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{{SPlantbox
|familia=Asteraceae
|genus=Achillea
|common_name=Milfoil, Yarrow
|name_ref=Flora - A Gardener's Encyclopedia
|habit=herbaceous
|lifespan=perennial
|life_ref=Flora - A Gardener's Encyclopedia
|exposure=sun
|water=moderate
|Temp Metric=°F
|sunset_zones=1-24, 26, 28-45
|image=Achillea millefolium.jpg
|image_width=200
}}
'''''Achillea''''' is a genus of about 85 [[flowering plant]]s, in the family [[Asteraceae]], commonly referred to as ''yarrow''. They occur in [[Europe]] and temperate areas of [[Asia]]. A few grow in [[North America]]. These plants typically have frilly, hairy, aromatic [[Leaf|leaves]].
These plants show large, flat clusters of small [[flower]]s at the top of the stem. These flowers can be white, yellow, orange, pink or red. A number of species are popular [[garden]] plants.
{{Inc|
{{Inc|
Achillea (its virtues said to have been discovered by Achilles). Compositae. Includes Ptarmica. About 100 species, some of which are hardy herbaceous border and alpine perennials of easy culture.
Achillea (its virtues said to have been discovered by Achilles). Compositae. Includes Ptarmica. About 100 species, some of which are hardy herbaceous border and alpine perennials of easy culture.
Leaves simple or compound, often ternate: fl.-heads small, corymbose or racemose; receptacle nearly flat or convex, chaffy; ray fls. pistillate, fertile, the rays white or pink; disk fls. perfect, fertile.
Leaves simple or compound, often ternate: fl.-heads small, corymbose or racemose; receptacle nearly flat or convex, chaffy; ray fls. pistillate, fertile, the rays white or pink; disk fls. perfect, fertile.
Most of the achilleas can be grown in ordinary garden soil, preferring open sunlight and well-drained situations. Some are alpine or sub-alpine and require rock-garden conditions. These are indicated under the individual species. Dwarf kinds make carpets in dry, sunny places; large kinds suitable for wild gardens.
Most of the achilleas can be grown in ordinary garden soil, preferring open sunlight and well-drained situations. Some are alpine or sub-alpine and require rock-garden conditions. These are indicated under the individual species. Dwarf kinds make carpets in dry, sunny places; large kinds suitable for wild gardens.{{SCH}}
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==Cultivation==
==Cultivation==
===Propagation===
===Propagation===
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Propagation in spring by division, cuttings and seeds: chipfly by the first method and easily accomplished{{SCH}}.
===Pests and diseases===
===Pests and diseases===
==Species==
==Species==
[[Image:Achillea filipendula detalle corimbo.jpg|thumb|right|250px|Fernleaf Yarrow (''Achillea filipendula'')]]
*''[[Achillea abrotanoides]]''
*''[[Achillea abrotanoides]]''
*''[[Achillea ageratifolia]]'' : Balkan Yarrow, Greek Yarrow
*''[[Achillea ageratifolia]]'' : Balkan Yarrow, Greek Yarrow
*''[[Achillea talagonica]]''
*''[[Achillea talagonica]]''
*''[[Achillea taygetea]]''
*''[[Achillea taygetea]]''
*Achillea tenuifolia = synonym of ''Achillea millefolium millefolium''
*Achillea tenuifolia = synonym of ''Achillea millefolium millefolium''
*''[[Achillea tomentosa]]'' : Woolly Yarrow
*''[[Achillea tomentosa]]'' : Woolly Yarrow
*''[[Achillea wilhelmsii]]''
*''[[Achillea wilhelmsii]]''
*''[[Achillea wilsoniana]]'' : Wilson's Yarrow
*''[[Achillea wilsoniana]]'' : Wilson's Yarrow
{{Inc|
A. Ageratum, Linn. Fla. yellow. Eu.—A. ageratifolia, Benth. & Hook. (Anthemis Aizoon). Tufted, woolly, silvery gray: fls. white. May, June. Alps.—A. asplenifolia. Vent. Lvs. pinnate, smooth: fls. white. There is a red-fld. form. N. Amer.—A. atrata, Linn. Dwarf, tufted, aromatic: radical lvs. petiplate; cauline lvs. pinnatisect: fls. white. Alps.—A. aurea. Lam. Fls. golden yellow, the seeds stipitate: lvs. woolly. Aug., Sept. S. Eu. : Chrysanthemum achilleaefolium (which see).—A. decolorans, Schrad. Lvs. undivided: fls. pale yellow. July. Eu.—A. Herbarota, All. Dwarf, tufted, aromatic alpine: lvs. undivided, serrate: fls. white. May, June.—A. ligustica, All. Lvs. pinnatind: fls. white. Eu., Orient.—A. moschata. Jacq. Lvs. smooth, pinnately parted, lobes uncut: fls. white. Eu.—A. nana, Linn. Dwarf, hairy, woolly, aromatic: lvs. pinnatisect: fls. white. Spring. Eu. Used in making Chartreuse.—A. odorata, Linn. Lvs. pinnatisect; lobes cut: fls. white.—A. pectinata, Willd. Fls. pale yellow.—A. rupestris, Huter. Lvs. 1/2in. long, linear-spatulate, entire. S. Italy. B.M. 6905.—A. santolinoides. Lag. 1 ft.: lvs. pinnatisect, hairy-woolly: fls. white. July. Spain.—A. serrata, Retz. Lvs. pinnatifid, woolly: fls. white. Siberia(?).—A. Siehana, Hort. Fls. golden yellow, fragrant. Asia Minor.—A. umbellata, Sibth. Very woolly rock plant, 4-5 in.: lvs. pinnatifid; lobes oblong, bluntish, entire or serrate: fls. white. June. Greece.—A. valesiaca. Stein. Lvs. pinnately parted: fls. white. June-Aug. Eu. Other trade names are A. corymbosa, A. transylvanica and A. Huteri; none is known in hort. or botanical literature. N. Taylor
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==Gallery==
==Gallery==
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