Plant Comparison
Common Juniper vs Corn Silk
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
Common Juniper and Corn Silk: they share 5 indicated uses (cancer (anticancer research), infection (general), swelling / fluid retention, …); 3 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Common Juniper | Corn Silk | Verdict |
|---|---|---|---|
| Cancer (anticancer research) | 2/10 | 2/10 | Comparable evidence |
| Infection (general) | 1/10 | 1/10 | Comparable evidence |
| Swelling / fluid retention | 1/10 | 1/10 | Comparable evidence |
| Urinary support | 1/10 | 1/10 | Comparable evidence |
| Urinary tract infection (UTI) | 1/10 | 1/10 | Comparable evidence |
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
Berry essential oil dominated by alpha-pinene, beta-pinene, sabinene and limonene, giving the characteristic aroma and the antimicrobial activity.
Antioxidant and astringent supporting constituents.
Major antioxidant constituents of corn silk; maysin is the predominant flavonoid quantified in standardised extracts.
Contribute to antioxidant and anti-inflammatory activity.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anticancer action
inferred from digestive action
inferred from antimicrobial action
inferred from diuretic action
inferred from diuretic action
inferred from diuretic action
inferred from anti-inflammatory action
inferred from anticancer action
Soothing demulcent for urinary-tract irritation and mild urinary infections; supports kidney function
inferred from anti-inflammatory action
inferred from demulcent action
Diuretic - increases urine output to support the urinary tract and mild fluid retention/swelling; in conscious rats the aqueous extract is diuretic and kaliuretic and modifies glomerular filtration and potassium excretion
inferred from diuretic action
Diuretic - increases urine output to support the urinary tract and mild fluid retention/swelling; in conscious rats the aqueous extract is diuretic and kaliuretic and modifies glomerular filtration and potassium excretion; Soothing demulcent for urinary-tract irritation and mild urinary infections; supports kidney function
Safety, Cautions & Contraindications
Avoid in pregnancy. Juniper is not recommended during pregnancy (EMA/HMPC, 2023; Health Canada, 2025).Avoid with kidney disorders / serious kidney disease. It’s not recommended if you have kidney disease (EMA/HMPC, 2023; Health Canada, 2025).Adults only (for medicinal use). Use in under-18s is not recommended due to lack of data (EMA/HMPC, 2023).Hydration matters. If you’re using it for urinary “flushing,” you need adequate fluid intake (EMA/HMPC, 2023).Stop and seek help if symptoms look serious. Fever, painful urination, cramps/spasms, or blood in urine = talk to a clinician (EMA/HMPC, 2023).Duration caution. If using it beyond a few weeks, talk to a health professional (Health Canada, 2025).If breastfeeding: ask a health professional first (EMA/HMPC, 2023; Health Canada, 2025).
Duke (2002) rates juniper as + (use with caution), noting diuretic, carminative, and aquaretic activities, primarily at the experimental level (score 1). Traditional use for urinary infections is not supported by strong clinical evidence. The essential oil contains potentially nephrotoxic terpinen-4-ol, and juniper is contraindicated in kidney disease, urinary infections with inflammation, and pregnancy (emmenagogue and potential abortifacient properties). Commission E and PhEur do not recommend medicinal doses for prolonged use exceeding 4–6 weeks (Duke, 2002).
As a diuretic it should be taken with plenty of fluids; use caution alongside prescription diuretics or medicines that affect potassium.
May lower blood sugar and blood pressure, so use caution with antidiabetic or antihypertensive medication; avoid concentrated medicinal doses in pregnancy - a high-dose standardised extract increased pre-implantation losses in pregnant rats (no fetal malformations were seen).
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Botanical Description
Evergreen coniferous shrub or small tree, often low and sprawling, with sharp, needle-like leaves in whorls of three, each bearing a single white band on the upper surface. The plant is dioecious; female plants bear small, round, fleshy, berry-like cones ('juniper berries') that take two to three years to ripen from green to blue-black.[1]
Tall, robust annual grass with broad, strap-like leaves and a stout, jointed stem. Male flowers form a terminal tassel; female flowers develop on the ear (cob), each floret bearing a single long, silky style and stigma ('corn silk') that protrudes from the husk to catch pollen.[11]
Habitat
Grows on heath, moorland, rocky hillsides and open coniferous woodland on poor, often calcareous soils; one of the most widely distributed conifers, native across the Northern Hemisphere from Europe and Asia to North America.
Cultivated worldwide as a major cereal food crop in warm-temperate to tropical climates on fertile, well-drained soils; not found wild, having been domesticated from a wild grass ancestor (teosinte) in Mesoamerica.[11]
Harvesting
The ripe, blue-black berry-like cones are hand-picked in autumn, typically in their second or third year of ripening (a mix of ages is often present on the same shrub); leaves and young stems can be gathered through the growing season.
The silky stigmas and styles are collected from the ears in mid- to late summer, just before or as pollination occurs, while still fresh and pale, then dried quickly to preserve colour and flavonoid content.[11]
Traditional Uses
Juniper berry has a long European tradition as a diuretic and urinary antiseptic for minor urinary complaints, a warming digestive carminative for indigestion and bloating, and a flavouring for gin and other spirits; the leaf and wood have also been burned or used topically for their antimicrobial properties.[1]
Corn silk has a long traditional use across Chinese, Native American and European folk medicine as a gentle diuretic and soothing demulcent for urinary tract complaints, mild fluid retention and kidney support.[11]
Preparations
Comminuted juniper cone berries infused in 150 ml boiling water, 2.0-2.5 g as a single dose 1-3 times daily per the current revision of the EU herbal monograph. Educational reference only, not a prescription.
Steam-distilled from the berries; used in small internal doses for short periods or diluted for topical/aromatic use.
Dried corn silk infused in hot water as a traditional diuretic and urinary-support tea.
Dosage
The EU herbal monograph gives 2.0-2.5 g of the comminuted cone berries in 150 mL of boiling water as an infusion, 1-3 times daily (single dose 2-2.5 g, daily dose 2.5-6 g), for adults and elderly. Use is limited to short courses - if symptoms persist beyond 2 weeks a healthcare practitioner should be consulted - with adequate fluid intake; contraindicated in severe renal disease and not recommended in pregnancy. Educational reference only, not a prescription.
Not documented
References
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- Pepeljnjak, S., Kosalec, I., Kalodera, Z. and Blazević, N (2005) 'Antimicrobial activity of juniper berry essential oil (Juniperus communis L., Cupressaceae)', Acta Pharmaceutica, 55(4), pp. 417-422. Available at: https://pubmed.ncbi.nlm.nih.gov/16375831/ Preclinical
https://pubmed.ncbi.nlm.nih.gov/16375831/ - Peruč, D., Tićac, B., Broznić, D., Maglica, Ž. et al (2020) 'Juniperus communis essential oil limits the biofilm formation of Mycobacterium avium and Mycobacterium intracellulare on polystyrene in a temperature-dependent manner', International Journal of Environmental Health Research, 32(1), pp. 141-154. doi:10.1080/09603123.2020.1741519 Preclinical
https://doi.org/10.1080/09603123.2020.1741519 - Marković, T., Popović, S., Matić, S., Mitrović, M. et al (2024) 'Insights into Molecular Mechanisms of Anticancer Activity of Juniperus communis Essential Oil in HeLa and HCT 116 Cells', Plants (Basel), 13(17), pp. 2351. doi:10.3390/plants13172351 Preclinical
https://doi.org/10.3390/plants13172351 - Goncalves, A.C., Flores-Felix, J.D., Coutinho, P., Alves, G. and Silva, L.R (2022) 'Zimbro (Juniperus communis L.) as a Promising Source of Bioactive Compounds and Biomedical Activities: A Review on Recent Trends', International Journal of Molecular Sciences, 23(6), pp. 3197. doi:10.3390/ijms23063197 Meta-analysis / review
https://doi.org/10.3390/ijms23063197 - Bais, S., Gill, N.S., Rana, N. and Shandil, S (2014) 'A Phytopharmacological Review on a Medicinal Plant: Juniperus communis', International Scholarly Research Notices, 2014, pp. 634723. doi:10.1155/2014/634723 Meta-analysis / review
https://doi.org/10.1155/2014/634723 - Raina, R., Verma, P.K., Peshin, R. and Kour, H (2019) 'Potential of Juniperus communis L as a nutraceutical in human and veterinary medicine', Heliyon, 5(8), pp. e02376. doi:10.1016/j.heliyon.2019.e02376 Meta-analysis / review
https://doi.org/10.1016/j.heliyon.2019.e02376 - Gordien, A.Y., Gray, A.I., Franzblau, S.G. and Seidel, V (2009) 'Antimycobacterial terpenoids from Juniperus communis L. (Cuppressaceae)', Journal of Ethnopharmacology, 126(3), pp. 500-505. doi:10.1016/j.jep.2009.09.007 Preclinical
https://doi.org/10.1016/j.jep.2009.09.007 - Klancnik, A., Zorko, S., Toplak, N., Kovac, M., Bucar, F., Jersek, B. and Smole Mozina, S (2017) 'Antiadhesion activity of juniper (Juniperus communis L.) preparations against Campylobacter jejuni evaluated with PCR-based methods', Phytotherapy Research, 32(3), pp. 542-550. doi:10.1002/ptr.6005 Preclinical
https://doi.org/10.1002/ptr.6005 - Maurya, A.K., Devi, R., Kumar, A., Koundal, R., Thakur, S., Sharma, A., Kumar, D., Kumar, R., Padwad, Y.S., Chand, G., Singh, B. and Agnihotri, V.K (2018) 'Chemical Composition, Cytotoxic and Antibacterial Activities of Essential Oils of Cultivated Clones of Juniperus communis and Wild Juniperus Species', Chemistry & Biodiversity, 15(9), pp. e1800183. doi:10.1002/cbdv.201800183 Preclinical
https://doi.org/10.1002/cbdv.201800183 - Jegal, J., Park, S., Chung, K., Chung, H.Y., Lee, J., Jeong, E.J., Kim, K.H. and Yang, M.H (2016) 'Tyrosinase inhibitory flavonoid from Juniperus communis fruits', Bioscience, Biotechnology, and Biochemistry, 80(12), pp. 2311-2317. doi:10.1080/09168451.2016.1217146 Preclinical
https://doi.org/10.1080/09168451.2016.1217146 - Lin, T., Lu, C., Chang, K. and Lee, C (2022) 'Juniperus communis extract ameliorates lipopolysaccharide-induced acute kidney injury through the adenosine monophosphate-activated protein kinase pathway', Food Science & Nutrition, 10(10), pp. 3405-3414. doi:10.1002/fsn3.2941 Preclinical
https://doi.org/10.1002/fsn3.2941 - Gao, H., Huang, X., Yang, T., Chang, K., Yeh, L., Hsieh, M., Weng, J. and Tsai, N (2019) 'Juniperus communis Suppresses Melanoma Tumorigenesis by Inhibiting Tumor Growth and Inducing Apoptosis', The American Journal of Chinese Medicine, 47(5), pp. 1171-1191. doi:10.1142/S0192415X19500605 Preclinical
https://doi.org/10.1142/S0192415X19500605 - Huang, N., Huang, R., Huang, X., Chang, K., Lee, C., Hsiao, C., Lee, S. and Tsai, N (2021) 'Evaluation of anticancer effects of Juniperus communis extract on hepatocellular carcinoma cells in vitro and in vivo', Bioscience Reports, 41(7), pp. BSR20211143. doi:10.1042/BSR20211143 Preclinical
https://doi.org/10.1042/BSR20211143 - Lai, W., Lee, S., Chang, K., Huang, X., Li, C., Lee, C., Wu, C., Hsu, H. and Tsai, N (2021) 'Juniperus communis extract induces cell cycle arrest and apoptosis of colorectal adenocarcinoma in vitro and in vivo', Brazilian Journal of Medical and Biological Research, 54(10), pp. e10891. doi:10.1590/1414-431X2020e10891 Preclinical
https://doi.org/10.1590/1414-431X2020e10891 - Peruc, D., Ticac, B., Abram, M., Broznic, D., Stifter, S., Staver, M.M. and Gobin, I (2019) 'Synergistic potential of Juniperus communis and Helichrysum italicum essential oils against nontuberculous mycobacteria', Journal of Medical Microbiology, 68(5), pp. 703-710. doi:10.1099/jmm.0.000962 Preclinical
https://doi.org/10.1099/jmm.0.000962 - European Medicines Agency (HMPC) (2023) 'European Union herbal monograph on Juniperus communis L., galbulus (pseudo-fructus), Revision 1'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-juniperus-communis-l-pseudo-fructus-galbulus-revision-1_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-juniperus-communis-l-pseudo-fructus-galbulus-revision-1_en.pdf - European Medicines Agency (2010) 'European Union herbal monograph on Juniperus communis L., pseudo-fructus'. Traditional / reference
https://scholar.google.com/scholar?q=European%20Union%20herbal%20monograph%20on%20Juniperus%20communis%20L.%2C%20pseudo-fructus - British Herbal Medicine Association (1983) 'British Herbal Pharmacopoeia'. Traditional / reference
https://scholar.google.com/scholar?q=British%20Herbal%20Pharmacopoeia - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - 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 - Four Season Foraging (2025) 'Is Juniper Toxic?'. Available at: https://www.fourseasonforaging.com/blog/2025/4/17/is-juniper-toxic Traditional / reference
https://www.fourseasonforaging.com/blog/2025/4/17/is-juniper-toxic - Zheljazkov, V.D. and Cantrell, C.L. and Semerdjieva, I. and Radoukova, T. and Stoyanova, A. and Maneva, V. and Kacaniova, M. and Astatkie, T. and Borisova, D. and Dincheva, I. and Salamon, I (2021) 'Essential Oil Composition and Bioactivity of Two Juniper Species from Bulgaria and Slovakia', Molecules, 26(12), pp. 3659. doi:10.3390/molecules26123659 Preclinical
https://doi.org/10.3390/molecules26123659
- Zhang, Y., Wu, L., Ma, Z., Cheng, J. and Liu, J (2018) 'Corn silk (Zea mays L.), a source of natural antioxidants with alpha-amylase, alpha-glucosidase, advanced glycation and diabetic nephropathy inhibitory activities', Biomedicine & Pharmacotherapy, 110, pp. 510-517. doi:10.1016/j.biopha.2018.11.126 Preclinical
https://doi.org/10.1016/j.biopha.2018.11.126 - Wang, Y. and others (2023) 'Corn Silk Flavonoids Ameliorate Hyperuricemia via PI3K/AKT/NF-kappaB Pathway', Journal of Agricultural and Food Chemistry, 71(26), pp. 9968-9979. doi:10.1021/acs.jafc.3c03422 Preclinical
https://doi.org/10.1021/acs.jafc.3c03422 - Habtemariam, S (1998) 'Extract of corn silk (stigma of Zea mays) inhibits the tumour necrosis factor-alpha- and bacterial lipopolysaccharide-induced cell adhesion and ICAM-1 expression', Planta Medica, 64(4), pp. 314-318. doi:10.1055/s-2006-957441 Preclinical
https://doi.org/10.1055/s-2006-957441 - Chen, M.Y., Wu, J.M. and others (2025) 'Unlocking Corn Silk's Potential: Bioactive Compounds Targeting Age-Related Diseases', Molecular Nutrition & Food Research, 69(10), pp. e70117. doi:10.1002/mnfr.70117 Meta-analysis / review
https://doi.org/10.1002/mnfr.70117 - Li, Y. and others (2023) 'Diterpenoid and phenolic constituents from corn silk (Zea mays) with PTP1B inhibitory activity', Natural Product Research, 37(24), pp. 4189-4196. doi:10.1080/14786419.2023.2265038 Preclinical
https://doi.org/10.1080/14786419.2023.2265038 - Wang, B. and others (2019) 'Corn Silk (Zea mays) Induced Apoptosis in Human Breast Cancer (MCF-7) Cells via the ROS-Mediated Mitochondrial Pathway', Oxidative Medicine and Cellular Longevity, 2019, pp. 9789241. doi:10.1155/2019/9789241 Preclinical
https://doi.org/10.1155/2019/9789241 - Guo, J. and others (2024) 'Extraction, purification, structural characteristics, and pharmacological activities of the polysaccharides from corn silk: A review', International Journal of Biological Macromolecules, 274, pp. 133433. doi:10.1016/j.ijbiomac.2024.133433 Meta-analysis / review
https://doi.org/10.1016/j.ijbiomac.2024.133433 - Li, X. and others (2025) 'Ultrasound-assisted extraction of anti-inflammatory actives from corn silk (Zea mays L.): Process optimization, machine learning screening, and interaction mechanisms', Ultrasonics Sonochemistry, 118, pp. 107420. doi:10.1016/j.ultsonch.2025.107420 Preclinical
https://doi.org/10.1016/j.ultsonch.2025.107420 - Wang, Y. and others (2024) 'An Umbrella Insight into the Phytochemistry Features and Biological Activities of Corn Silk: A Narrative Review', Molecules, 29(4), pp. 891. doi:10.3390/molecules29040891 Meta-analysis / review
https://doi.org/10.3390/molecules29040891 - Zhang, W. and others (2023) 'Acidic polysaccharide from corn silk: Structural & conformational properties and hepatoprotective activity', International Journal of Biological Macromolecules, 237, pp. 123851. doi:10.1016/j.ijbiomac.2023.123851 Preclinical
https://doi.org/10.1016/j.ijbiomac.2023.123851 - Hasanudin, K., Hashim, P. and Mustafa, S (2012) 'Corn Silk (Stigma Maydis) in Healthcare: A Phytochemical and Pharmacological Review', Molecules. doi:10.3390/molecules171112937 Traditional / reference
https://doi.org/10.3390/molecules171112937 - Caixeta, G.A.B. and dos Santos Reis, D. and Soares, K.I. and de Brito Ramos, I. and Mendes, G.H.L. and others (2025) 'Toxicological Assessment of a Standardized Dry Extract of Zea mays L. (Poaceae) Stigmas During Gestation: Effects on Maternal Parameters and Fetal Outcomes in Wistar Rats', Birth Defects Research, 117(9). doi:10.1002/bdr2.2526 Traditional / reference
https://doi.org/10.1002/bdr2.2526 - Velazquez, D.V.O. and Xavier, H.S. and Batista, J.E.M. and de Castro-Chaves, C (2005) 'Zea mays L. extracts modify glomerular function and potassium urinary excretion in conscious rats', Phytomedicine, 12(5), pp. 363--369. doi:10.1016/j.phymed.2003.12.010 Traditional / reference
https://doi.org/10.1016/j.phymed.2003.12.010
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.