Matricaria discoidea (Pineapple Weed, Wild Chamomile, Disc Mayweed)
Botanical Information
| Family | Asteraceae |
| Genus | Matricaria |
| Species | discoidea |
| Synonyms | Chamomilla suaveolens, Matricaria matricarioides |
| Category | Wildflowers & Weeds |
| Origin | Native to North America and Northeast Asia. |
| Ethnobotanical Uses Disclaimer | Edible and have been used in salads and to make herbal tea. It has been used for medicinal purposes in relief of gastrointestinal upset, infected sores, fevers and postpartum anemia. |
Details
| USDA Hardiness Ref. | |
| Canada Hardiness Ref. | |
| RHS Hardiness Ref. | |
| Height | 5 - 41 cm |
| Flowering Period | March, April, May, June, July, August, September |
Description and Growing Information
| Landscape | Garden planting. |
| Cultivation | Full sun and partial-shade. Moist and well-drained soil. |
| Habitat | Found in non-wetlands, on footpaths, trails, disturbed sites, especially in poor compacted soil or gravel. |
| Leaf Description | Pinnately dissected and sweet scent when crushed. Stem is branching from top and glabrous at top. |
| Flower Description | Single, flower-head is cone-shaped composed of dense packed corollas and lacking ray-florets. |
| Fruit Description | 3 - 4 ridged and 1 - 2 mm long. Achene, tip with shallow crown-like membranous rings (pappus). |
| Colour Description | The leaves are green. The flower-heads are a yellowish-green. The fruit is brown. |
Photographs
Scanning electron microscope image of pollen grain.