Appearance
"Leucanthemum vulgare" is a perennial herb one to three feet high by 1 foot wide. The stem is mostly unbranched and sprouts laterally from a creeping rhizomatous rootstock.The leaves are dark green on both sides. The basal and middle leaves are petiolate, obovate to spoon-shaped, and serrate to dentate. The upper leaves are shorter, sessile, and borne along the stem.
"Leucanthemum vulgare" blooms from late spring to autumn. The small flower head, not larger than 5 centimetres, consists of about 20 white ray florets that surround a yellow disc, growing on the end of 1 to 3 ft tall stems. The plant produces an abundant number of flat seeds, without pappus, that remain viable in the soil for 2 to 3 years. It also spreads vegetatively by rhizomes.
Naming
"Leucanthemum vulgare" became an introduced species via gardens into natural areas in parts of the Canada, United States, Australia, and New Zealand, where it is now a common weed. In some habitats it is an invasive species forming dense colonies displacing native plants and modifying existing communities, and is classified as a noxious weed.References:
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