Plant Comparison

Blessed Thistle vs Blackberry Leaf

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.

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Second plant
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Plant ABlessed ThistleCnicus benedictusAsteraceaeFull monograph →
Plant BBlackberry LeafRubus fruticosusRosaceaeFull monograph →

At a glance

Blessed Thistle and Blackberry Leaf: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 3 pharmacological actions in common.

Blessed ThistleBlackberry Leaf
Constituents33
Pharmacological actions76
Indicated uses109
Safety notes32
Cited sources129
Indicated uses
Only Blessed Thistle
Loss of appetiteBloatingIndigestionLactation support
Shared (6)
Arthritis / joint painCancer (anticancer research)Infection (general)Inflammation (general)Skin irritationWounds
Only Blackberry Leaf
DiarrhoeaOral & throat healthSore throat
Pharmacological actions
Only Blessed Thistle
Appetite stimulantBitter digestive tonic / stomachicDigestive aidGalactagogue (supports lactation)
Shared (3)
Anti-inflammatoryAnticancer (preclinical)Antimicrobial
Only Blackberry Leaf
AntidiarrhoealAntioxidantAstringent

Evidence face-off — shared uses

ConditionBlessed ThistleBlackberry LeafVerdict
Arthritis / joint pain1/102/10Comparable evidence
Cancer (anticancer research)2/102/10Comparable evidence
Infection (general)1/102/10Comparable evidence
Inflammation (general)1/102/10Comparable evidence
Skin irritation1/102/10Comparable evidence
Wounds1/102/10Comparable 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

Sesquiterpene lactones (cnicin, arctigenin, arctiin)[4]

Cnicin is the principal bitter principle and main bioactive compound.

Sesquiterpene lactonesSesquiterpenesArctigenin / arctiin
Flavonoids, lignans and tannins[4]

Additional antioxidant and astringent constituents.

FlavonoidsLignansTannins
Volatile oil[4]

Aromatic constituents of the herb.

Essential (volatile) oil
Tannins (gallotannins and ellagitannins)[8, 9]

The astringent principles of the leaf.

Tannins
Flavonoids and phenolic acids (including gallic acid)[9]

Antioxidant and antibacterial constituents.

Phenolic acidsGallic acidFlavonoids
Vitamin C and minerals (iron)[8]

Minor nutritive constituents of the leaf.

Pharmacological Actions

Anti-inflammatory[1, 4, 7]

Antimicrobial and anti-inflammatory (attributed to cnicin)

Anticancer (preclinical)[5]
Antimicrobial[1, 4, 6]

Antimicrobial and anti-inflammatory (attributed to cnicin)

Appetite stimulant[4, 11]

Appetite stimulant for loss of appetite (approved use under German Commission E)

Bitter digestive tonic / stomachic[4, 11]

Bitter digestive / stomachic for indigestion and dyspepsia (stimulates saliva and gastric secretion)

Digestive aid[4, 11]

Bitter digestive / stomachic for indigestion and dyspepsia (stimulates saliva and gastric secretion)

Galactagogue (supports lactation)[11, 12]

Galactagogue to support breast-milk supply (traditional; no valid clinical-trial evidence)

Anti-inflammatory[4, 6, 7, 8]

Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation

Anticancer (preclinical)[6]
Antidiarrhoeal[5, 8, 9]

Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)

Antimicrobial[5, 6, 9]
Antioxidant[4, 5, 6, 9]
Astringent[8, 9]

Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)

Traditional & Indicated Uses

Loss of appetite[4, 11]Traditional · 1/10

Appetite stimulant for loss of appetite (approved use under German Commission E)

Evidence: 1
Label: Loss of appetite
Arthritis / joint pain[4]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bloating[4, 11]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Cancer (anticancer research)[5]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Indigestion[4, 11]Traditional · 1/10

Bitter digestive / stomachic for indigestion and dyspepsia (stimulates saliva and gastric secretion)

Evidence: 1
Label: Indigestion
Infection (general)[4]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Infection (general)
Inflammation (general)[4]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Lactation support[11, 12]Traditional · 1/10

Galactagogue to support breast-milk supply (traditional; no valid clinical-trial evidence)

Evidence: 1
Label: Lactation support
Skin irritation[4]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[4]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds
Arthritis / joint pain[8]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Arthritis / joint pain
Cancer (anticancer research)[6]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Diarrhoea[8, 9]Traditional · 2/10

Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)

Evidence: 2
Label: Diarrhoea
Infection (general)[9]Traditional · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)
Inflammation (general)[8]Traditional · 2/10

Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation

Evidence: 2
Label: Inflammation (general)
Oral & throat health[8]Traditional · 2/10

Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation

Evidence: 2
Label: Oral & throat health
Skin irritation[8, 9]Traditional · 2/10

inferred from astringent action

Evidence: 2
Label: Skin irritation
Sore throat[8]Traditional · 2/10

Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation

Evidence: 2
Label: Sore throat
Wounds[7, 8, 9]Traditional · 2/10

inferred from astringent action

Evidence: 2
Label: Wounds

Safety, Cautions & Contraindications

Safety note[11]Info

As a member of the daisy family (Asteraceae/ragweed), it can cause allergic reactions in sensitive people; high doses reportedly cause stomach cramps, nausea and vomiting.

Safety note[11]Caution

Avoid during pregnancy because of a traditional uterine-stimulating reputation.

Safety note[12]Info

Although traditionally used to support milk supply, there is no scientifically valid clinical evidence for the galactagogue use.

Safety note[8]Info

Tannin-rich: high or prolonged intake may cause stomach upset or constipation and can reduce the absorption of iron and some medicines taken at the same time.

Safety note[8]Info

Traditional use only; diarrhoea that persists (especially in children) needs medical assessment and attention to rehydration.

External Ids

Gbif: 3127698
Powo: urn:lsid:ipni.org:names:61760-2
Wikidata: Q15548577
Gbif: 8436459
Wikidata: Q13541716

Botanical Description

Branching annual herb with a hairy, reddish, ridged stem and spiny, deeply lobed leaves with prominent pale veins. The flower heads are pale yellow, thistle-like, surrounded by a whorl of spiny, leaf-like bracts, giving the plant its 'spotted thistle' appearance.[4]

Height: 20-60 cm
Habit: Branching, hairy annual herb
Leaves: Spiny, deeply lobed, with prominent pale veins
Flowers: Pale yellow, thistle-like flower heads surrounded by spiny bracts
Stem: Hairy, reddish, ridged, branching
Root: Shallow taproot
Fruit: Ribbed achene with a feathery pappus
Flowering Period: June-August

Scrambling, thorny deciduous shrub (Rosaceae) forming dense thickets, with arching prickly stems that root at the tip. Leaves are palmately compound, usually with 3-5 toothed leaflets. White to pale pink, five-petalled flowers are followed by clusters of small drupelets forming the blackberry fruit, ripening from red to glossy black.[8]

Height: Scrambling/arching canes, typically 1-3 m
Habit: Scrambling, thorny, thicket-forming shrub
Leaves: Palmately compound, usually 3-5 toothed leaflets
Flowers: White to pale pink, five-petalled
Stem: Arching, prickly, rooting at the tip
Root: Woody perennial root system
Fruit: Cluster of drupelets, ripening red to glossy black
Flowering Period: June-August

Habitat

Grows on dry, sunny waste ground, roadsides and rocky slopes; native to the Mediterranean region and Western Asia and naturalised elsewhere as a garden escape.[4]

Native throughout Europe and widely naturalised elsewhere, an aggressive coloniser of hedgerows, woodland edges, scrub and waste ground. 'Rubus fruticosus' is a taxonomically complex aggregate comprising hundreds of closely related microspecies.[8]

Harvesting

The flowering aerial parts are cut as the plant comes into flower, in summer, and dried in a warm, shaded, airy place to preserve the bitter principle cnicin.[4]

Parts: Aerial parts (flowering herb)
Season: Summer, at flowering

Leaves are picked fresh throughout the growing season and dried for tea; berries are picked in late summer once fully ripe.[8]

Parts: Leaf
Season: Leaf throughout the growing season

Traditional Uses

Blessed thistle has a long European folk reputation as a bitter digestive tonic for loss of appetite and dyspepsia (an approved use under German Commission E) and, more anecdotally, as a traditional galactagogue to support breast-milk supply, though robust clinical evidence for the latter is lacking.[4, 11]

Blackberry leaf has a long European folk-medicine tradition as an astringent gargle for sore throat and mouth ulcers, and as a remedy for mild diarrhoea, reflecting its high tannin content; the berries themselves are valued as a nutritious, antioxidant-rich food.[8]

Preparations

Infusion[11]

Dried flowering herb infused briefly in hot water as a bitter digestive tea, taken before meals.

Infusion (tea)[8]

Dried leaf steeped in hot water, taken internally or used as a gargle/mouthwash.

Gargle/mouthwash[8]

A stronger leaf infusion used topically for sore throat and mouth irritation.

Dosage

Infusion[11]

Traditional herbal references suggest around 1-2 g of dried herb per cup, taken before meals, up to three times daily. Educational reference only, not a prescription.

Infusion (tea)[8]

Traditional guidance suggests roughly 2-4 g dried leaf per cup as an infusion, up to three times daily, or used as a gargle at similar strength. Educational reference only, not a prescription.

References

REF-0773, REF-0774, REF-0775, REF-0419, REF-1995, REF-1996, REF-1997, REF-1998, REF-1999, REF-2000
REF-0713, REF-0714, REF-0715, REF-2548, REF-2549, REF-2550, REF-2551

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

References & Sources

  1. Rezig, K., Benkaci-Ali, F., Foucaunier, M.L., Laurent, S. et al (2023) 'HPLC/ESI-MS Characterization of Phenolic Compounds from Cnicus benedictus L. Roots: A Study of Antioxidant, Antibacterial, Anti-Inflammatory, and Anti-Alzheimer's Activity', Chemistry & Biodiversity, 21(1), pp. e202300724. doi:10.1002/cbdv.202300724 Preclinical
    https://doi.org/10.1002/cbdv.202300724
  2. Ahmadimoghaddam, D., Sadeghian, R., Ranjbar, A., Izadidastenaei, Z. and Mohammadi, S (2020) 'Antinociceptive activity of Cnicus benedictus L. leaf extract: a mechanistic evaluation', Research in Pharmaceutical Sciences, 15(5), pp. 463-472. doi:10.4103/1735-5362.297849 Preclinical
    https://doi.org/10.4103/1735-5362.297849
  3. Zhang, J., Shen, S., Zhu, S., Jia, F. et al (2024) 'Cnicus benedictus extract-loaded electrospun gelatin wound dressing for treating diabetic wounds: An in vitro and in vivo study', Journal of Applied Biomaterials & Functional Materials, 22, pp. 22808000241245298. doi:10.1177/22808000241245298 Preclinical
    https://doi.org/10.1177/22808000241245298
  4. Zietal, K., Mirowska-Guzel, D., Nowaczyk, A. and Blecharz-Klin, K (2024) 'Cnicus benedictus: Folk Medicinal Uses, Biological Activities, and In Silico Screening of Main Phytochemical Constituents', Planta Medica. doi:10.1055/a-2401-6049 Traditional / reference
    https://doi.org/10.1055/a-2401-6049
  5. Jalil, D.M., Al-Mahdawi, T.T., Jameel, M.G. and Talal, M (2024) 'In Vitro Evaluate the Antiproliferative Impact of Cnicus Benedictus L. Leaves Methanolic Extract on Cervical Cancer', Asian Pacific Journal of Cancer Prevention, 25(10), pp. 3643-3649. doi:10.31557/APJCP.2024.25.10.3643 Preclinical
    https://doi.org/10.31557/APJCP.2024.25.10.3643
  6. Peng, Y., Jian, Y., Zulfiqar, A., Li, B., Zhang, K., Long, F., Peng, C., Cai, X., Khan, I.A. and Wang, W (2017) 'Two new sesquiterpene lactone glycosides from Cnicus benedictus', Natural Product Research, 31(19), pp. 2211-2217. doi:10.1080/14786419.2017.1295239 Preclinical
    https://doi.org/10.1080/14786419.2017.1295239
  7. Paun, G., Neagu, E., Moroeanu, V., Albu, C., Savin, S. and Lucian Radu, G (2019) 'Chemical and Bioactivity Evaluation of Cnicus benedictus and Eryngium planum Polyphenolic-Rich Extracts', BioMed Research International, 2019, pp. 3692605. doi:10.1155/2019/3692605 Preclinical
    https://doi.org/10.1155/2019/3692605
  8. Gobrecht, P., Gebel, J., Leibinger, M., Zeitler, C., Chen, Z., Grundemann, D. and Fischer, D (2024) 'Cnicin promotes functional nerve regeneration', Phytomedicine, 129, pp. 155641. doi:10.1016/j.phymed.2024.155641 Preclinical
    https://doi.org/10.1016/j.phymed.2024.155641
  9. Avula, B., Katragunta, K., Wang, Y.H., Ali, Z. and Khan, I.A (2022) 'Simultaneous determination and characterization of flavonoids, sesquiterpene lactone, and other phenolics from Centaurea benedicta and dietary supplements using UHPLC-PDA-MS and LC-DAD-QToF', Journal of Pharmaceutical and Biomedical Analysis, 216, pp. 114806. doi:10.1016/j.jpba.2022.114806 Preclinical
    https://doi.org/10.1016/j.jpba.2022.114806
  10. Paun, G., Neagu, E., Albu, C. and Radu, G.L (2015) 'Inhibitory potential of some Romanian medicinal plants against enzymes linked to neurodegenerative diseases and their antioxidant activity', Pharmacognosy Magazine, 11(Suppl 1), pp. S110-S116. doi:10.4103/0973-1296.157709 Preclinical
    https://doi.org/10.4103/0973-1296.157709
  11. Drugs.com (n.d.) 'Blessed Thistle Uses, Benefits & Dosage'. Available at: https://www.drugs.com/npp/blessed-thistle.html Traditional / reference
    https://www.drugs.com/npp/blessed-thistle.html
  12. Drugs and Lactation Database (LactMed) (2021) 'Blessed Thistle'. Available at: https://www.ncbi.nlm.nih.gov/books/NBK501775/ Traditional / reference
    https://www.ncbi.nlm.nih.gov/books/NBK501775/
  1. Zia-Ul-Haq, M., Riaz, M., De Feo, V., Jaafar, H.Z.E. and Moga, M (2014) 'Rubus fruticosus L.: constituents, biological activities and health related uses', Molecules, 19(8), pp. 10998-11029. doi:10.3390/molecules190810998 Traditional / reference
    https://doi.org/10.3390/molecules190810998
  2. Monforte, M.T., Smeriglio, A., Germanò, M.P., Pergolizzi, S., Circosta, C. and Galati, E.M (2018) 'Evaluation of antioxidant, antiinflammatory, and gastroprotective properties of Rubus fruticosus L. fruit juice', Phytotherapy Research, 32(7), pp. 1404-1414. doi:10.1002/ptr.6078 Preclinical
    https://doi.org/10.1002/ptr.6078
  3. Barbieri, F., Montanari, C., Šimat, V., Skroza, D., Čagalj, M. et al (2022) 'Effects of Rubus fruticosus and Juniperus oxycedrus derivatives on culturability and viability of Listeria monocytogenes', Scientific Reports, 12(1), pp. 13158. doi:10.1038/s41598-022-17408-4 Preclinical
    https://doi.org/10.1038/s41598-022-17408-4
  4. Sung, N.S., Uhm, S.H., Kang, H.B., Lee, N.S., Jeong, Y.G., Kim, D.K., Sung, N.Y., Kim, D.S., Yoo, Y.C. and Han, S.Y (2023) 'Rubus fruticosus leaf extract inhibits vascular dementia-induced memory impairment and neuronal loss by attenuating neuroinflammation', Anatomy & Cell Biology, 56(4), pp. 494-507. doi:10.5115/acb.23.195 Preclinical
    https://doi.org/10.5115/acb.23.195
  5. Verma, R., Gangrade, T., Punasiya, R. and Ghulaxe, C (2014) 'Rubus fruticosus (blackberry) use as an herbal medicine', Pharmacognosy Reviews, 8(16), pp. 101-104. doi:10.4103/0973-7847.134239 Traditional / reference
    https://doi.org/10.4103/0973-7847.134239
  6. Gil-Martinez, L., Mut-Salud, N., Ruiz-Garcia, J.A., Falcon-Pineiro, A., Maijo-Ferre, M., Banos, A., De la Torre-Ramirez, J.M., Guillamon, E., Verardo, V. and Gomez-Caravaca, A.M (2023) 'Phytochemicals Determination, and Antioxidant, Antimicrobial, Anti-Inflammatory and Anticancer Activities of Blackberry Fruits', Foods, 12(7), pp. 1505. doi:10.3390/foods12071505 Preclinical
    https://doi.org/10.3390/foods12071505
  7. Van de Velde, F., Esposito, D., Grace, M.H., Pirovani, M.E. and Lila, M.A (2018) 'Anti-inflammatory and wound healing properties of polyphenolic extracts from strawberry and blackberry fruits', Food Research International, 121, pp. 453-462. doi:10.1016/j.foodres.2018.11.059 Preclinical
    https://doi.org/10.1016/j.foodres.2018.11.059
  8. Verma, R., Gangrade, T., Punasiya, R. and Ghulaxe, C (2014) 'Rubus fruticosus (blackberry) use as an herbal medicine', Pharmacognosy Reviews. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC4127818/ Preclinical
    https://pmc.ncbi.nlm.nih.gov/articles/PMC4127818/
  9. Grabek-Lejko, D., Milek, M., Sidor, E., Puchalski, C. and Dzugan, M (2022) 'Antiviral and Antibacterial Effect of Honey Enriched with Rubus spp. as a Functional Food with Enhanced Antioxidant Properties', Molecules, pp. as. doi:10.3390/molecules27154859 Preclinical
    https://doi.org/10.3390/molecules27154859

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.