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Other plants that colonised the sea, such as salt marsh plants, mangroves, and marine algae, have more diverse evolutionary lineages. In spite of their low species diversity, seagrasses have succeeded in colonising the continental shelves of all continents except Antarctica.
Compared to the tundra, boreal forest has a longer and warmer growing season and supports increased species diversity, canopy height, vegetation density, and biomass. Unlike the tundra, which is characterized by a lack of trees and tall vegetation, [ 45 ] boreal forests support a number of different tree species. [ 46 ]
Arctic vegetation is largely controlled by the mean temperature in July, the warmest month. Arctic vegetation occurs in the tundra climate, where trees cannot grow.Tundra climate has two boundaries: the snow line, where permanent year-round snow and ice are on the ground, and the tree line, where the climate becomes warm enough for trees to grow. [7]
Native to tropical and subtropical Asia, but found worldwide as an invasive species from 45°N to 45°S Young inflorescences and shoots, cooked; roots, edible raw when chewed; ash, as a salt substitute [41] Poppy: Papaver rhoeas: Worldwide, principally in the northern temperate zones
The biodiversity of tundra is low: 1,700 species of vascular plants and only 48 species of land mammals can be found, although millions of birds migrate there each year for the marshes. [9] There are also a few fish species. There are few species with large populations.
The word derives from Ancient Greek ἅλας (halas) 'salt' and φυτόν (phyton) 'plant'. Halophytes have different anatomy, physiology and biochemistry than glycophytes. [1] An example of a halophyte is the salt marsh grass Spartina alterniflora (smooth cordgrass). Relatively few plant species are halophytes—perhaps only 2% of all plant ...
Cochlearia (scurvy-grass or spoonwort) is a genus of about 30 species of annual and perennial herbs in the family Brassicaceae.They are widely distributed in temperate and arctic areas of the northern hemisphere, most commonly found in coastal regions, on cliff-tops and salt marshes where their high tolerance of salt enables them to avoid competition from larger, but less salt-tolerant plants ...
It is known as salt sandspurry [5] or lesser sea-spurrey. [6] S. marina is a sprawling annual or sometimes perennial, with stems up to 35 cm (14 in) long. Like other sea-spurrey species, its flowers have white to pink petals, with sepals usually longer than the petals, at 2.5–4 mm (0.1–0.2 in). Plants are salt-tolerant, being found by the ...