Species
Coleostephus myconis
Common Name(s)
corn marigold, Mediterranean marigold
Authority
Coleostephus myconis (L.) Rchb.f.
Family
Asteraceae
Brief Description
Annual herb; rosette of spatulate, somewhat succulent leaves with few obscure teeth; erect stems with toothed leaves; petioles and stems flushed pink. Capitulum of free membranous bracts supporting cream ligulate florets and yellow disc florets. Disc conic, lacking scales or hairs. Seeds lack a pappus.
Flora Category
Vascular - Exotic
Structural Class
Dicotyledonous Herbs - Composites
Synonyms
Wikipedia records : Chrysanthemum myconis L.;
Myconia myconis (L.) Briq.;
Chrysanthemum multicaule Desf.;
Pyrethrum myconis (L.) Moench
Distribution
Mediterranean Europe but has spread to S America.
Habitat
First NZ record in wild Oct 2016, in gravel waste area in Whanganui
Features
"As a weed of crops in the Mediterranean and in
South America, there is a significant risk of accidental introduction [to USA] with crop seed or
other agricultural produce. It is also referred to as an ornamental by Edgecombe (1970)
and Marzocca et al. (1976) and could therefore be introduced deliberately.
Adverse Impact: Chrysanthemum myconis is listed by Holm et al. (1979) as a
'principal' weed in Brazil, while Marzocca et al. (1976) refer to it as an aggressive weed
of crop and pasture land. It appears to pose a significant threat to a variety of habitats in
the United States." http://wssa.net/wp-content/uploads/Coleostephus-myconis.pdf
Similar Taxa
The cream ray florets and glabrous semi-succulent leaves distinguish it from most other weedy daisies
Flower Colours
Cream,Yellow
Year Naturalised
2016
Origin
Mediterranean Europe
Reason for Introduction
Perhaps ornamental, but known as an agricultural weed in parts of South America
This page last updated on 27 Oct 2019