बीजक
BIJAKA Botanical Name : Pterocarpus marsupium. Family: Leguminosae. Pterocarpus, means : Winged fruit. marsupium, means : It bears pouch in flowers. Classical Categorization : Charaka Samhita : Udardaprashamana Mahakashaya Sushruta Samhita : Salsaraadi gana. Bhavaprakasha Nighantu : Vataadi varga. Synonyms : 1. Peetasara 2. Peetashaluka 3. Bandhukapushapa 4. Preeyaka 5. Sarjaka 6. Asana Latin-टेरोकार्पस मारसूपियम ( Pterocarpus marsupium Roxb.); संस्कृत-बीजक, असन, पीतशाल हिन्दी-विजयसार, बीआ; बांग्ला-पीतशाल,पियासाल; मराठी-विवला; गुजराती-बीयो; तामिल-वेगइ; तेलगु-पेट्द्गि; मलयालम -वेंग; कन्नड़- बंगे; अंग्रेज़ी-इण्डियन काइनो ट्री ( Indian kino tree ) मालाबार काइनो (Malabar kino tree ) External Morphology: It is a large deciduous tree with stout, crooked stem bark, thick, yellowish grey. Leaves-15-23cm long leaflets 5-7 oblong, obtuse, under glabrous. Flowers - in short lateral and terminal pubescent paniculate racemes. Pods 2.5-5cm diameter. Seeds-small Habitat: It grows in south India. Major chemical constituents : Pterocarpus, marsupium, marsupio, carpusin, epicatechin, propterol, pterosupin, marsupinol, lupeol. Rasapanchaka : Rasa : Kashaya. Guna : Laghu, ruksha. Veerya : Sheeta. Vipaka : Katu. Indications : Kushtha, Visarpa, Shivitra, Premeha, Krimi. Part Used : Heart wood, kandasara. Doses : kwatha 50-100ml, churana 3-6gms, Niryasa 250-500mg Aamika Prayoga: 1. Rakta-pitta : Alkali of madhu and Asana is useful. 2. Shalipada : Paste of Heart wood of khadira, Asana Shala is useful with cows urine. 3. Sthoulya: Kwatha of heart wood of Asana should be taken in morning with honey. 4. Shotha: Lepa of Asana leaves externally is useful in shotha. Yoga: Beejakasararishta.