(Hindi) : anjan
(Nepali) : papri
(Sanskrit) : anjan
(Tamil) : acha, calam, katudugu
(Trade name) : anjan
Hardwickia binata is a moderate-sized to large tree, up to 24-30 m tall, girth 1.8-3 m with a clean cylindrical bole up to 12-15 m; graceful, drooping slender branches; crown conical in early life, becoming broader later. Bark of saplings almost silvery white and smooth, gradually changing as the tree gets older to dark grey and rough with irregular vertical cracks, 1.2-2.5 cm thick, exfoliating in narrow flakes. In isolated situations, or on poor soils, the tree tends to branch low down and produce a short bole, but when grown in a fairly crowded crop on favourable soil it produces a long, straight, cylindrical bole with an elevated crown. Leaves small, 2-6 cm long by 2-3 cm wide, alternate, pinnate, almost kidney shaped and greyish-green. Flowers small, pale yellowish-green in axillary and terminal lax panicled racemes. The pod flat and samaroid, 5-7.6 x 1-1.5 cm, oblong lanceolate, coriaceous, narrowed at both ends, with parallel longitudinal veins, containing 1 seed near the apex. The seed is exalbuminous, flat, averaging 0.8 x 0.3 in, in sub-reniform, pointed at one end and rounded at the other, with a fairly hard testa.
Ecology and distributionNatural Habitat
Characteristically found in teak forests, dry savannah and degraded dry deciduous forests. The tree is distributed in isolated patches, varying in extent in the drier parts of the Indian Peninsula. Overlying soil does not have to be deep since the taproot has a capacity for growing through fissures in solid rock. H. binata thrives in a dry climate characterized by a long drought, scanty to moderate rainfall, and intense heat during the hot season. In the cold season, frosts, generally mild, occur only in certain portions of its area of distribution, particularly in low-lying areas. In its natural range, the seedlings are sensitive to drought, while frosts are not severe enough to do any harm. From the 2nd year onwards, they are immune to injury from frost. Young shoots are sensitive to fire, but recovery is good.
Native : Afghanistan, Bangladesh, Brunei, Cambodia, India, Indonesia, Iran, Laos, Malaysia, Myanmar, Nepal, Pakistan, Papua New Guinea, Philippines, Thailand, Vietnam
Altitude: 0-300 m, Mean annual temperature: 22-34 deg. C, Mean annual rainfall: 250-1500 mm Soil type: The tree grows best on sandstone, conglomerate, quartzite, granite and schist, with an overlying soil of sandy loam or, very characteristic, a quartzose reddish gravelly sand. It tolerates acidic to neutral soils.
In India, the tree is leafless, or nearly so, for a short time towards the end of the cold season, the new leaves, which are tinged with red, appearing in April. The trees are in leaf in the hot weather, and their feathery foliage is conspicuous when most other species are leafless. The light, winged pods commence falling in early May and are often carried some distance from the mother tree, the strong winds being prevalent in that season. There is some sporadic seeding every year, but gregarious seeding takes place on average every 3-5 years, according to locality.
Propagation and managementPropagation methods
H. binata has been propagated artificially both in and out of its natural habitat, partly by direct sowing and partly by transplanting seedlings, though it is generally agreed that the former is the more successful method. Fresh mature seed has a high fertility rate and germinates readily with moderate moisture. Germination is epigeous. Growth and survival of seedlings are improved by mulching and shade