红芋，中药名。为天南星科植物岩芋Remusatiavivipara(Lodd.)Schott.的茎叶及块茎。分布于云南。具有解毒杀虫，消肿止痛之功效。常用于乳痈，疮疖肿毒，疥癣，跌打瘀肿。
Hong-yu, name of Chinese Medicinal Material. It refers to the stems, leaves, and tubers of Remusatia vivipara (Lodd.) Schott, a plant in the Araceae family. It is distributed in Yunnan. It has the functions of detoxification, insecticidal, anti-inflammatory, and pain relief. It is often used for breast abscess, sores, carbuncles, scabies, and bruises.

功效作用 功能
The efficacy and functions.

解毒杀虫，消肿止痛。主治
Detoxification, insecticidal, reducing swelling and relieving pain. Mainly used for治疗.

乳痈，疮疖肿毒，疥癣，跌打瘀肿。用法用量
Mammary abscess, ulceration and swelling with toxicity, scabies, and bruises from falls and blows. Dosage and administration.

外用：适量，捣敷。注意事项
External use: Apply an appropriate amount and apply by pounding. Pay attention to the following precautions.

外敷面积不宜过大，以免中毒。孕妇忌用。相关论述
The application area should not be too large to avoid poisoning. It is not suitable for use by pregnant women. This is related to the discussion.

《云南思茅中草药选》：“消肿杀虫，麻醉止痛。治急性乳腺炎，跌打瘀肿，痈疮疖肿、癣疥。”加工炮制 采收加工
"Yunnan Simao Herbal Selection": "Reduces swelling, kills parasites, anesthetizes and relieves pain. Used to treat acute mastitis, bruises and swelling from falls, boils, carbuncles, and skin diseases such as ringworm and scabies." Processing and preparation: collection and processing.

全年均可采，洗净，多为鲜用。植物学信息 植物种属
Can be harvested all year round, washed and mostly used fresh. Botanical information: Plant species.

天南星科植物岩芋。形态特征
The botanical name for Tian Nan Xing is Arisaema erubescens. It is a perennial herbaceous plant with a tuberous root. The leaves are compound, with 3-5 leaflets, and the inflorescence is a spadix enclosed by a spathe. The flowers are greenish-purple and are followed by clusters of red berries.

岩芋，又名零余芋。多年生草本。块茎较大，扁球形，紫红色，直径达4-5cm，颈部密生长达10余cm的须根和红黄色至紫红色芽条，芽条长30-40cm，粗约5mm，直立或上升。叶柄圆柱形，长40-50cm；叶片盾状，薄革质，表面暗绿色，有时沿中肋和侧脉苍白色，阔心状卵形，长30-40cm，宽20-25cm，先端渐尖。花序柄圆柱形，长10-15cm；佛焰苞管部处面浅绿色，内面苍白色，狭长圆形，长4-4.5cm，宽约1cm，檐部下部1/4为黄色，上部紫红色，梯形，反折，长8-9cm，具长3-5mm长的凸尖；肉穗花序长一般不超过佛焰苞管；雌花序长约2cm，粗6-7mm，绿色；不育雄花序长约1.7cm，粗约3mm；能育雄花序椭圆形或圆柱形，长1.5-2.2cm，粗4-7mm，黄色；花单性，无花被；能育雄花为合生的楔棒状合蕊柱，包含雄蕊2-3；雌花心皮4，子房卵圆形。浆果内藏于佛焰管内。种子多数，卵形。花期4-9月。分布区域
Yan yu, also known as ling yu. Perennial herbaceous plant. The tuber is relatively large, flat and spherical, purple-red in color, with a diameter of 4-5cm, and densely covered with roots and red-yellow to purple-red sprouts at the neck, with sprouts reaching over 10cm in length, and the sprouts are about 30-40cm long, approximately 5mm thick, and erect or ascending. The petiole is cylindrical, 40-50cm long; the leaf blade is shield-shaped, thin and leathery, dark green on the surface, sometimes pale along the midrib and veins, broadly ovate, 30-40cm long, 20-25cm wide, and gradually pointed at the apex. The peduncle is cylindrical, 10-15cm long; the bract tube at the base is light green on the outside and pale inside, narrowly oblong, 4-4.5cm long, about 1cm wide, with the lower 1/4 of the upper part being yellow, the upper part being purple-red, trapezoidal, reflexed, 8-9cm long, with a long, pointed tip of 3-5mm; the flesh spike inflorescence is generally not longer than the bract tube; the pistillate inflorescence is about 2cm long, 6-7mm thick, green; the sterile staminate inflorescence is about 1.7cm long, approximately 3mm thick; the fertile staminate inflorescence is elliptical or cylindrical, 1.5-2.2cm long, 4-7mm thick, yellow; the flowers are unisexual, without perianth; the fertile staminate flowers have connate wedge-shaped synandria, containing 2-3 stamens; the pistils of the pistillate flowers are 4, and the ovary is ovate. The berries are contained within the bract tube. Numerous seeds, ovate. Flowering period is from April to September. Distribution area.

云南。生长环境
Yunnan. Growing environment

常附生于海拔750-1900m的河谷疏林或灌丛中的岩石上。
It often grows on rocks in sparse forests or shrubs in river valleys at an altitude of 750-1900 meters.