This profile uses Cistanche deserticola Ma in the Orobanchaceae, an accepted name in Kew POWO. It is a perennial holoparasite: it has no green leaves for independent photosynthesis, spends most of its life below ground, and obtains water and nutrients through a host plant’s roots. The medicinal material is the stout fleshy stem, whose flowering spike emerges above ground. Do not confuse it with Cistanche tubulosa, C. salsa, or related species that may also be sold as “cistanche.” Flora of China describes stems about 0.4–1.6 m tall, small scale-like leaves, and pale yellow-white to pale purple tubular flowers; flowering is around May–June and fruiting June–August. Bracts, flowers, host, distribution, and scientific name should be considered together. The AI illustrations support study; they cannot replace a voucher specimen or identity testing.

The HKBU materia medica record identifies Rou Cong Rong as Cistanche deserticola Y.C. Ma and the dried stem; it records a sweet and salty taste and warm nature. Its traditional functions in that record are to supplement kidney yang and essence/blood and to moisten the bowel. ISO 25115:2026 likewise describes the cultivated Rou Cong Rong stem in traditional Chinese medicine as warming kidney yang, reinforcing essence and blood, and relaxing the bowel. These are traditional-source descriptions, not diagnoses or proof that the plant treats kidney disease, infertility, or constipation in every person. The materia medica name may cover more than one Cistanche species, so read the standard, provenance, and identity of each material.

Chemical studies and reviews describe phenylethanoid glycosides such as echinacoside and acteoside, among other constituents; some are quality markers in the Chinese Pharmacopoeia. Many findings involving antioxidant, neurological, immune, or laxative effects come from chemical assays, cells, animals, or specifically standardized extracts. They cannot be transferred directly to a dried stem or commercial supplement in people. ISO 25115 sets quality requirements for cultivated stems in international trade, including macroscopic identity, moisture, ash, thin-layer chromatography, marker compounds, heavy metals, and pesticide residues; a quality standard does not itself prove therapeutic efficacy. This profile does not claim that Cistanche cures disease, boosts sexual function, or prevents aging.

This profile does not give a personal dose. The amount shown for Ji Chuan Jian below is one historical formula record in HKBU’s database, not a dose for readers. ISO specifies quality checks for cultivated material; CITES and value-chain research also describe species mixing, adulteration, and harvest pressure. Do not ingest unidentified stems, material without residue controls, or stock showing mold. The medical sources reviewed do not establish one specific toxic interaction with a modern medicine across all products; that absence does not prove there are no interactions. People who are pregnant or breastfeeding, have a medical condition, take medicines, or have diarrhea should consult a clinician or pharmacist before use. Do not dig wild plants; stem harvest can damage soil and host shrubs.

One source-recorded combination is Ji Chuan Jian (HKBU formula F00023), which contains Rou Cong Rong with Chinese angelica, Achyranthes, Alisma, Cimicifuga, and immature bitter orange. HKBU records Rou Cong Rong 2–3 qian (6–9 g), Angelica 3–5 qian (9–15 g), Achyranthes 2 qian (6 g), Alisma 1.5 qian (4.5 g), Cimicifuga 5–7 fen or 1 qian (1.5–3 g), and immature bitter orange 1 qian (3 g). The source’s traditional rationale is to warm the kidney, supplement essence, and moisten the bowel; this is not clinical proof. These amounts belong to that recorded version and are not a general safe ratio for self-combination. HKBU and the medical sources reviewed did not identify a specific herb that makes Cistanche poisonous; absence of a report does not establish that every combination is safe.

A useful visual cue is the stout pale yellow to golden-brown stem with almost no green foliage and a long spike densely covered in tubular flowers. Below ground, the parasite attaches to host roots through a haustorium; it is most visible above ground during its growth and flowering season. Record the host, parasite stem, and floral structure separately; do not excavate roots outside an authorized plot. C. deserticola can be confused with C. salsa and C. tubulosa; an image, trade name, or dried color cannot distinguish them reliably. The AI image illustrates the parasitic relationship and general form, not the exact proportions of a voucher specimen.