✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.
Classifications of Herbs:Yang Tonics,Herbs for Reinforcing Yang
Introduction: Yang Tonics,Herbs for Reinforcing Yang: also known as Yang-tonifying herb, or Yang-reinforcing herb, an agent or substance herb that tonifies Yang-Qi, used in treating Yang deficiency.
✵Till the date Oct 10th,2019, there are Totally  kinds of common TCM herbs,  kinds of related plant species,  kind of related fungus species, are recorded in this category. These Yang Tonics, Herbs for tonifies Yang-Qi are briefly introduced separately:
Radix Morindae Officinalis(Morinda Root).
Brief Introduction: The Herb Radix Morindae Officinalis is the dried root of Morinda officinalis How(family Rubiaceae), used to reinforce kidney Yang for the treatment of impotence and premature ejaculation in men, and frigidity in women. The herb is commonly known as Radix Morindae Officinalis, Morinda Root, Bā Jǐ Tiān.
✵Common official herbal classics and other famous herbal classics defined the herb Radix Morindae Officinalis(Bā Jǐ Tiān) as the dry root of the Rubiaceae family plant species (1). Morinda officinalis How. It is a plant of the Morinda genus, the Rubiaceae family of the Gentianales order. This commonly used species is introduced as:
(1).Morinda officinalis How.: The Morinda officinalis How., is a plant of the Rubiaceae family and Morinda genus, it is commonly known as "Bā Jǐ Tiān", and other names "Ji Chang Feng, Mao Chang Jing, Tu Zi Chang, etc.". vine, fleshy root did not locate the intestinal constriction, the root flesh was slightly purplish red, purplish-blue. Young shoots covered with coarse hairs of varying lengths and lengths, glabrescent after becoming coarse, old shoots glabrous, arrayed, brown or blue-black. Leaves slightly thick or thin paper, dry brown, oblong, long oval round or oval oblong, 6 to 13 cm long, 3~6 cm wide, apex acute or with a little short, pointed, base pure, rounded or cuneate, margin entire, sometimes with sparse short Tricholoma, above the early is sparse, close to long hirsute, became glabrous, midrib linear uplift, how many stabbed bristles or curved hair, glabrous or midrib below is hydrophobic short hairs; The lateral veins are 4~7 on each side, curved upward, connected at the edge or near the edge, and the reticular veins are obvious or not obvious. Petiole 4~11 mm long, densely covered with short coarse hairs below; Stipules 3~5 mm long, flat top, dry membranous, fragile.
Inflorescences 3~7 arranged in umbel; Inflorescence stalk 5~10 mm long, pubescent, base often with ovate or 1 linear involucre; Flower heads with 4~10 flowers; Flowers 2~3~4 radix, no pedicels; Calyx oblong conical, lower and adjacent calyx connate, top with undulate teeth 2~3, 1 lateral teeth outsize, triangular lanceolate, apex or obtuse, other teeth very small; Corolla white, nearly campanulate, slightly fleshy, 6~7 mm long, crown tube 3~4 mm long, apex narrow and kettle shaped, cornice usually 3-lobed, sometimes 4-or 2-lobed, lobes ovate or oblong, top upward and inward hooked, outside covered with short bristles, down to throat densely bearded. Stamens equal to corolla lobes, inserted at base of lobes, filaments very short, anthers recessed, ca. 2 mm long; Style extended, stigma oblong or intradural, stigma not swollen, 2-diaplasia or 2-diaplasia, ovary 2~4, 1 each ovule, inserted below the septum.
Polychaetes are developed from multiple or single flowers, red when ripe, oblate or nearly spherical, 5~11 mm in diameter. Karyocarp (2~4); Nucleus triangular-shaped, lateral camber, hairy, 1 inner mask seed, fruiting stalk very short; Seeds black when ripe, slightly triangular, glabrous. The flowering period is from May to July, fruit ripens from October to November.
Ecological environment: The Morinda officinalis How., grows in mountain sparse, dense forests and shrubs, often climbing on shrubs or tree trunks, also introduced for cultivation. Geographical distribution: This species mainly distributed in regions of the tropical and subtropical regions, in China it distributed in provinces Guangdong, Guangxi, Hainan and other provinces and regions of the tropical and subtropical regions.
Trait identification: root flat round column form cylindrical, slightly curved, length unequal, diameter 1~2 cm, surface sallow yellow or yellowish-brown, some microstrip purple, with longitudinal wrinkle and deep-set transverse grain, some are constricted or the skin part transverse to break away from the exposed wood, such as chicken intestines. Qualitative toughness, fracture surface uneven, skin thickness 5~7 mm, lilac, wood diameter 2~4 mm. Smells light, bitter taste, slightly astringent.