Convolvulaceae - morning-glory family
Research Scientist and Research Institute Director (retired) and presently Honorary Research Associate, Agriculture and Agri-Food Canada,
Ottawa, Ontario K1A 0C6, Canada
Awarded the George Lawson Medal by the Canadian Botanical Association in 2006.
Awarded the Faculty of Macdonald, McGill University, Most Distinguished Alumni Award on October 18, 2014.
Read his biography "The Real Weed Man" available in print and ebook.
Convolvulus arvensis L., field bindweed, liseron des champs
Prostrate or climbing perennial with a deep and extensive root system; allogamous; stems often more than 10 feet (30 dm.) long; stems often twine around other plants; flowers from white to pink; throughout our range, with the possible exception of Prince Edward Island and Newfoundland; cultivated land, grain fields, meadows, waste places, and roadsides; introduced from Europe.
Cuscuta campestris Yunck., field dodder, cuscute des champs
Annual plant, lacking chlorophyll, that is parasitic on other plants; stems are orange or reddish; small white or cream-coloured flowers are single or in clusters; various parasitic dodders are present throughout our area; native to North America. Seeds germinate in the soil and produce slender stems that lack chlorophyll. Unless the stem encounters a host plant within a short period, it withers and dies. If the young stem soon comes in contract with a living plant, it twines around it and develops suckers that penetrate the plant. Food is received through these suckers and the dodder loses all contact with the soil.
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