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An erect, branched (occasionally unbranched) annual herb, green, more or less coated with white mealy pubescence. Cotyledons petiole, lanceolate-linear, mealy, bluish-grey with a reddish tinge beneath, 6–12 mm long and 1.5–4 mm broad (Korsmo et al., 1981). Roots stout and tapering at the end. Many branches may emerge from main tap root system. Epidermal cells are more or less polygonal in shape. Fewer, smaller stomata on upper compared to lower leaf surface (Srivastava, 1967). Stems erect, branched towards apex, 0.2–2 m tall, glabrous, furrowed, often with red or light-green streaks, branching varies from slight to extensive. Leaves alternate, simple ovate to rhomboid-oval, uppermost leaves mostly lanceolate, sometimes linear and sessile, glabrous, usually white with a mealy-covering, particularly on young leaves, all leaves densely covered with small, utriculate hairs. Inflorescence in irregular spikes clustered in panicles at the ends of the branches. Flower perfect, small, sessile, green;calyx of 5 sepals that are more or less keeled and nearly covering the mature fruit;petals 1;stamens 5, pistil 1, with 2 or 3 styles, ovary single-celled, attached at right angles to the flower axis. Fruits is an achene (seed covered by the thin papery pericarp). Seed nearly circular in outline, oval in cross section, sides convex, glossy, black, mean size 1.5 mm x 1.4 mm in diameter, weight 1.2 mg.

Related invasive species

  • Chenopodium album

Related Farm Practice

  • Vineyards
  • Orchards
  • Light
  • Pastures

Related location

  • Japan
  • India
  • Pakistan
  • New Zealand
  • South Africa
  • Canada
  • Europe
  • Spain
  • Mexico
Impact

C. album seems to grow most vigorously in temperate and subtemperate regions, but it is also a potentially serious weed in almost all winter-sown crops of the tropics and subtropics. It is a common weed in about 40 crops in 47 countries, being most frequent in sugarbeet, potatoes, maize and cereals. It is one of the principal weeds of Canada and Europe, and in India, Mexico, New Zealand, Pakistan and South Africa is ranked amongst the six most serious weeds. In temperate climates, it is a problem in almost all summer- and winter-sown crops.

Has Cabi datasheet ID
12648
Hosts

C. album seems to grow most vigorously in temperate and subtemperate regions, however it is also a potentially serious weed in almost all winter-sown crops of the tropics and subtropics. It is a common weed in about 40 crops in 47 countries, being most frequent in sugarbeet, potatoes, corn and cereals. It is one of the principal weeds of Canada and Europe, and in India, Mexico, New Zealand, Pakistan and South Africa is ranked amongst the six most serious weeds (Holm et al., 1977). In temperate climates, it is a problem in almost all summer- and winter-sown crops.
In subtropical regions it is most common in wheat, chickpea, barley, winter vegetables, horticultural gardens, maize, sunflower and soybean. In addition, it is an important weed of tea and upland rice in Japan, citrus orchards and vineyards in Spain, cotton, soyabean and strawberries in the former Soviet Union, cotton, pastures and peanuts in the USA, rice in Mexico and tobacco in Canada (Holm et al., 1977). In Europe and America, it is a problem weed in maize, soybean, wheat, barley, potato and all vegetable crops.

Oss tagged
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