Plant Comparison
Water Hyssop vs Great Mullein
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Water Hyssop and Great Mullein: they share 5 indicated uses (arthritis / joint pain, cancer (anticancer research), inflammation (general), …); 3 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Water Hyssop | Great Mullein | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 1/10 | Comparable evidence |
| Cancer (anticancer research) | 2/10 | 2/10 | Comparable evidence |
| Inflammation (general) | 1/10 | 1/10 | Comparable evidence |
| Insomnia / sleeplessness | 1/10 | 1/10 | Comparable evidence |
| Skin irritation | 1/10 | 5/10 | Stronger for Great Mullein |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Anti-inflammatory iridoids contributing to the plant's traditional respiratory and anti-inflammatory use.
Mucilage gives the soothing demulcent action; saponins contribute to the traditional expectorant effect.
Pharmacological Actions
Bacopa monnieri (Brahmi) extract and its saponins (bacopaside II, bacopasaponins) inhibit proliferation and induce apoptosis in colon and lung cancer cells (preclinical).
Traditional & Indicated Uses
inferred from anti-inflammatory action
Bacopaside II from Bacopa monnieri inhibits colon cancer cell growth via cell-cycle arrest and apoptosis (aquaporin-1 blockade), and its bacopasaponins are cytotoxic to lung (PC9) and colon (SW620) cancer cells (preclinical).
inferred from neuroprotective action
inferred from anti-inflammatory action
inferred from sedative action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from expectorant action
inferred from anticancer action
inferred from anti-inflammatory action
inferred from sedative action
Safety, Cautions & Contraindications
Generally well tolerated at standard doses. The most commonly reported side effects are gastrointestinal — nausea, stomach cramps, and increased bowel movements — which can be reduced by taking with food. Not recommended during pregnancy. May interact with medications that increase acetylcholine levels (e.g. Alzheimer's medications). Use with caution in thyroid conditions, as bacopa may increase thyroid hormone levels.
Generally considered safe for short-term use. The tiny hairs on the leaves can cause irritation if tea is not properly filtered. No significant drug interactions documented. Not recommended during pregnancy or breastfeeding due to lack of safety data.
Duke (2002) rates mullein as ++ with clinical evidence (score 2) for its expectorant activity, consistent with Commission E approval for catarrh and inflammation of the respiratory tract. It functions as a demulcent and emollient for mucous membranes. Traditionally used for bronchitis, asthma, and earaches (oil infusion). Dose: 1.5–2 g dried flower or leaf as tea, three to four times daily. Duke notes an antiviral (antiherpetic) activity at the experimental level. The plant is generally well-tolerated with no known significant contraindications at therapeutic doses (Duke, 2002).
External Ids
Botanical Description
Low, creeping, succulent perennial herb that roots at the nodes as it spreads across wet ground. The leaves are small, fleshy, spatula-shaped and arranged oppositely along the trailing stems. Small, pale lavender to white, four- to five-petalled flowers are borne singly in the leaf axils.[4]
Tall, stately biennial herb forming a low first-year rosette of large, soft, thick, densely woolly grey-green leaves; in the second year it sends up a single, tall, unbranched flowering spike densely packed with bright yellow, five-petalled flowers that open a few at a time.[1]
Habitat
Grows in wet, marshy ground, muddy shorelines, rice paddies and shallow water throughout tropical and subtropical regions of Asia, and also found in parts of Africa, Australia and the Americas.[4]
Grows on dry, sunny waste ground, roadsides, disturbed soil and rocky slopes; native to Europe, North Africa and Asia and widely naturalised in North America and elsewhere.[1]
Harvesting
The whole plant (leaf and trailing stem) is harvested during active growth, typically cut a few centimetres above the mud or water line, and dried or used fresh.
The flowers are picked individually as they open through summer (since they open only a few at a time and quickly fade once picked); leaves are gathered from the first-year rosette or second-year plant and dried, with care to filter out the fine leaf hairs, which can irritate the throat if not strained from tea.[1]
Traditional Uses
Bacopa (brahmi) is a classic Ayurvedic 'medhya rasayana' (brain-nourishing) herb, traditionally used to support memory, learning and mental clarity, and as a calming nervine for anxiety and disturbed sleep. This traditional cognitive reputation is now supported by randomised controlled trials of standardised extracts.[1, 4]
Great mullein has a long European and Native American tradition as a soothing demulcent and expectorant remedy for cough, bronchitis and irritated airways, and the flower has also been infused in oil as a traditional remedy for earache; the soft, woolly leaf gave rise to old names like 'flannel leaf' and 'velvet plant'.[1, 2]
Preparations
Dried flower or leaf infused in hot water and carefully strained (to remove fine irritant hairs) as a traditional demulcent cough and respiratory tea.
Dosage
The EU herbal monograph gives 1.5-2 g of the flower in 150 mL of boiling water as an infusion, three to four times daily (daily dose 4.5-8 g), in adolescents, adults and elderly; the infusion should be carefully strained to remove the irritant hairs. The monograph covers the FLOWER (Verbasci flos) only — it gives no posology for the leaf. Not recommended under 12 years. Educational reference only, not a prescription.
References
Drug Class Interactions
Not documented
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- Calabrese, C., Gregory, W.L., Leo, M., Kraemer, D. et al (2008) 'Effects of a standardized Bacopa monnieri extract on cognitive performance, anxiety, and depression in the elderly: a randomized, double-blind, placebo-controlled trial', Journal of Alternative and Complementary Medicine, 14(6), pp. 707-713. doi:10.1089/acm.2008.0018 Randomized trial
https://doi.org/10.1089/acm.2008.0018 - Lorca, C., Mulet, M., Arévalo-Caro, C., Sanchez, M.Á. et al (2022) 'Plant-derived nootropics and human cognition: A systematic review', Critical Reviews in Food Science and Nutrition, 63(22), pp. 5521-5545. doi:10.1080/10408398.2021.2021137 Meta-analysis / review
https://doi.org/10.1080/10408398.2021.2021137 - Fatima, U., Roy, S., Ahmad, S., Ali, S. et al (2022) 'Pharmacological attributes of Bacopa monnieri extract: Current updates and clinical manifestation', Frontiers in Nutrition, 9, pp. 972379. doi:10.3389/fnut.2022.972379 Traditional / reference
https://doi.org/10.3389/fnut.2022.972379 - Kongkeaw, C., Dilokthornsakul, P., Thanarangsarit, P., Limpeanchob, N. and Norman Scholfield, C (2014) 'Meta-analysis of randomized controlled trials on cognitive effects of Bacopa monnieri extract', Journal of Ethnopharmacology, 151(1), pp. 528-535. doi:10.1016/j.jep.2013.11.008 Meta-analysis / review
https://doi.org/10.1016/j.jep.2013.11.008 - Vinod, A., Sathianarayanan, S., Babu, A.E., Sadanandan, P., Venu, A.K. and Venkidasamy, B (2022) 'Bacopa monnieri for disorders affecting brain: current perspectives', Current Topics in Medicinal Chemistry, 22(23), pp. 1909-1929. doi:10.2174/1568026622666220119111538 Meta-analysis / review
https://doi.org/10.2174/1568026622666220119111538 - Dubey, T., Kushwaha, P., Thulasiram, H.V., Chandrashekar, M. and Chinnathambi, S (2023) 'Bacopa monnieri reduces Tau aggregation and Tau-mediated toxicity in cells', International Journal of Biological Macromolecules, 234, pp. 123171. doi:10.1016/j.ijbiomac.2023.123171 Preclinical
https://doi.org/10.1016/j.ijbiomac.2023.123171 - Shalini, V.T., Neelakanta, S.J. and Sriranjini, J.S (2021) 'Neuroprotection with Bacopa monnieri - a review of experimental evidence', Molecular Biology Reports, 48(3), pp. 2653-2668. doi:10.1007/s11033-021-06236-w Meta-analysis / review
https://doi.org/10.1007/s11033-021-06236-w - Simpson, T., Pase, M. and Stough, C (2015) 'Bacopa monnieri as an antioxidant therapy to reduce oxidative stress in the aging brain', Evidence-Based Complementary and Alternative Medicine, 2015, pp. 615384. doi:10.1155/2015/615384 Meta-analysis / review
https://doi.org/10.1155/2015/615384 - Saini, N., Singh, D. and Sandhir, R (2019) 'Bacopa monnieri prevents colchicine-induced dementia by anti-inflammatory action', Metabolic Brain Disease, 34(2), pp. 505-518. doi:10.1007/s11011-018-0332-1 Preclinical
https://doi.org/10.1007/s11011-018-0332-1 - Dubey, T. and Chinnathambi, S (2019) 'Brahmi (Bacopa monnieri): an ayurvedic herb against the Alzheimer's disease', Archives of Biochemistry and Biophysics, 676, pp. 108153. doi:10.1016/j.abb.2019.108153 Meta-analysis / review
https://doi.org/10.1016/j.abb.2019.108153 - Bhandari, P., Kumar, N., Singh, B. and Kaul, V.K (2007) 'Cucurbitacins from Bacopa monnieri', Phytochemistry, 68(9), pp. 1248-1254. doi:10.1016/j.phytochem.2007.03.013 Preclinical
https://doi.org/10.1016/j.phytochem.2007.03.013 - Sivaramakrishna, C., Rao, C.V., Trimurtulu, G., Vanisree, M. and Subbaraju, G.V (2005) 'Triterpenoid glycosides from Bacopa monnieri', Phytochemistry, 66(23), pp. 2719-2728. doi:10.1016/j.phytochem.2005.09.016 Preclinical
https://doi.org/10.1016/j.phytochem.2005.09.016 - World Health Organization (2002) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants - Smith, E. and Palethorpe, H.M. and Tomita, Y. and Pei, J.V. and Townsend, A.R. and Price, T.J. and Young, J.P. and Yool, A.J. and Hardingham, J.E (2018) 'The Purified Extract from the Medicinal Plant Bacopa monnieri, Bacopaside II, Inhibits Growth of Colon Cancer Cells In Vitro by Inducing Cell Cycle Arrest and Apoptosis', Cells, 7(7), pp. 81. doi:10.3390/cells7070081 Preclinical
https://doi.org/10.3390/cells7070081 - Yen, D.T.H. and Cuc, N.T. and Tai, B.H. and Van Kiem, P. and Hoang Duc, M. and Nhiem, N.X. and Cho, S.-H. and Jeong, S.B. and Seo, Y. and Park, S (2022) 'Two new triterpenoid glycosides from Bacopa monnieri and their cytotoxic activity', Natural Product Research, 38(7), pp. 1120-1126. doi:10.1080/14786419.2022.2132498 Preclinical
https://doi.org/10.1080/14786419.2022.2132498 - Calabrese, C., Gregory, W.L., Leo, M., Kraemer, D., Bone, K. and Oken, B (2008) 'Effects of a standardized Bacopa monnieri extract on cognitive performance, anxiety, and depression in the elderly', 14(6), pp. 707--713. Randomized trial
https://scholar.google.com/scholar?q=Effects%20of%20a%20standardized%20Bacopa%20monnieri%20extract%20on%20cognitive%20performance%2C%20anxiety%2C%20and%20depression%20in%20the%20elderly - Stough, C., Lloyd, J., Clarke, J., Downey, L.A., Hutchison, C.W., Rodgers, T. and Nathan, P.J (2001) 'The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects', 156(4), pp. 481--484. doi:10.1007/s002130100815 Randomized trial
https://doi.org/10.1007/s002130100815 - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2024) 'Therapeutic potential of hypnotic herbal medicines: A comprehensive review', Phytotherapy Research, 38(6), pp. 3037-3059. doi:10.1002/ptr.8201 Meta-analysis / review
https://doi.org/10.1002/ptr.8201 - Block, K.I., Gyllenhaal, C. and Mead, M.N (2004) 'Safety and efficacy of herbal sedatives in cancer care', Integrative Cancer Therapies, 3(2), pp. 128-148. doi:10.1177/1534735404265003 Meta-analysis / review
https://doi.org/10.1177/1534735404265003
- Turker, A.U. and Gurel, E (2005) 'Common mullein (Verbascum thapsus L.): recent advances in research', Phytotherapy Research, 19(9), pp. 733-739. doi:10.1002/ptr.1653 Meta-analysis / review
https://doi.org/10.1002/ptr.1653 - Gupta, A., Atkinson, A.N., Pandey, A.K. and Bishayee, A (2022) 'Health-promoting and disease-mitigating potential of Verbascum thapsus L. (common mullein): A review', Phytotherapy Research, 36(4), pp. 1507-1522. doi:10.1002/ptr.7393 Meta-analysis / review
https://doi.org/10.1002/ptr.7393 - Ali, N., Ali Shah, S.W., Shah, I., Ahmed, G. and others (2012) 'Anthelmintic and relaxant activities of Verbascum thapsus (Mullein)', BMC Complementary and Alternative Medicine, 12, pp. 29. doi:10.1186/1472-6882-12-29 Preclinical
https://doi.org/10.1186/1472-6882-12-29 - Mahdavi, S., Amiradalat, M., Babashpour, M., Sheikhlooei, H. and others (2020) 'The Antioxidant, Anticarcinogenic and Antimicrobial Properties of Verbascum thapsus L', Medicinal Chemistry, 16(7), pp. 991-995. doi:10.2174/1573406415666190828155951 Preclinical
https://doi.org/10.2174/1573406415666190828155951 - Kashan, Z.F., Arbabi, M., Delavari, M., Hooshyar, H. and others (2015) 'Effect of Verbascum thapsus ethanol extract on induction of apoptosis in Trichomonas vaginalis in vitro', Infectious Disorders Drug Targets, 15(2), pp. 125-130. doi:10.2174/1871526515666150724114924 Preclinical
https://doi.org/10.2174/1871526515666150724114924 - Chen, S., Liu, H., Wang, S., Jiang, H. and others (2022) 'The Neuroprotection of Verbascoside in Alzheimer's Disease Mediated through Mitigation of Neuroinflammation via Blocking NF-kappaB-p65 Signaling', Nutrients, 14(7), pp. 1417. doi:10.3390/nu14071417 Preclinical
https://doi.org/10.3390/nu14071417 - Bampidis, V., Azimonti, G., Bastos, M.L. and others (EFSA FEEDAP Panel) (2021) 'Safety of a feed additive consisting of a tincture derived from Verbascum thapsus L. (great mullein tincture) for use in all animal species (MANGHEBATI SAS)', EFSA Journal, 19(7), pp. e06711. doi:10.2903/j.efsa.2021.6711 Meta-analysis / review
https://doi.org/10.2903/j.efsa.2021.6711 - Blanco-Salas, J., Hortigon-Vinagre, M.P., Morales-Jadan, D. and Ruiz-Tellez, T (2021) 'Searching for Scientific Explanations for the Uses of Spanish Folk Medicine: A Review on the Case of Mullein (Verbascum, Scrophulariaceae)', Biology, 10(7), pp. 618. doi:10.3390/biology10070618 Meta-analysis / review
https://doi.org/10.3390/biology10070618 - Taleb, S. and Saeedi, M (2021) 'The effect of Verbascum thapsus on episiotomy wound healing in nulliparous women: a randomized controlled trial', BMC Complementary Medicine and Therapies, 21(1), pp. 166. doi:10.1186/s12906-021-03339-6 Randomized trial
https://doi.org/10.1186/s12906-021-03339-6 - Soto, K.M., Luzardo-Ocampo, I., Lopez-Romero, J.M., Mendoza, S. and others (2022) 'Gold Nanoparticles Synthesized with Common Mullein (Verbascum thapsus) and Castor Bean (Ricinus communis) Ethanolic Extracts Displayed Antiproliferative Effects and Induced Caspase 3 Activity in Human HT29 and SW480 Cancer Cells', Pharmaceutics, 14(10), pp. 2069. doi:10.3390/pharmaceutics14102069 Preclinical
https://doi.org/10.3390/pharmaceutics14102069 - European Medicines Agency (HMPC) (n.d.) 'European Union herbal monograph on Verbascum thapsus L., V. densiflorum Bertol. and V. phlomoides L., flos (Verbasci flos)'. Available at: https://www.ema.europa.eu/en/medicines/herbal/verbasci-flos Traditional / reference
https://www.ema.europa.eu/en/medicines/herbal/verbasci-flos - Oliff, H.S. and Blumenthal, M (2003) 'Great mullein', pp. 30--31. Traditional / reference
https://scholar.google.com/scholar?q=Great%20mullein - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - Turker, A.U. and Gurel, E (2005) 'Common mullein (Verbascum thapsus L.): recent advances in research', 19(9), pp. 733--739. doi:10.1002/ptr.1653 Traditional / reference
https://doi.org/10.1002/ptr.1653 - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Lin, C.C. and Yang, C.C. and Phua, D.H. and Deng, J.F. and Lu, L.H (2010) 'An outbreak of foxglove leaf poisoning', Journal of the Chinese Medical Association, 73(2), pp. 97-100. doi:10.1016/S1726-4901(10)70009-5 Clinical study
https://doi.org/10.1016/S1726-4901(10)70009-5 - Janssen, R.M. and Berg, M. and Ovakim, D.H (2016) 'Two cases of cardiac glycoside poisoning from accidental foxglove ingestion', CMAJ, 188(10), pp. 747-750. doi:10.1503/cmaj.150676 Clinical study
https://doi.org/10.1503/cmaj.150676 - Woodland Trust (2024) 'Foxglove (Digitalis purpurea)'. Available at: https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/plants/wild-flowers/foxglove/ Traditional / reference
https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/plants/wild-flowers/foxglove/ - NC State Extension (2024) 'Verbascum thapsus (Common Mullein)'. Available at: https://plants.ces.ncsu.edu/plants/verbascum-thapsus/ Traditional / reference
https://plants.ces.ncsu.edu/plants/verbascum-thapsus/
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.