No records are tagged to Bihar specifically yet. These are the plants documented for East India — the region it sits in. State-level records are being added; practice varies within a region, so treat this as a starting point rather than a local list.
अमलतास
अमलतास
Cassia fistula
Yellow chandeliers in May, when the city most needs something to look at.
चौलाई
चौलाई
Amaranthus tricolor
The monsoon green that grows itself — heat-proof, rain-proof, ready in a month.
मोगरा
मोगरा
Jasminum sambac
A pot by an open window does more for a summer evening than any air freshener.
सुपारी
सुपारी
Areca catechu
Slim palm of the wet south-west and north-east, grown in dense stands.
सुपारी
सुपारी
Areca catechu
The slender betel-nut palm of the wet coasts, grown in dense shaded gardens.
अर्जुन
अर्जुन
Terminalia arjuna
A riverbank giant with pale bark — a campus or park tree, not a pot.
अर्जुन
अर्जुन
Terminalia arjuna
A riverbank giant with pale bark — a tree for a campus or a colony park, not a…
पेठा
पेठा
Benincasa hispida
The big white-waxed gourd of the south, stored for months after harvest.
अशोक
अशोक
Saraca asoca
Orange flower clusters straight off the trunk — a sacred tree, now threatened.
सीता अशोक
सीता अशोक
Saraca asoca
The true ashoka — orange flower clusters on a small shade-loving tree of wet forest.
कागजी नेमु
कागजी नेमु
Citrus limon var.
The thin-skinned Assam lemon, fragrant enough to scent a whole kitchen.
बेल
बेल
Aegle marmelos
A slow, tough native tree for a hot courtyard, with fruit that makes the summer sherbet.
बहेड़ा
बहेड़ा
Terminalia bellirica
The third triphala fruit, from a broad-crowned tree of dry deciduous forest.
गुलमेहंदी
गुलमेहंदी
Impatiens balsamina
A monsoon annual of verandah pots, with seed pods children cannot leave alone.
बांस
बांस
Bambusa balcooa
The fastest usable material on earth; one clump supplies poles for years.
बांस करील
बांस करील
Dendrocalamus hamiltonii
The north-eastern shoot bamboo — fermented shoots are a regional staple.
केला
केला
Musa acuminata
A single sucker in a corner gives shade, cooking leaves and, in time, fruit.
बरगद
बरगद
Ficus benghalensis
The tree that becomes a grove; only for parks, campuses and village greens.
तेजपत्ता
तेजपत्ता
Cinnamomum tamala
The tejpatta of the sub-Himalayan tract — three-veined leaves, straight off the tree.
पान
पान
Piper betle
The paan vine — grown in shaded enclosures across Bengal and the east.
भृंगराज
भृंगराज
Eclipta prostrata
A low monsoon weed of wet ground, gathered for hair oil for as long as anyone remembers.
भूमि आमला
भूमि आमला
Phyllanthus niruri
A tiny monsoon herb that appears in every wet pot, with fruit strung under the leaf.
भूत जोलोकिया
भूत जोलोकिया
Capsicum chinense
The ghost chilli of Nagaland — a genuine regional speciality, and ferocious.
बिलिम्बी
बिलिम्बी
Averrhoa bilimbi
Sour fruit straight off the trunk, in constant supply on the wet coasts.
करेला
करेला
Momordica charantia
A tough climber that fruits through the worst humidity of the year.
उड़द
उड़द
Vigna mungo
A short monsoon pulse, sown between crops as much as for the dal.
लौकी
लौकी
Lagenaria siceraria
A monsoon climber that will roof a terrace in eight weeks given a frame.
बोगनवेलिया
बोगनवेलिया
Bougainvillea glabra
Thrives on being ignored — the more you neglect it, the harder it flowers.
ब्राह्मी
ब्राह्मी
Bacopa monnieri
A creeping marsh herb happy in a wide bowl of wet soil — the one plant you cannot…
बैंगन
बैंगन
Solanum melongena
A long-season crop that rewards a big pot and steady feeding.
काजू
काजू
Anacardium occidentale
A coastal tree that fruits on poor laterite where almost nothing else does.
सरू
सरू
Casuarina equisetifolia
The coastal shelterbelt tree of the east and south — fast and salt-proof.
पटेरा
पटेरा
Typha angustifolia
Brown flower spikes over strap leaves; the reed that cleans a village pond.
चम्पा
चम्पा
Plumeria rubra
Grows from a bare cutting pushed into dry soil; scents a whole terrace.
चम्पा
चम्पा
Magnolia champaca
Orange-yellow flowers whose scent carries across a whole garden at dusk.
गुड़हल
गुड़हल
Hibiscus rosa-sinensis
Flowers nearly all year in a warm city, and sunbirds find it within a week.
अपराजिता
अपराजिता
Clitoria ternatea
Blue butterfly pea — a light climber that fixes nitrogen and makes blue tea.
गूलर
गूलर
Ficus racemosa
Figs in bunches straight off the trunk, feeding birds, bats and monkeys.
लाल मुर्गा
लाल मुर्गा
Celosia argentea
Velvet crested heads that hold colour for weeks, in sun or half shade.
नारियल
नारियल
Cocos nucifera
The tree the coasts are built on — water, kernel, oil, thatch and shade.
अरबी
अरबी
Colocasia esculenta
Big-leaved and happy in a wet corner; corms below, edible leaves above.
नरकुल
नरकुल
Phragmites karka
The tall reed of Indian riverbanks, and the standard plant for a reed-bed filter.
पीला गुलमोहर
पीला गुलमोहर
Peltophorum pterocarpum
Yellow flower spires and copper seed pods; the summer partner to the gulmohar.
कुंद
कुंद
Jasminum multiflorum
A soft-haired jasmine that flowers through the cool months on a low wall.
धनिया
धनिया
Coriandrum sativum
Bolts in heat, thrives in the cool months. Sow every fortnight for a steady supply.
लोबिया
लोबिया
Vigna unguiculata
Pods, beans and green manure from one undemanding monsoon plant.
चांदनी
चांदनी
Tabernaemontana divaricata
Neat glossy shrub with pinwheel white flowers; the easiest good hedge there is.
खीरा
खीरा
Cucumis sativus
Fast, thirsty and best trained up a net where air can move around it.