80 cm (fibrous-rooted and rhizomatous). Stems 1, erect, branched or unbranched distally, sparsely villous to glabrate. Leaves sessile; blades linear-lanceolate to oblong-lanceolate, 5–10 cm × 4–8 mm, (margins serrate to doubly serrate, teeth antrorse) faces sparingly villous or glabrate. Heads 10–25+, in crowded, simple or compound, corymbiform arrays. Phyllaries 20–30 in ± 3 series, (light green, margins light to dark-brown, midribs dark green or yellow-green) lanceolate to oblanceolate, faces (abaxial) sparingly tomentose. Receptacles convex; paleae oblong, 3.5–4.5 mm (apices dark, rounded). Ray-florets 6–8 (–12), pistillate, fertile; corollas white, laminae 1–3 × 2–3 mm. Disc-florets 25–30+; corollas grayish or yellowish white, 2–3 mm. Cypselae 2.5 mm. 2n = 36.


Phenology: Flowering early Jul–early Sep.
Habitat: Meadows, forest edges, roadsides, lakeshores, along streams, moist soils
Elevation: 100–600 m

Distribution

V19-825-distribution-map.gif

Alta., B.C., Man., N.W.T., Ont., Que., Sask., Yukon, Alaska, Minn., N.Dak., Asia

Discussion

Achillea alpina has been reported (as A. sibirica) as occurring in New Jersey and Missouri. Specimens examined from those states were from plants cultivated in botanical gardens; there is no evidence that Achillea alpina has escaped in those states.

Selected References

None.

Lower Taxa

None.

... more about "Achillea alpina"
glabrate +  and sparsely tomentose +
not tailed +  and obtuse +
unequal +
scarious +
corymbiform +, compound +  and simple +
indeterminate +  and determinate +
Debra K. Trock +
Linnaeus +
decurrent +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
linear-lanceolate;oblong-lanceolate +
4mm;8mm +
Siberian yarrow +  and achillée de Sibérie +
zygomorphic +, actinomorphic +  and (3-)5-merous +
yellowish white +, grayish +  and white +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
winged +  and monomorphic +
oblong +  and obovate +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Man. +, N.W.T. +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Minn. +, N.Dak. +  and Asia +
100–600 m +
tomentose +, glabrate +  and villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Meadows, forest edges, roadsides, lakeshores, along streams, moist soils +
in subcapitate clusters +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
campanulate;hemispheric +
orbiculate +  and suborbiculate +
cauline +  and basal +
deltate +
entire +  and dentate +
unequal +
2-carpellate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
membranous +
persistent +
Flowering early Jul–early Sep. +
20 +  and 30 +
subequal +  and unequal +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
unbranched +  and branched +
appendaged +  and truncate +
papillate +
Achillea sibirica +
Achillea alpina +
Achillea +
species +
campanulate +
flattened +
50 cm500 mm <br />0.5 m <br /> (80 cm800 mm <br />0.8 m <br />) +
shrub +  and subshrub +