Pterocarpus marsupium - Asana, Bijaka

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Asana consists of heart-wood of Pterocarpus marsupium Roxb. (Fam.Leguminosae), a moderate to large sized, deciduous tree, upto 30 m high and 2.5 m in girth, with straight clear bole, found mostly throughout Gujarat, Madhya Pradesh Bihar and Orissa.

Common names

Language	Common name
Kannada	Bijasara, Asana
Hindi	Vijayasara, Bija
Malayalam	Venga
Tamil	Vengai
Telugu	Yegi, Veg
Marathi	Bibala
Gujarathi	Biyo
Punjabi	Chandan Lal, Channanlal
Kashmiri	Lal Chandeur
Sanskrit	Beejaka, Peetasaara
English	Indian Kino Tree

Chemical Composition

Alkaloids and resin.

Properties

Reference: Dravya - Substance, Rasa - Taste, Guna - Qualities, Veerya - Potency, Vipaka - Post-digesion effect, Karma - Pharmacological activity, Prabhava - Therepeutics.

Rasa

Tikta (Bitter), Kashaya (Astringent), Katu (Pungent)

Guna

Laghu (Light), Ruksha (Dry)

Veerya

Ushna (Hot)

Vipaka

Katu (Pungent)

Karma

Kushaghna, Rasayana, Kaphapittashamaka, Galadisagna, Kesya, Tvaccya, Stambana, Raktasodana

Habit

Shrub or small tree

Identification

Leaf

Kind	Shape	Feature
Imparipinnate	alternate	leaflets 5-7, alternate, estipulate, 3.5-12.5 x 2-7 cm, elliptic-oblong, oblong-ovate or oblong, apex obtuse and emarginate, base obtuse or acute,margin entire, glabrous, coriaceous; stipules small, lateral, cauducous; rachis 6.5-11.1 cm long, slender, pulvinate, glabrous; petiolule 6-10 mm, slender, glabrous; lateral nerves 9-20 pairs, parallel, prominent, ascending, secondary laterals prominent; intercostae reticulate, prominent.

Flower

Type	Size	Color and composition	Stamen	More information
Bisexual	Terminal and axillary panicles	Yellow	5	0-12 mm long; bracts small, dioecious; bracteoles 2, cauducous. Calyx tube campanulate, lobes short, the upper 2 often connate; corolla exserted. Petals 5, all long-clawed, crisped along the margins; standard orbicular, wings oblique, obovate, auricled; keel petals oblique, small, slightly connate. Stamens 10, monadelphous; filaments subequal; anthers uniform. Ovary shortly stalked, inferior, tomentose, 1-celled, ovules 2; style filiform, in curved, beardless; stigma capitate.

Fruit

Type	Size	Mass	Appearance	Seeds	More information
A Pod	2.5-5 cm across	orbicular-reniform, broadly winged; seed one, subreniform.	Pod surface is distinctly veined		{{{6}}}

Mode of Propagation

Seeds, Cuttings.

Commonly seen growing in areas

Tropical area.

External Links

THE AYURVEDIC PHARMACOPOEIA OF INDIA