Lasurus sindicus Seeds | Sind Grass
LATIN NAME: Lasurus sindicus
COMMON NAME: Sind Grass
Plant Profile
The plant was named by the Dutch botanist Henrard, who used the spelling scindicus, and that is the form accepted in nomenclature. Range-management writing from India has used sindicus for decades instead, taken directly from Sindh, the region on the lower Indus where the grass is common. Both spellings describe the same tufted perennial, and a seed list may carry either. Its genus name is a description rather than a dedication: lasios and oura, shaggy tail, for the woolly plume.
The flowering stem rises above the tuft carrying a dense panicle, and the spikelets inside it are covered in long silky hairs, with awns that catch the light and the wind. The arrangement matters in a landscape that moves: sand collects around the base of a healthy tuft, so the crown is buried a little deeper each season, and the plant answers by extending new tillers upward from the buried nodes. A sewan clump on a stabilised dune is therefore always slightly taller than the sand line around it.
Dig below a mature clump and the system is easy to read: a woody rootstock studded with buds just under the surface, a dense mat of fine fibrous roots that binds the top half metre of sand, and a smaller number of thicker roots that descend far enough to reach moisture the surface layers never hold. That combination is why the species is used deliberately in sand-dune fixation work rather than only protected in pasture.
Science & Biotechnology
Rajasthani herders judge a pasture largely by how much sewan it carries. The grass stays palatable well into the dry season, holds its protein better than most of its neighbours, and answers grazing by tillering rather than dying, provided the stand is rested in the years it is cut. It is the backbone of the protected grazing reserves of the western districts, and the hay made from it is traded under its own name. Where the plant has been removed, dunes tend to start moving.
Uses & Benefits
Because sewan is native, drought-tolerant and palatable, it has been the subject of long-running pasture research at the arid-zone institutes around Jodhpur, where it is compared with introduced grasses for survival and yield on light sandy soils. The interest is practical: a pasture of sewan can be grazed when a sown exotic would already have failed. It is also cut and stacked as hay, and the mature flowering stems are used for thatch and for light sweeping brooms in the villages where it grows.
The grain is small, narrow and brown, held in a plume that shatters readily, so the crop is gathered by hand and dried on cloth before threshing. In poor years the grain has been ground into flour as a famine food, though it is more often kept for stock. Cleaning the fluff out of the sample is the tedious part; a light rubbing between boards and a gentle winnowing will leave seed clean enough to store in a cloth bag in a dry room.
Growing from Seed
Sewan survives on leaf anatomy as much as on rainfall. The blades are narrow, stiff and rolled inward, with stomata sunk in grooves and a waxy surface, so that the plant can shut down transpiration long before the soil is exhausted. In a dry spell the tuft looks grey and half dead and the leaves curl further; within a short time of real rain the same tuft is green and pushing new tillers. This is a C4 grass, which is what allows it to keep growing at the temperatures that shut down the cool-season species of the same plain.
The seed is chaffy, which defeats ordinary sowing equipment, so the usual practice is to rub the panicles over a sieve, then mix the fluffy seed with moist sand or dry soil and broadcast the mixture so that it trickles rather than blows. Sow into a shallow, lightly firmed tilth just ahead of the expected rains, in rows about forty centimetres apart if you intend to hoe between them, and press a little sand over the seed without burying it deeply. A seedling on an open dune loses its first leaves to moving sand long before it loses them to drought, so line fences of cut brush across the prevailing wind and keep livestock off entirely until the tufts have thickened.
Our Take
Sewan is not a plant for a rich border. It wants sand, sun, air movement and as little kindness as possible, and it rewards a dry-garden grower with a texture and a movement that no watered grass reproduces. If you are building a desert or steppe planting, Panicum turgidum is the natural companion for the same ground, Pennisetum divisum brings a bolder plume, and Sudan grass will give you rapid summer fodder while the slow perennials establish.
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