Tanacetum

From Gardenology.org - Plant Encyclopedia and Gardening Wiki
(Redirected from Pyrethrum)
Jump to navigationJump to search


Tanacetum corymbosum


Plant Characteristics
Lifespan: perennial, annual
Cultivation
Exposure: sun
Scientific Names

Asteraceae >

Tanacetum >


Tanacetum is a genus of about 70 species of flowering plant in the family Asteraceae, native to temperate regions of the Northern Hemisphere.Template:Fact

Common names include Tansy (Tanacetum vulgare; sometimes called Common Tansy or Garden Tansy) and Feverfew (Tanacetum parthenium); several other species are also known as tansies. Other common names include Bachelor's Buttons, Bitter Buttons, Boerenwormkruid, Buttons, Ginger Plant, Gold-buttons, Ponso, Solucanotu, Tanaceto, Tansy, Yomogi-Giku.Template:Fact

The name tansy is also sometimes given, improperly, (e.g. in the western United States) to ragwort, because in those areas ragwort is known as "tansy ragwort".Template:Fact


Read about Tanacetum in the Standard Cyclopedia of Horticulture 

Pyrethrum (a name used from the time of Dioscorides, the derivation from the Greek, much fire, referring to the acrid roots). Compositae. This name is still commonly used in garden literature and language although the genus has long been reduced to a section of Chrysanthemum. Almost every nursery catalogue offers P. roseum and its numerous varieties, which is referred by botanists to Chrysanthemum coccineum; also P. parthenifolium var. aureum, the golden feather, and P. uliginosum. (See Vol. II, p. 753.) All three of these are rather common in gardens and they are known to most lovers of hardy perennials. More recent introductions under the name Pyrethrum are P. Tchihatchewii, also spelled Tchihatcheffii, the "turfing daisy" (see Chrysanthemum Tchihatchewii, Vol. II, p. 756), and P. leucopiloides, Hausskn., a sub-alpine perennial with silvery white leaves and large yellow flower-heads. Asia Minor. Suitable for the rockery. This last species is not mentioned under Chrysanthemum.


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.



Read about Tanacetum in the Standard Cyclopedia of Horticulture 

Tanacetum (name of doubtful derivation). Compositae. Annual or perennial herbs which are odorous: lvs. alternate, variously cut: heads of small to medium-sized yellow fls. disposed in corymbs, or rarely solitary, heterogamous, disk-shaped; female fls. with 3-5- toothed, tubular corollas: achenes 5-ribbed or 3-5- angular, with a broad truncate summit, bearing a coroniform pappus or none.—Thirty-five species scattered about the northern hemisphere, of which about 7 are native to N. Amer. For cult., see Tansy.

T. adenanthum, Diels. Plant densely tufted, 6-12 in. high: lvs. finely divided, clothed with white silky hairs: fl.-heads about 1/4 in. across. W. China.—T. quercifolium, W. W Smith. Lower lvs. 4-6 in. long: fl.-heads containing about 20 yellow florets. Yunnan. CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

Do you have cultivation info on this plant? Edit this section!

Propagation

Do you have propagation info on this plant? Edit this section!

Pests and diseases

Do you have pest and disease info on this plant? Edit this section!

Species

Selected species: Tanacetum abrotanifolium (L.) Druce
Tanacetum achilleifolium (M. Bieb.) Sch. Bip.
Tanacetum argenteum (Lam.) Willd.
Tanacetum atkinsonii (C.B.Clarke) Kitam.
Tanacetum balsamita L.
Tanacetum bipinnatum (L.) Sch. Bip.
Tanacetum camphoratum Less.
Tanacetum cinerariifolium (Trevir.) Sch. Bip.
Tanacetum coccineum (Willd.) Grierson
Tanacetum corymbosum (L.) Sch. Bip.
Tanacetum densum (Labill.) Sch. Bip.
Tanacetum ferulaceum (Sch. Bip.) Walp.
Tanacetum haradjanii (Rech. f.) Grierson
Tanacetum huronense Nutt.
Tanacetum macrophyllum (Waldst. & Kit.) Sch. Bip.
Tanacetum microphyllum DC.
Tanacetum niveum
Tanacetum parthenifolium (Willd.) Sch. Bip.
Tanacetum parthenium (L.) Sch. Bip.
Tanacetum poteriifolium (Nordm.) Grierson
Tanacetum praeteritium (Horw.) Heywood
Tanacetum ptarmiciflorum (Webb) Sch. Bip.
Tanacetum vulgare L.
Sources: E+M[1] NRCS,[2] GRIN[3]

Gallery

If you have a photo of this plant, please upload it! Plus, there may be other photos available for you to add.

References

External links


  1. Cite error: Invalid <ref> tag; no text was provided for refs named EUROMED
  2. Template:NRCS Plants Profile
  3. Cite error: Invalid <ref> tag; no text was provided for refs named GRIN