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NIS - libdoc.who.int - World Health Organization

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WHO monographs on medicinal plants commonly used in the Newly Independent States (<strong>NIS</strong>)<br />

Description<br />

Shrub or small tree, deciduous, thorny, 1.5–5(10) m tall, with a lifespan of<br />

5–20 years. Extensive root system with nitrogen-fixing nodules. Stems,<br />

many stout branches, round greyish-green crown, brown or black rough<br />

bark, thorny grey twigs. Leaves, alternate, almost sessile, linear to lanceolate,<br />

enrolled margins, dark green on the upper surface, silver-grey on the<br />

lower surface, main central vein prominent, 2–8 cm long, up to 8 mm<br />

wide. Dioecious, anemophilous. Flowers, unisexual; male flowers in catkin-like<br />

spikes, 2-sepalled calyx, brown-spotted ovate sepals, 4 stamens<br />

and no corolla; female flowers in short racemes of 2–5 flowers at the axils<br />

of the small branches, one pistil; calyx is a tight tube clasping the ovary<br />

with erect, inward-inclined tips, brown and reed-like on the outside. The<br />

flowers are covered with brownish scaly hairs. The pollinate greenish<br />

flowers appear before the leaves. Fruits, oval drupes, 3–11 mm long,<br />

3–5(9) mm in diameter, turn yellow to orange when mature and persist<br />

through w<strong>int</strong>er. Seeds, ovate-oblong, 3–7 mm long, 3–5 mm in diameter,<br />

dark brown to black, shiny (4, 8, 9, 20, 22, 27–32).<br />

Plant material of <strong>int</strong>erest: ripe fresh berries<br />

General appearance<br />

The fruit is an oval, ovoid or subglobose drupe, with or without peduncle.<br />

The fruit contains an embryo encased in a seed coat that is surrounded by<br />

a thin seed sac or pericarp, all of which is enclosed in the hypanthium<br />

(fleshy portion of the fruit). The shape and colour of the fruits vary. Length<br />

between 3.5 and 11 mm and diameter up to 8.8 mm. The colour varies<br />

from yellow or bright orange to reddish orange or brownish orange. The<br />

content of carotenoids is higher in reddish-orange fruits. The fruits are<br />

easily crushed. The seed is oblong, smooth, shiny, with a longitudinal furrow,<br />

colour ranges from light or dark brown to nearly black. The average<br />

weight of 100 seeds is 1.6–2.1 g, and that of 100 berries is 57–96 g. Harvesting<br />

by removing the pedicel from the fruit, rips the epidermis, exposes<br />

fruit flesh and results in loss of juice from the fruit (4, 9, 33–35).<br />

Organoleptic properties<br />

Odour: light and pleasant; taste: acid, pineapple-like (9, 33, 34, 36).<br />

Microscopic characteristics<br />

The hypanthium, a false fruit, consists of epicarp and mesocarp. The epicarp<br />

has polygonal or polygonal-oval cells with straight irregularly thickened<br />

walls and it is confluent with the exterior of the peduncle. The epider-<br />

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