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Arctic rock-cress facts for kids

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Arctic rock-cress
Scientific classification
Genus:
Arabidopsis
Species:
arenicola
Synonyms
  • Arabis arenicola (Richardson ex Hook.) Gelert
  • Arabis arenicola var. pubescens (S. Watson) Gelert
  • Arabis humifusa (J. Vahl) S. Watson
  • Arabis humifusa var. pubescens S. Watson
  • Cardaminopsis arenicola Á. Löve & D. Löve
  • Eutrema arenicola Richardson ex Hook.
  • Parrya arenicola (Richardson ex Hook.) Hook.
  • Sisymbrium humifusum J. Vahl

Arabidopsis arenicola, the Arctic rock-cress, is a plant species native to the northeastern part of North America. It has been reported from Greenland, Labrador, Nunavut, Northwest Territories, Québec, Ontario, Manitoba, and Saskatchewan. It grows on sandy or gravely beaches or stream banks at elevations below 1,500 metres (4,900 ft).

Arabidopsis arenicola is a perennial herb up to 30 centimetres (12 in) tall, usually hairless or almost hairless. Basal leaves are up to 6 centimetres (2.4 in) long; stem leaves up to 2.5 millimetres (0.098 in) long. Flowers are white, up to 10 millimetres (0.39 in) across. Fruits are straight, smooth, cylindrical or slightly flattened, up to 3 centimetres (1.2 in) long.

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