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{{Taxobox

{{SPlantbox

| color = lightgreen

|familia=Asteraceae

| name = Mayweed

|genus=Matricaria

| image = Matricariachamomilla.jpg

|common_name=Mayweed

|Min ht metric=cm

| image_caption = German Chamomile (''Matricaria recutita'')

|Temp Metric=°F

| regnum = [[Plant]]ae

|jumpin=This is the plant information box - for information on light; water; zones; height; etc. If it is mostly empty you can help grow this page by clicking on the edit tab and filling in the blanks!

| divisio = [[Flowering plant|Magnoliophyta]]

|image=Matricariachamomilla.jpg

| classis = [[Magnoliopsida]]

|image_width=180

| ordo = [[Asterales]]

|image_caption=German Chamomile (''Matricaria recutita'')

| familia = [[Asteraceae]]

| genus = '''''Matricaria'''''

}}

}}

'''''Matricaria''''' is a [[genus]] of flowering plants in the sunflower family ([[Asteraceae]]). Some of the species have the common name of "mayweed," but this name also relates to plants not in this genus.  

'''''Matricaria''''' is a [[genus]] of flowering plants in the sunflower family ([[Asteraceae]]). Some of the species have the common name of "mayweed," but this name also relates to plants not in this genus.  

The [[flower]]s are radially symmetrical.The greenish yellow capitula are semi-spherical. The white ray florets can be present (''M. recutita'') or lacking (''M. discoidea''). The disc florets are 4- to 5-dentate. The receptacle is 2-3 times as high as wide. The pappus may be crown-shaped and short, or lacking.

The [[flower]]s are radially symmetrical.The greenish yellow capitula are semi-spherical. The white ray florets can be present (''M. recutita'') or lacking (''M. discoidea''). The disc florets are 4- to 5-dentate. The receptacle is 2-3 times as high as wide. The pappus may be crown-shaped and short, or lacking.

''Matricaria'' species are used as food plants by the [[larva]]e of some [[Lepidoptera]] species including [[Lime-speck Pug]].

Matricaria (mater, mother, from its use in diseases). Compositae. Matricary. Wild Chamomile. Annual or perennial weedy herbs, often heavily scented.

 

From Chrysanthemum it differs mostly in the achenes, which are 3-5-ribbed on the interior face and ribless on the back; also in having a higher or more conical receptacle, and bracts in few rather than many series. — About 25 species in many parts of the world. The foliage is much cut or divided into thread-like divisions. The matricarias are border plants in cult., and others are intro. weeds. They are commonly confounded with species of Chrysanthemum and feverfew. The M . exima plena of the trade is a form of Chrysanthemum Parthenium (var. tubulosum). It is a good hardy annual, with white double heads, growing 2 ft. tall. Matricarias demand the care given to annual chrysanthemums. The three following are annuals or biennials.

 

Describe the plant here...

 

 

== Species  ==

 

===Pests and diseases===

 

 

==Varieties==

[[Image:Matricaria_discoidea.JPG|thumb|265px|right|''Matricaria discoidea'']]

[[Image:Matricaria_discoidea.JPG|thumb|265px|right|''Matricaria discoidea'']]

* [[Chamomile]]

* [[Chamomile]]

== Reference ==

==References==

*[http://www.ingentaconnect.com/content/iapt/tax/2002/00000051/00000004/art00014 A reassessment of the nomenclature of Matricaria L. and Tripleurospermum Sch. Bip. (Asteraceae) - Applequist W.L.; ''Taxon'', 1 November 2002, vol. 51, no. 4, pp. 757-761(5)]

*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963

<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->

<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->

<!--- xxxxx  *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608  -->