It is known that the Akar Kuning plant contains various bioactive compounds, one of the most famous being berberine. Akar Kuning are lianas, up to 20 m long, living in lowlands up to 800 m above sea level (asl). The leaves are thick and strong like skin, oval shaped, blunt not sharp, leaf width 7 cm to 20 cm, glossy top surface and long stalk. The flowers are housed in two small sizes arranged in a series of glabrous 20 cm to 50 cm, greenish-white or yellowish-white with buds. 5 The wood is yellow, its purpose is to boil the stems to treat jaundice, digestion, intestinal worms, fever, and canker sores. The fruit, which is yellow in color, can be used to anesthetize fish. 1 This study uses an ethnomedicine approach. Ethnomedicine is the perception and conception ABSTRACT Indonesia is one of the countries that has the largest tropical forest land in the world, this makes Indonesia rich in diversity of flora and fauna. This diversity produces a variety of cultures, traditions and local wisdom. One of the local wisdoms of the people of West Sumatra is the use and utilization of the biodiversity around it as a medicine for various diseases. The type of medicinal plant that is the focus of this research is the type of Akar Kuning plant (Arcangelisia flava Merr.). This research is an educational research conducted using an ethnoscience approach, meaning that it is based on the indigenous knowledge of the local community. This study aims to reconstruct knowledge from a cultural / community perspective in the health sector. which later will become a knowledge with scientific explanation. The data were obtained through direct observation to the research location regarding indigenous knowledge about the Akar Kuning plant and also based on laboratory test data on antibacterial activity carried out in the biology laboratory of Semarang State University. All data obtained will be analyzed and also strengthened by various sources. The analysis concluded that the Akar Kuning (Arcangelisia flava Merr.) Plant contains bioactive compounds that act as antibacterials, thus inhibiting bacterial growth. This is evidenced by the inhibition zone diameter data produced during laboratory tests showing the results that the Yellow Root plant extract (Arcangelisia flava Merr.

Padang Panjang city located at an altitude of 650 to 850 meters above sea level, so that weather cold and cool. Temperatures range from 17 °C to 26.1 °C and with 3,295 mm/ year of rainfall. This area is rich in the diversity of flora and fauna. Pteridophyta is one of the flora that has a unique diversity of species and has the potential for tremendous utilization such as ornamental plants, medicines and vegetable plants. The study was conducted in the Lubuak Mato Kuciang area of Padang Panjang City, West Sumatra, which is currently being developed for tourism. The aim of this study obtain collect data and information about the diversity of ferns in Lubuk Mato Kuciang. The activities of the study are conducted to collect species as much as possible. Identification of fern species was carried out in the Laboratory of Educational Science. Mathematics and Science Faculty. Padang State University. The identification of flora was analyzed descriptively. The identification species results were obtained through descriptive analysis. The results of this study obtains that there were 21 species of fern that include 11 families. They were namely; Selaginellaceace including Selaginella sp, Selaginella plana Hieron and Selaginella wildenowii; Lomariopsidaceae family including Neplholepisbiserrata; Pterisvittata L; Adiatumpedatum; Cyatheaceae family, including Cyatheacontaminans; Gleicheinaceae including Gleichenialinearis; Marrattiaceae family including Marrattiafraxinea; Lindsaeaceae family including Sphenomeris chinensis; and Dryopteridaceae family including Nephroletis cordifolia.

Currently, the development of conventional medicine is getting more advanced, it cannot be denied that medicinal plants still occupy their main role as medicine for various human diseases, especially in developing countries. This is rooted in the knowledge of the local community about plants that can be used as medicine for various diseases. Ethnomedicine is a field of study that raises local knowledge of the community to maintain their health. From numerous studies on the field, 33 species of plants have been found which are believed by the natives to West Sumatra as medicine. Ethnomedicinal data were analyzed using Index of Cultural Significance (ICS) value. The results of the analysis showed that the species of plants that is voted most important for the community were soursop (Annona muricata) and red betel (Piper sp.). In general, the part of plant that is most often used as medicine is the leaf, and the way to consume it is by boiling it so that you can get the herbs from the plant extract.

Padang city is the capital of West Sumatra, which is located in the west of the island of Sumatra. The city has the largest trading center viz Pasar Raya Padang. In addition, trading activities in Padang are also supported by 16 small markets scattered throughout the city, nine of which are owned by the Padang City Government, namely Alai Market,