Spergularia Rubra


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The bracts of the inflorescence are almost as large as the leaves. spergularia rubra exporter spergularia rubra supplier exporterThe sepals and petals are 3 to 4 mm. The petals are usually pink, sometimes white. There are 5 to 10 stamens. The capsule is 4 to 5 mm and about equal in size to the sepals. The seeds are 0.45 to 0.55 mm, unwinged, dark brown, subtrigonal, and more or less flattened.

Leaves, Stem, and Root The plant is annual or perennial, with a slender to somewhat woody taproot, which is smooth and somewhat sticky. spergularia rubra supplier exporter From beneath, it produces numerous 5- to 22-cm long, diffuse, decumbent or procumbent stems. The leaves are narrow, linear, and have very short, lanceolate, acute, silver, scarious stipules.

Halifax has a cool, moist, maritime climate, a type of climate that has not been examined in previous green roof research. In order to better understand the state of green roof technology in Halifax, and the associated temperature benefits in a maritime setting,

we located and categorized all existing green roofs, and measured summer roof spergularia rubra supplier temperatures on green roofs and adjacent conventional roofs. We found 41 green roofs, most of which were intensive (65%). The earliest green roof was established in 1846 (at Citadel Fortress), with the majority built in the 1970’s. On average, daytime green roof surface temperatures were 30.3 ºC; 3.5 ºC cooler than conventional surfaces.

Since many green roof benefits are a function of the vegetation layer, we also applied modular, spergularia rubra exporter extensive roof assemblies to one building to test the importance of plant functional diversity (defined by plant growth habit) in terms of temperature moderation, water capture, runoff and evapotranspiration. We used primarily native species found in local coastal barrens, as well as several others commonly used on green roofs.

The study was conducted during the spring and summer months of 2007. spergularia rubra supplier and exporter Although the temperature data presented here suggests that functional diversity had no effect on substrate temperatures, there were clear differences in water capture, runoff and evapotranspiration estimates between the different functional group diversity treatments. In general, the most diverse planting treatment captured the least amount of rain, had the largest amount of runoff but showed the greatest evapotranspiration.