Mulligan (Agriculture Canada, Ottawa, retired)
Abutilon theophrasti Medik., velvetleaf, abutilon
Annual, spreading by seeds; stems 2 to 4 feet (6 to 12 dm.)
high; flowers yellow; southern Ontario, and southward;
cultivated fields, roadsides, and waste places; introduced from
Malva pusilla SM., round-leaved mallow, mauve à feuilles rondes
Introduced from Europe. Similar to Malva neglecta Wallr., common mallow, but round-leaved mallow has smaller petals and a network of roughened ridges on the back of each nutlet. It is common in the Midwest, but is rare elsewhere.
Malva neglecta Wallr., common mallow, mauve négligée
Annual to short-lived perennial, spreading by seeds; autogamous;
flowers white to pale lilac; stems prostrate to semi-erect; most
common in eastern non-maritime areas and the far west; gardens,
farmyards, and waste places; introduced from Europe.
Click on a photo to view an enlarged image.
Common mallow: A, plant: B, flower; C, disk of nutlets; D, seed. Round-leaved mallow, E, disk of nutlets (from C. Frankton and G. A. Mulligan 1987, Weeds of Canada, Publication 948, Agriculture Canada, Ottawa, Ontario, 217 p.)