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Schoenoplectus pungens is a species of flowering plant in the sedge family known as common threesquare, [2] common three-square bulrush [3] and sharp club-rush. [4] It is a herbaceous emergent plant that is widespread across much of North and South America as well as Europe , New Zealand and Australia .
The stiff stems are sharply three-angled and usually very concave between the edges. Each plant has three or fewer leaves which are short and narrow. The inflorescence is a small head of several spikelets which may be brown to bright orange, red, purplish, or pale and translucent. They have hairy edges.
The following list provides the 704 species of common trees and shrubs of flora of Sri Lanka under 95 families. The list is according to A Field Guide to the Common Trees and Shrubs of Sri Lanka, by Mark Ashton, Savitri Gunatilleke, Neela de Zoysa, M.D. Dassanayake, Nimal Gunatilleke and Siril Wijesundera. [1]
Sri Lanka needs about 3–4 million metric tonnes annually. Today 30–40% of rice is imported from India. Because Sri Lankan farmers left farming. It cultivates mostly the North Central and East provinces of Sri Lanka. The seasons are called the Maha season and the Yala season. Maha Season starts in September and ends in March.
In 2019 a total area of 16.5% [2] of Sri Lanka was forested. In 2010, it was 28.8% [3] (and 32.2% in 1995. [4]) 9.0% [5] of Sri Lanka's forests are classified as primary forest (the most biodiverse form of forest and the biggest carbon sinks on Earth). Sri Lanka's forests contain 61 million metric tons of carbon in living forest biomass (in ...
Isolepis prolifera has a caespitose (tufted) growth form, with round stems up to 90 centimetres (35 in) tall and 4 millimetres (0.16 in) wide. [3] Its leaves are reduced to red or brown sheaths around the stem, sometimes with a small free lobe up to 3 mm (0.12 in) long.
Once thought to be extinct, [4] the plant was rediscovered in 2019. [1] The Crudia zeylanica specimen located in the Daraluwa area in Gampaha, was cut down on Tuesday 11 July 2023, what had once been described as the world´s only known wild specimen of a species of legume, part of ongoing construction of a four-lane expressway.
The Sri Lanka montane rain forests represent the montane and submontane moist forests above 1,000 metres (3,300 ft) in the central highlands and in the Knuckles mountain range. [5] Half of Sri Lanka's endemic flowering plants and 51 percent of the endemic vertebrates are restricted to this ecoregion. This ecoregion is inhabited by five strict ...