Search results
Results From The WOW.Com Content Network
Barren vegetation describes an area of land where plant growth may be sparse, stunted, and/or contain limited biodiversity. Environmental conditions such as toxic or infertile soil, high winds, coastal salt-spray, and climatic conditions are often key factors in poor plant growth and development. Barren vegetation can be categorized depending ...
The habitat consists of relatively dry and sparse areas with scarce vegetation, such as heather with a few trees, where it can be found both close to the soil and higher up in the vegetation. The saddle-backed bush cricket mainly eats insects and other small animals, but also plant parts.
These maps show a scale, or index of greenness, based on several factors: the number and type of plants, leafiness, and plant health. Where foliage is dense and plants are growing quickly, the index is high, represented in dark green. Regions with sparse vegetation and a low vegetation index are shown in tan.
The rarest plants typically have both a small number of individuals and a very limited geographic range. Assessments of the status of rare plants are conducted using the best available data and consider various factors, including: Total number of occurrences and the condition of these populations; Population size; Extent of range and area occupied
Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple stems and shorter height , less than 6–10 m (20–33 ft) tall.
Woody plants, shrubs or trees may occur on some grasslands—forming savannas, scrubby grassland or semi-wooded grassland, such as the African savannas or the Iberian deheza. [ 17 ] As flowering plants and trees, grasses grow in great concentrations in climates where annual rainfall ranges between 500 and 900 mm (20 and 35 in). [ 18 ]
[citation needed] Since resources are scarce in arid regions, there is selection for plants having thin and efficient cuticles to limit the nutritional and energy costs for the cuticle construction. In periods of severe water stress and stomata closure, the cuticle's low water permeability is considered one of the most vital factors in ensuring ...
Members of the Crassulaceae are found worldwide, but mostly in the Northern Hemisphere and southern Africa, typically in dry and/or cold areas where water may be scarce, although a few are aquatic. Crassulaceae are mainly perennial and have huge economic importance, internationally, as collectible, indoor and garden plants. Many species in the ...