Vegetation
The typical vegetation of the Inner Terai is Himalayan subtropical broadleaf forests with predominantly Sal trees covering about 70% of the national park area. Purest stands of sal occur on well drained lowland ground in the centre. Along the southern face of the Churia Hills sal is interspersed with chir pine (Pinus roxburghii). On northern slopes sal associates with smaller flowering tree and shrub species such as Beleric (Terminalia bellirica), Rosewood (Dalbergia sissoo), Axlewood (Anogeissus latifolia), Elephant Apple (Dillenia indica), Grey Downy Balsam (Garuga pinnata) and creepers such as Bauhinia vahlii and Spatholobus parviflorus.
Seasonal bushfires, flooding and erosion evoke an ever-changing mosaic of riverine forest and grasslands along the river banks. On recently deposited alluvium and in lowland areas groups of Catechu (Acacia catechu) with Rosewood (Dalbergia sissoo) predominate, followed by groups of Kapok (Bombax ceiba) with Rhino Apple trees (Trewia nudiflora), the fruits of which rhinos savour so much. Understorey shrubs of Velvety beautyberry (Callicarpa macrophylla), Hill Glory Bower (Clerodendrum sp.) and gooseberry (Phyllanthus emblica) offer shelter and lair to a wide variety of species.
Terai-Duar savanna and grasslands cover about 20% of the park’s area. More than 50 species are found here including some of the world’s tallest grasses like the elephant grass called Saccharum ravennae, Giant cane (Arundo donax), Khagra reed (Phragmites karka) and several species of true grasses. Kans grass (Saccharum spontaneum) is one of the first grasses to colonise new sandbanks and to be washed away by the yearly monsoon floods.
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Famous quotes containing the word vegetation:
“I would not have every man nor every part of a man cultivated, any more than I would have every acre of earth cultivated: part will be tillage, but the greater part will be meadow and forest, not only serving an immediate use, but preparing a mould against a distant future, by the annual decay of the vegetation which it supports.”
—Henry David Thoreau (1817–1862)
“We love to see any redness in the vegetation of the temperate zone. It is the color of colors. This plant speaks to our blood.... What a perfect maturity it arrives at! It is the emblem of a successful life concluded by a death not premature, which is an ornament to Nature. What if we were to mature as perfectly, root and branch, glowing in the midst of our decay, like the poke!”
—Henry David Thoreau (1817–1862)
“When the ground was partially bare of snow, and a few warm days had dried its surface somewhat, it was pleasant to compare the first tender signs of the infant year just peeping forth with the stately beauty of the withered vegetation which had withstood the winter ... decent weeds, at least, which widowed Nature wears.”
—Henry David Thoreau (1817–1862)