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Euphorbiaceae followed by verbenaceae, fabaceae and poaceae containing 12, 10, 8 and 8
species respectively (Table-1).
The common trees found in the sanctuary were Careya arborea, Strychnosnux-vomica, and
Aegle marmelosa, in the shrub layers Cassia tora, Andrographis paniculata, Phyllochlamys
spinosa, Justicia adhatoda, Mabab oxifolia and Lippia javanica and Ageratum conyzoides,
Sida cordifolia, Sida rhombifolia, Cyperus corymbosus, Cynodon dactylon, Tridax
procumbens, Sphaeranthus indicus, Mimosa pudica and Saccharum spontaneum in the herb
layer, respectively (Table-1).
After these species the next most frequent tree species were Diasphyrousmelanoxylon,
Azadirachtaindica,Atlantiamonophyllaand Limoniaacidissima. The species which showed
over 60% occurrence were Shorearobusta,Pterocarpusmarsupium, Careyaarborea,
Terminalia alata,Terminaliabellerica,Pterospermumheyneanum, Butea
monosperma,Caseariaelliptica,Zyzyphusmauritiana,Xyliaxylocarpa,Lagerstroemia
parviflora,Cleistanthuscollinus and Cassia fistula among trees.
Strobilanthus seaber, Datura stramonium, Abrus precatorius, Carissa spinarum, Vitex
negundo, Ocimum gratissimum and Macuna pruriengare the next most frequent shrub
species.The species which showed over 60% occurrence were Phoenix acaulis, Clerodendron
infortunatum, Lantarna camara, Helicteres isora, Rauwolfia sarpentia, Calotropics procera
and Cassia hirsuta among shrubs.
Sonchus wightianus, Kalanchoe pinnata, Imperata cylindrica, Ocimum sanctum, Ocimum
canum, Elephantopus scaber , Ludwigigia adscendens etc. among perennial herbsare the next
most frequent herb species. The species which showed over 60% occurrence were
Amaranthus spinousus, Hydrocotyl asiatica, Euphorbia hirsuta, Leucas cephalotes and Sida
acuta (Table-1).
Identification of conservation areas and species status ideally requires completeknowledge of
species composition and their distribution(Bhuyan, Khan, & Tripathi, 2003). The lack of
information on woody species composition and diversity of HWS face many problems on
biodiversity conservation(Tiwari et al., 1998). In the total 6.4 ha studied area of the
sanctuary,48 tree species were found to be lower compared to tree species recorded in other
tropical forests (Table-2).
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