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FOC | Family List | FOC Vol. 20-21 | Asteraceae

171. Matricaria Linnaeus, Sp. Pl. 2: 890. 1753.

母菊属 mu ju shu

Authors: Zhu Shi, Christopher J. Humphries & Michael G. Gilbert

Akylopsis Lehmann; Chamomilla Gray; Lepidanthus Nuttall (1841), not Nees (1830), nor Nuttall (1835); Lepidotheca Nuttall.

Herbs, annual, usually fragrant; indumentum absent or of simple, basifixed hairs. Leaves 1- or 2-pinnatisect. Synflorescences cymose, usually ± flat-topped, sometimes reduced to solitary capitulum. Capitula heterogamous or homogamous, radiate or discoid. Involucres coryliform; phyllaries in 2 or 3 rows. Receptacle conical to subulate, epaleate. Marginal florets when present in 1 row, female, fertile; lamina white. Disk florets yellow or pale green, bisexual; corolla tubular, apex 4- or 5-lobed. Anther bases obtuse; apical appendage triangular. Style branches linear, apex truncate. Achenes small, terete, slightly dorsiventrally compressed, adaxially with 3-5 thin ribs. Corona small or absent or sometimes represented by an adaxial auricle particularly in ray achenes.

About seven species: N Africa, SW and temperate Asia, Europe, North America; two species in China.


1 Capitula heterogamous, with both marginal ray florets and central disk florets; ray florets white, disk florets yellow; achenes with 5 thin adaxial ribs; corona absent.   1 M. chamomilla
+ Capitula homogamous, florets all bisexual, tubular, pale yellow-green; achenes with 2 or 3 thin adaxial ribs; corona present, white.   2 M. matricarioides

Lower Taxa


 

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