''Tanacetum'' is a genus of about 160 species of
flowering plants in the aster family,
Asteraceae, native to many regions of the
Northern Hemisphere
The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...
.
[''Tanacetum''.]
Flora of North America. They are known commonly as tansies.
[''Tanacetum''.]
Integrated Taxonomic Information System (ITIS). The name tansy can refer specifically to '' Tanacetum vulgare'', which may be called the common tansy or garden tansy for clarity.[ The generic name ''Tanacetum'' means 'immortality' in ]Botanical Latin
Botanical Latin is a technical language based on New Latin, used for descriptions of botanical taxa. Until 2012, International Code of Botanical Nomenclature mandated Botanical Latin to be used for the descriptions of most new taxa. It is still the ...
, since tansy was once placed between the burial sheets of the dead to repel vermin.
Other familiar species include costmary (''T. balsamita'') and feverfew
''Tanacetum parthenium'', known as feverfew, is a flowering plant in the daisy family, Asteraceae. It may be grown as an ornamental plant, ornament, and may be identified by its synonyms, ''Chrysanthemum parthenium'' and ''Pyrethrum parthenium' ...
(''T. parthenium'').
Tansies are mainly perennial herbs, but some are annuals and subshrubs. Some are a few centimeters tall and some reach . They vary in form, with one or more branching stems growing erect or prostrate, usually from rhizome
In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...
s. They are hairy to hairless in texture, and most are aromatic. The leaves are alternately arranged, the blades sometimes borne on petioles. They are usually deeply lobed and may have toothed edges. Most species have flowers in loose or dense inflorescences. The flower has layers of distinct phyllaries around its base and may be flat to hemispheric in shape. The flower has many yellow disc florets, sometimes over 300. Some species have ray florets in shades of yellow, or white with yellowish bases. Some species lack true ray florets but have flat yellowish disc florets that look like rays. The fruit is a ribbed, glandular cypsela, usually with a pappus on the end.[
]
Selected species
Species include:[''Tanacetum'' species records.]
Flora of China.
*''Tanacetum abrotanifolium
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (L.) Druce
*'' Tanacetum abrotanoides''
*'' Tanacetum achilleifolium'' (M. Bieb.) Sch. Bip.
*'' Tanacetum alatavicum''
*'' Tanacetum annuum'' – Moroccan Tansy, Blue Tansy
*'' Tanacetum argenteum'' (Lam.) Willd.
*'' Tanacetum atkinsonii'' (C.B.Clarke) Kitam.
*'' Tanacetum balsamita'' L. – costmary
*'' Tanacetum bipinnatum'' (L.) Sch. Bip. – Lake Huron tansy, camphor tansy
*'' Tanacetum camphoratum'' Less. – dune tansy
*'' Tanacetum cinerariifolium'' (Trevir.) Sch. Bip. – Dalmatian insect-flower, Dalmatian pyrethrum
*''Tanacetum coccineum'' (Willd.) Grierson – garden pyrethrum, painted daisy, Persian insect-flower
*'' Tanacetum corymbosum'' (L.) Sch. Bip. – scentless feverfew, corymbflower tansy
*'' Tanacetum densum'' (Labill.) Sch. Bip.
*''Tanacetum falconeri
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum ferulaceum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (Sch. Bip.) Walp.
*''Tanacetum haradjanii
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (Rech. f.) Grierson
*''Tanacetum kaschgarianum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum krylovianum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum macrophyllum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (Waldst. & Kit.) Sch. Bip. – rayed tansy
*''Tanacetum microphyllum
''Tanacetum microphyllum'' is a species of flowering plant in the aster family, Asteraceae. It is endemic to the Iberian Peninsula.Abad, M. J., et al. (2003)The phytochemical and pharmacological investigations on ''Tanacetum microphyllum''.''Rec ...
'' DC.
*''Tanacetum niveum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum parthenifolium
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (Willd.) Sch. Bip.
*'' Tanacetum parthenium'' (L.) Sch. Bip. – feverfew
*''Tanacetum pinnatum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum polycephalum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum poteriifolium
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (Nordm.) Grierson
*''Tanacetum praeteritium
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. '' (Horw.) Heywood
*''Tanacetum ptarmiciflorum
''Tanacetum ptarmiciflorum'' is a shrub with silvery leaves in the family Asteraceae. It is known as a decorative plant. It is commonly known as the silver lace bush, and its origin known to be in the Canary Islands. The species is endangered in ...
'' (Webb) Sch. Bip. – dusty-miller, silver-lace
*''Tanacetum pulchrum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*'' Tanacetum richterioides''
*'' Tanacetum santolina''
*''Tanacetum scopulorum
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*''Tanacetum tanacetoides
''Tanacetum'' is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. ''
*'' Tanacetum tatsienense''
*'' Tanacetum vulgare'' L. – common tansy, garden tansy, golden-buttons
Gallery of species
File:Tanacetum balsamita 02.jpg,
File:Tanacetumcamphoratum1.jpg,
File:Tanacetum_cinerariifolium_-_Köhler–s_Medizinal-Pflanzen-269.jpg,
File:Tanacetum_coccineum_-_Köhler–s_Medizinal-Pflanzen-037.jpg,
File:Tanacetum corymbosum2 W.jpg,
File:Tanacetum densum ssp. siasicum GotBot 2015.jpg,
File:Tanacetum ferulaceum kz1.JPG,
File:Chrysanthemum haradjanii 1.jpg,
File:Tanacetum huronense.jpg,
File:Tanacetum_macrophyllum-Stueber.jpg,
File:Tanacetum niveum 'jackpot' 3.JPG,
File:Tanacetum parthenium0.jpg,
File:Tanacetum ptarmiciflorum 'Silver Feather' 2.JPG,
File:Tanacetum siculum 0119.JPG,
File:Pietaryrtti.jpg,
References
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{{Taxonbar, from=Q54016
Asteraceae genera
Taxa named by Carl Linnaeus