Discoidea

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Matricaria discoidea - Pineapple Weed

Hazards

Food

Other Uses

Medicinal Uses

Description

Synonyms

  • Artemisia matricarioides auct. non Less. [E-flora]
  • Chamomilla suaveolens (Pursh) Rydb. [E-flora]
  • Lepidanthus suaveolens (Pursh) Nutt. [E-flora]
  • Lepidotheca suaveolens (Pursh) Nutt. [E-flora]
  • Matricaria matricarioides [Turner&Kuhnlein][PCBC][E-flora]
  • Matricaria suaveolens (Pursh) Buchenau, non L. [E-flora]
  • Santolina suaveolens Pursh [E-flora]
  • Tanacetum suaveolens (Pursh) Hook. [E-flora]

General "Erect, multibranched, hairless" [WildPNW] Annual. [HNW][WildPNW] Up to 1 ft tall. [WeedsW]
Flowers "Flower heads 1 or many on 1-2 in. stalks." [WildPNW] "heads greenish-yellow;" [HNW] Ray flowers lacking.[WeedsW] "pineapple-shaped flower cones above the lacy pinnate leaves." [PSW] "disk flowers..., 4-toothed, 1.2-1.5 mm long".[IFBC] [E-flora]
Fruits "Achenes, veined, beakless..." [PCBC] "glabrous; pappus a short, membranous crown."[IFBC] [E-flora]
Leaves "Basal leaves usually withered by flowering time;"[PCBC] "leaves finely pinnately dissected;" [HNW] "stem leaves alternate...,1-3 times divided into short, very narrow segments."[IFBC] [E-flora]
Stem "stems leafy, usually branched".[PCBC2004]
Root from a fibrous root.[IFBC] [E-flora]
Properties A pineapple aroma [Seymour FNE] when crushed. [WeedsW]
Habitat "Pineapple weed specializes in hard-packed dirt." [Seymour FNE] Tolerant of trampling. [DPL Watts] Moist waste places. [WildPNW] "rarely solitary...Often found growing heneath the existing vegetation." [Seebeck BTWPC]
Range Common. [PCBC] common throughout BC.[IFBC] [E-flora] North America.[WeedsW][WildPNW] Europe. [WildPNW] Pacific States. [PSW] "It has also become common and naturalised in Britain [4]" [Wiki]
Status Native. [WeedsW][WildPNW]
Similar Species

Ethnobotany

Pharmacology

  • Analgesic. [Moerman NAEth]
  • Antiseptic (Tea) [Wildman]
  • Carminative. [Moerman NAEth][Wildman]
  • Laxative. [Moerman NAEth]
  • Nervine (Tea) [Wildman]
  • Tonic (Plant) [Moerman NAEth]
  • "It [flower tea] also has strong anti-bacterial properties and is reputed to have anti-inflammatory effects. "[Jones TDFB]

Phytochemistry

Essential Oil "The oil yield obtained by hydrodistillation was 0.1% (w/w) on dry weight basis." [Lopes&Kolodziejczyka]

  • myrcene (28.5% of essential oil) [Lopes&Kolodziejczyka]
  • (E)-β-farnesene (23.4% of essential oil) [Lopes&Kolodziejczyka]
  • germacrene D (6.8% of essential oil) [Lopes&Kolodziejczyka]
  • geranyl isovalerate (6.4% of essential oil) [Lopes&Kolodziejczyka]
  • (Z)-en-yn-dicycloether (8.1% of essential oil) [Lopes&Kolodziejczyka]
  • trans-β-farnesene [Arak et al.]
  • herniarin. (Coumarin)[Arak et al.]

Cultivation

"Don't be shy if you decide to transplant this herb. Dig one up during early spring, then stomp it into a hole with the heel of your shoe. The soil around the roots should be as tightly compressed as possible."[Ecoherb Tilford] "The plant favours the edges of inhabited areas and likes to pop up in compacted soil." [Jones TDFB]

Common Companion Herbs: "Yarrow, Mullein, Dandelion, Dock..."[Ecoherb Tilford]
Companion Plant: It's also reported a good companion plant for ailing flora. [Schofield]

Propagation

"Seed - sow spring or late summer in situ. Germination should take place within 3 weeks." [PFAF]


Related Sp.

MATRICARIA

Family: << | Aster? | >>

Annual, sometimes aromatic. Stem: branched, erect or decumbent. Leaf: alternate, irregularly 2–3-pinnately lobed; segments linear; petiole short or 0. Inflorescence: heads radiate or discoid, 1–3; receptacle conic, epaleate; phyllaries in 2–3 unequal series, margins scarious. Ray flower: 0 or 10–25; ray white. Disk flower: many; corolla yellow, tubular, narrowed distally; anthers minute, tip ovate, base rounded or ± cordate; style short, branches truncate with bushy tips. Fruit: cylindric to obconic, gelatinous when wet (in California), 3–5-ribbed; pappus a narrow crown or 0.
7 species: Europe, Asia, North America. (Greek: womb, describing medicinal use) [Brouillet 2006 FNANM 19:540–542] Chamomilla nomenclaturally superseded by Matricaria. [Jepson]

Local Species;

  1. Matricaria discoidea - pineapple weed [E-flora][PCBC][TSFTK]
  2. Matricaria recutita? - wild chamomile [E-flora][PCBC]

References


Caution
The information presented on this site is provided for educational purposes. Self diagnosis and treatment, without due diligence, could be harmful and is not encouraged. Some information & images may be copyright. Every effort has been made to present the information in the spirit with which it was originally presented. Some data has been omitted for legal and/or practical consideration. There is some data not covered in the scope of this project, including, but not limited to, cell culture and large-dose animal studies. I have made comparisons and links between related species which may later prove erroneous. I have not verified the information for accuracy and I accept no responsibility for its authenticity. Many of the plants presented are poisonous, have poisonous properties, or could cause illness through misuse, allergic reaction, drug interactions and environmental contaminants. Please use caution and mindfulness when harvesting plants for any use.

Page last modified on 02-11-2016