Introduction of Rou Cong Rong: Desert-living Cistanche
✵The article records the herb Desert-living Cistanche—its English name, Latin name, Pinyin name, properties and flavor, botanical source—one plant species: Cistanche deserticola Y.C. Ma, and provides a detailed introduction to the botanical features, growth characteristics, and ecological environment of this species; the characteristics of the dried herb; its pharmacological actions, medicinal efficacy, and administration guidelines.
Herba Cistanchis (Desert-living Cistanche)
Pinyin Name: Ròu Cōng Róng
English Name: Desert-living Cistanche
Latin Name:Herba Cistanchis Properties and Flavor: Warm in nature; sweet and salty in taste.
Brief Introduction:Herba Cistanchis is the dried succulent stem with scale leaves of Cistanche deserticola Y.C. Ma, used (1) to reinforce kidney Yang for treating impotence and premature ejaculation, and (2) as a mild laxative for chronic constipation in the elderly. The herb is commonly known as Herba Cistanchis, Desert-living Cistanche, or Ròu Cōng Róng.
Botanical Source: Classical herbal works define Herba Cistanchis (Ròu Cōng Róng) as the dried succulent stem of plants in the Orobanchaceae family (broomrape family), primarily Cistanche deserticola Y.C. Ma. Other species—including Cistanche salsa (C.A. Mey.) G. Beck and Cistanche ambigua (Bge.) G. Beck—are also used. The most commonly used species is described below:
(1) Cistanche deserticola Y.C. Ma
Botanical Description:Cistanche deserticola Y.C. Ma is a perennial parasitic herb of the Orobanchaceae family and the genus Cistanche. It is commonly known as Cistanche deserticola, Ròu Cōng Róng, Shā Mò Rén Shēn (“desert ginseng”), or Dà Yún. It grows 40–160 cm tall. Stems are succulent, usually unbranched but occasionally dividing into 2–3 branches at the base; the lower part is 5–15 cm wide, tapering upward to 2–5 cm wide. Leaves are numerous, scaly, spirally arranged, yellowish-white, and sessile. Lower leaves are densely packed, broadly ovate or triangular-ovate, 0.5–1 cm long and 1–2 cm wide; upper leaves are sparser, linear-lanceolate, 1–4 cm long and 0.5–1 cm wide (sometimes up to 1–2 cm wide); both surfaces are glabrous.
Inflorescence: A dense spike, 15–50 cm long. Bracts are linear-lanceolate or ovate-lanceolate, 2–4 cm long and 0.5–0.8 cm wide, sparsely covered with woolly hairs or nearly glabrous. Two bracteoles are ovate-lanceolate, equal in length to the calyx or slightly longer, and similarly sparsely woolly or glabrous. The calyx is campanulate (bell-shaped), 1–1.5 cm long, shallowly 5-lobed, with orbicular lobes. The corolla is tubular-campanulate, 3–4 cm long, with 5 expanded, nearly semicircular lobes. Flowers are yellowish-white or mauve (lilac), turning tan (chocolate brown) upon drying; two vertical canary-yellow protrusions occur inside the corolla tube. Stamens number four, didynamous, nearly included; filaments are slightly curved in the upper part, with pilose bases; anthers are arrow-shaped and villous. The ovary is superior, with a yellowish nectary at the base; the style is slender and elongated, with an inflexed tip; the stigma is subglobose.
Fruit: A capsule, ovoid (egg-shaped), 2-lobed, brown. Seeds are numerous, minute, elliptic-ovate, reticulated on the surface, and glossy. Flowering occurs from May to June; fruiting from June to July.
Ecological Environment: This plant grows in desert areas at altitudes of 225–1,150 m above sea level, parasitizing the roots of Haloxylon ammodendron (C.A. Mey.) Bunge and related Chenopodiaceae species. It is distributed in China.
Growth Characteristics: Cistanche deserticola is an obligate root parasite, primarily dependent on Haloxylon ammodendron (C. A. Mey.) Bunge, and Haloxylon Persicum Bunge ex Boiss. Et Buhse. It thrives in arid desert environments. Preferred soil is medium-to-fine sandy loam, neutral to alkaline, with relatively high salinity. Seeds are numerous, small, and lightweight.
Characteristics of the Herb: The dried stems are succulent, long-cylindrical, sometimes slightly flattened and gently curved, measuring 3–15 cm in length and 5–15 cm in diameter at the base, tapering upward to 2–5 cm in diameter. Some specimens are cut into segments of uniform diameter. The surface is taupe (grayish-brown) or tan (chocolate brown), bearing longitudinal grooves and densely covered with imbricated, succulent scale leaves—rhomboid or triangular in shape, 0.5–1.5 cm wide and ~2 mm thick. Leaf traces (meniscus-shaped folial scars) remain visible after scale detachment. The texture is firm and compact, not easily broken. The fracture surface is brown, with pale brown (hazel) vascular bundle dots arranged in wavy or serrated concentric rings. The xylem accounts for approximately 4/5 of the cross-section and may be hollow. Sometimes, crystal-like small bright spots are visible on the surface and cross-section under light. The herb has a faint odor and tastes sweet with a slight bitterness.
The dried succulent stem with scale leaves of Cistanche salsa (C.A. Mey.) G. Beck.—an annual parasitic plant that emerges from the base of Haloxylon and other host plants in the Orobanchaceae family (broomrape family)—is native to East Asia and North America. It grows on sandy soils in northwestern China and in California, USA.
Cistanche ambigua (Bge.) G. Beck. is a perennial parasitic herb. Its stem base is markedly hypertrophied, measuring 30–45 cm in diameter; the scaly leaves are ovate-lanceolate. The upper stems are thinner, 15–25 cm in diameter, bearing long-linear-lanceolate scale leaves. Spikes are oblong or cylindrical; bract margins are densely woolly; and corolla lobes are pubescent. It grows on sandy soil.
In China, cistanche is produced primarily in the northwestern regions. It is harvested in spring before seedlings emerge from the soil. After removal of the inflorescence, the stems are cut into segments and sun-dried—yielding what is known as "sweet cistanche." Herbs collected in autumn are soaked in brine, then desalted, sliced, and either sun-dried or processed by steaming with water and wine followed by air-drying—yielding "salty cistanche."
It is also called Broomrape, Desert Broomrape, or Desert-living Cistanche. The stem is flattened-cylindrical, slightly curved; it is usually 3–15 cm long and 2–8 cm in diameter. The outer surface is reddish-brown or grayish-brown, densely covered with imbricate (overlapping like roof tiles) succulent scales; the apices of the scales are often broken. Heavy in weight; hard yet fairly pliable, not easily broken; when fractured, the surface is reddish-brown, with pale brown punctiform (dot-like) vascular bundles arranged in undulating (wavy) concentric rings. Odor: faint; taste: sweet and slightly bitter.
Cistanche is a tonic herb that promotes blood circulation. It has a reputation for enhancing energy and supporting healthy aging. It acts as a kidney tonic, helps regulate bowel function, and augments vitality. Its Latin name is Herba Cistanchis, and its Pinyin name is Ròu Cōng Róng.
Cistanche is a hardy, shrub-like plant native to the desert regions of northwestern China. It resembles a cross between a pinecone and a pineapple, with thick, succulent stems and large, yellow flowers that decrease in size toward the apex. The stems are harvested in spring, sun-dried, and sliced for herbal use.
In traditional Chinese medicine, Cistanche is used to nourish blood and tonify kidney Yang. It is most commonly indicated for impotence and premature ejaculation, soreness and weakness of the lower back and knees, and constipation due to deficiency and dryness. Some studies suggest potential applications in certain cases of infertility and in supporting healthy blood pressure levels.
Pharmacological Actions: (1) Immune-enhancing effects; (2) Effects on the digestive system; (3) Promotion of intestinal motility; (4) Counteraction of atropine-induced defecation inhibition; (5) Inhibition of water absorption in the large intestine.
Medicinal Efficacy: Tonifies kidney Yang, replenishes essence and blood, moistens dryness, and lubricates the intestines. It is indicated for: Kidney-Yang deficiency (manifesting as cold limbs, lassitude, low libido, impotence); Essence and blood deficiency (e.g., infertility, amenorrhea, premature graying, tinnitus, blurred vision); Impotence and infertility (including "cold uterus" in women); sexual impotence and infertility; abnormal leukorrhea, metrorrhagia, delayed menstruation, white turbidity (urethral discharge); Soreness, weakness, cold pain, or numbness of the lower back and knees; Lumbago, flaccidity or weakness of the lower limbs; deficiency of tendons and bones; Frequent urination, dribbling, or nocturia; Constipation due to blood deficiency or intestinal dryness; Tinnitus and dizziness (ringing in ears, dim eyesight or blurred vision).
Administration of Herba Cistanchis (Ròu Cōnɡ Rónɡ):
Reference:
Administration Guide for Herba Cistanchis (Ròu Cōnɡ Rónɡ)
TCM Books:
①.Internally: 6–10 grams; ②.Internally: water decoction, 2–3 qián (about 6–9 grams); may also be formulated into pills or powders; ③.Internally: water decoction, 10–15 grams; or prepared as pills, powders, or wine infusions.
Contraindications, Precautions, and Adverse Reactions: Avoid processing Herba Cistanchis with iron or copper utensils.
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1.Introduction of Rou Cong Rong: Desert-living Cistanche