Weed Science & Agronomy
INRA-Dijon
|
Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : matmt
Synonym(s) of Sc. name: Matricaria suaveolens (Pursh) Buchen. non L. Matricaria matricariodes (less.) Porter
Classification: Compositae, Dicotyledonous
Common name: pineappleweed
Synonym(s) of Common name:
Name per country: DE : Strahllose Kamille ; ES : ; FR : matricaire discoïde ; IT : camomilla falsa ; PT : ; EN : pineappleweed ; NL : schijfkamille ; DK :
Biological type: Annual
.
- Cotyledons elliptic to ovate, rounded tip, sessile.
- Leaves pinnately divided.
- Height: 5-40 cm.
- Stem stout, thick.
- Leaves lower in rosette. Later 2-3-pinnate, alternate, with lanceolate -linear segments, glabrous and very closed, dark-green. Upper leaves divided, each segment divided in narrow strips. Strongly aromatic.
- Flowers yellow-greenish in short-peduncled heads, solitary or in small terminal clusters. Ray -florets absent. Involucre semi-spherical with several rows of ovate, lengthened and light-bordered bracts. Receptacle spherical, hollow.
- Fruit light-brown. Pappus in short membranous ring.
- Plant used as decoction for greying hair; as infusion against spasms, disorders of the stomach, and for external use as an antiseptic and vulnerary.
- Populations exist which are resistant to triazines in Great Britain.
- Risk of confusion with species of Anacyclus , Anthemis and Chamaemelum , and with Matricaria perforata" Mérat and Matricaria recutita L.
- Biological type: annual.
Mistake with: Matricaria perforata , Matricaria recutita , Anacyclus , Anthemis , Chamaemelum
Ecological profile (click on flags):
Present
Present
Present
Rare
Present
Present
Present
