Plant Comparison

Water Hyssop vs Speedwell

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.

First plant
Second plant
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Plant AWater HyssopBacopa monnieriPlantaginaceaeFull monograph →
Plant BSpeedwellVeronica officinalisPlantaginaceaeFull monograph →

At a glance

Water Hyssop and Speedwell: both belong to the Plantaginaceae family; they share 3 indicated uses (arthritis / joint pain, inflammation (general), skin irritation); 2 pharmacological actions in common.

Water HyssopSpeedwell
Constituents22
Pharmacological actions54
Indicated uses78
Safety notes22
Cited sources2012
Indicated uses
Only Water Hyssop
Cancer (anticancer research)Cognitive functionInsomnia / sleeplessnessMemory
Shared (3)
Arthritis / joint painInflammation (general)Skin irritation
Only Speedwell
BloatingBronchitisCoughIndigestionRespiratory support
Pharmacological actions
Only Water Hyssop
Anticancer (preclinical)Neuroprotective / cognition supportSedative / sleep support
Shared (2)
Anti-inflammatoryAntioxidant
Only Speedwell
Digestive aidExpectorant

Evidence face-off — shared uses

ConditionWater HyssopSpeedwellVerdict
Arthritis / joint pain1/101/10Comparable evidence
Inflammation (general)1/102/10Comparable evidence
Skin irritation1/101/10Comparable 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

Triterpenoid saponins (bacosides A and B)[1, 4]

Principal bioactive saponins linked to the plant's neuroprotective and cognition-enhancing effects.

SaponinsTriterpene saponins
Flavonoids and alkaloids[6]

Additional antioxidant and neuroactive constituents.

FlavonoidsAlkaloids
Iridoid glycosides (aucubin, catalpol, verproside, verminoside)[8]

Anti-inflammatory constituents that inhibit pro-inflammatory mediators in lung cells.

Iridoid glycosidesGlycosides
Flavonoids and phenolic acids[8, 9, 10]

Antioxidant constituents.

Phenolic acidsFlavonoids

Pharmacological Actions

Anti-inflammatory[9, 13]
Anticancer (preclinical)[3, 14, 15]

Bacopa monnieri (Brahmi) extract and its saponins (bacopaside II, bacopasaponins) inhibit proliferation and induce apoptosis in colon and lung cancer cells (preclinical).

Antioxidant[6, 8, 9, 13]
Neuroprotective / cognition support[1, 3, 4, 5, 6, 7, 10, 13, 16, 17]
Sedative / sleep support[1, 13]
Anti-inflammatory[8]

Anti-inflammatory and antioxidant

Antioxidant[1, 5, 6, 8]

Anti-inflammatory and antioxidant

Digestive aid[4, 11]

Mild digestive / stomach tonic (indigestion)

Expectorant[8, 11, 12]

Traditional expectorant for cough and respiratory complaints (iridoid glycosides inhibit lung inflammation) - a standardised extract suppressed COX-2 and eotaxin via the NF-kB pathway in human lung epithelial cells

Traditional & Indicated Uses

Arthritis / joint pain[13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Cancer (anticancer research)[3, 14, 15]Traditional · 2/10

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).

Evidence: 2
Label: Cancer (anticancer research)
Cognitive function[13, 16, 17]Moderate · 6/10

inferred from neuroprotective action

Evidence: 6
Label: Cognitive function
Inflammation (general)[13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Insomnia / sleeplessness[13]Traditional · 1/10

inferred from sedative action

Evidence: 1
Label: Insomnia / sleeplessness
Memory[13, 16, 17]Moderate · 6/10

inferred from neuroprotective action

Evidence: 6
Label: Memory
Skin irritation[13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Arthritis / joint pain[8]Traditional · 1/10

inferred from anti-inflammatory action

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

inferred from digestive action

Evidence: 1
Label: Bloating
Bronchitis[8, 11, 12]Traditional · 2/10

inferred from expectorant action

Evidence: 2
Label: Bronchitis
Cough[8, 11, 12]Traditional · 2/10

Traditional expectorant for cough and respiratory complaints (iridoid glycosides inhibit lung inflammation) - a standardised extract suppressed COX-2 and eotaxin via the NF-kB pathway in human lung epithelial cells

Evidence: 2
Label: Cough
Indigestion[4, 11]Traditional · 2/10

Mild digestive / stomach tonic (indigestion)

Evidence: 2
Label: Indigestion
Inflammation (general)[8, 11, 12]Traditional · 2/10

Traditional expectorant for cough and respiratory complaints (iridoid glycosides inhibit lung inflammation) - a standardised extract suppressed COX-2 and eotaxin via the NF-kB pathway in human lung epithelial cells

Evidence: 2
Label: Inflammation (general)
Respiratory support[8, 11, 12]Traditional · 2/10

inferred from expectorant action

Evidence: 2
Label: Respiratory support
Skin irritation[11]Traditional · 1/10

Soothing for skin irritation (topical)

Evidence: 1
Label: Skin irritation

Safety, Cautions & Contraindications

Safety note[13, 16, 17]Caution

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.

Safety note[13, 16, 17, 18]Info

Duke (2002) does not include a dedicated entry for Bacopa monnieri (water hyssop/brahmi) in the Handbook of Medicinal Herbs, Second Edition.

Safety note[11]Caution

Traditional use only; clinical evidence is limited, so a persistent cough or digestive complaint needs medical assessment. Safety in pregnancy and breastfeeding is not established.

Safety note[2, 8]Info

Buy from a reputable source: Veronica officinalis is frequently adulterated with the related Veronica chamaedrys.

External Ids

Gbif: 3171169
Wikidata: Q1366575
Gbif: 3172049
Wikidata: Q156402

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]

Height: 5-15 cm (trailing/creeping)
Habit: Low, creeping, succulent perennial herb
Leaves: Small, fleshy, spatula-shaped, opposite
Flowers: Small, pale lavender to white, four- to five-petalled, borne singly in leaf axils
Stem: Trailing, succulent, rooting at the nodes
Root: Fine roots at each node along the creeping stem
Fruit: Small ovoid capsule
Flowering Period: Year-round in warm, wet climates

Low, creeping, mat-forming perennial herb with softly hairy, oval, finely toothed leaves along trailing stems that root as they spread. Small, pale lilac-blue flowers with darker veining are borne in slender upright spikes rising from the leaf axils.[8]

Height: 5-40 cm (upright flowering spikes; creeping stems low)
Habit: Low, creeping, mat-forming perennial herb
Leaves: Softly hairy, oval, finely toothed, opposite
Flowers: Small, pale lilac-blue with darker veining, in slender upright axillary spikes
Stem: Trailing, softly hairy, rooting as it spreads
Root: Fine roots along the creeping stem
Fruit: Small, flattened, heart-shaped capsule
Flowering Period: May-August

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 heath, moorland, open woodland, grassland and banks on acidic, well-drained soils; native to Europe and naturalised in North America.[8]

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.

Parts: Leaf, Whole Plant
Season: During active growth (warm season)

The flowering aerial parts are cut in summer while in flower and dried in a warm, shaded, airy place; the closely related Veronica chamaedrys is a frequent adulterant, so careful identification (or a reputable source) is important.[8]

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

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]

Speedwell has a long European folk history as a mild digestive tonic and traditional expectorant for cough and respiratory complaints, and has also been used topically as a soothing wash for irritated skin; modern research on its iridoid glycosides supports a molecular basis for the traditional respiratory use.

Preparations

Standardised extract[1, 4]

Extract standardised to bacoside content, taken as capsules or tablets; the form used in most clinical trials for cognitive support.

Not documented

Dosage

Standardised extract[1, 4]

Clinical trials for cognitive support commonly use extracts providing around 300 mg dried extract daily, taken for at least several weeks, since benefits accrue gradually. Educational reference only, not a prescription.

Not documented

References

REF-0740, REF-0741, REF-0742, REF-2107, REF-2108, REF-2109, REF-2110, REF-2111, REF-2112, REF-2113, REF-2114, REF-2115
REF-1378, REF-1379, REF-1380, REF-2552, REF-2554, REF-2555, REF-3123

Drug Class Interactions

Safety note[19, 20]Caution
Drug Class: sedatives-cns-depressants
Mechanism: Bacopa (brahmi) is traditionally used as a calming, sedative herb; taken with sedatives, sleeping tablets or other central-nervous-system depressants (including alcohol) it may add to drowsiness and slowed reactions.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

Not documented

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. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. World Health Organization (2002) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
    https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  1. Mocan, A., Vodnar, D.C., Vlase, L., Crisan, O. and others (2015) 'Phytochemical Characterization of Veronica officinalis L., V. teucrium L. and V. orchidea Crantz from Romania and Their Antioxidant and Antimicrobial Properties', International Journal of Molecular Sciences, 16(9), pp. 21109-21127. doi:10.3390/ijms160921109 Preclinical
    https://doi.org/10.3390/ijms160921109
  2. Crisan, G., Tamas, M., Miclaus, V., Krausz, T. and others (2007) 'A comparative study of some Veronica species', Revista Medico-Chirurgicala a Societatii de Medici si Naturalisti din Iasi, 111(1), pp. 280-284. Preclinical
    https://scholar.google.com/scholar?q=A%20comparative%20study%20of%20some%20Veronica%20species
  3. Korzhikova, E.B (1991) 'Speedwell (Veronica officinalis)', Feldsher i Akusherka, 56(2), pp. 37-39. Traditional / reference
    https://scholar.google.com/scholar?q=Speedwell%20%28Veronica%20officinalis%29
  4. Scarlat, M., Sandor, V., Tamas, M. and Cuparencu, B (1985) 'Experimental anti-ulcer activity of Veronica officinalis L. extracts', Journal of Ethnopharmacology, 13(2), pp. 157-163. doi:10.1016/0378-8741(85)90003-0 Preclinical
    https://doi.org/10.1016/0378-8741(85)90003-0
  5. Wojcik, E (1973) 'Phytochemical studies of the Veronica officinalis L', Acta Poloniae Pharmaceutica, 30(2), pp. 195-201. Available at: https://pubmed.ncbi.nlm.nih.gov/4703978/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/4703978/
  6. Wojcik, E (1977) 'Occurrence of 6-hydroxyluteolin 7-glucoside in the herb of Veronica officinalis L', Acta Poloniae Pharmaceutica, 34(3), pp. 295-298. Available at: https://pubmed.ncbi.nlm.nih.gov/906876/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/906876/
  7. Bellia, G. and Pieroni, A (2015) 'Isolated, but transnational: the glocal nature of Waldensian ethnobotany, Western Alps, NW Italy', Journal of Ethnobiology and Ethnomedicine, 11, pp. 37. doi:10.1186/s13002-015-0027-1 Traditional / reference
    https://doi.org/10.1186/s13002-015-0027-1
  8. (2017) 'Veronica officinalis Product Authentication Using DNA Metabarcoding and HPLC-MS Reveals Widespread Adulteration with Veronica chamaedrys', Frontiers in Pharmacology. doi:10.3389/fphar.2017.00378 Traditional / reference
    https://doi.org/10.3389/fphar.2017.00378
  9. Wojcik, E (1973) 'Flavonoids of the Veronica officinalis L. herb', Acta Poloniae Pharmaceutica, 30(4), pp. 447-451. Available at: https://pubmed.ncbi.nlm.nih.gov/4762340/ Preclinical
    https://pubmed.ncbi.nlm.nih.gov/4762340/
  10. Salehi, B., Shivaprasad Shetty, M., V. Anil Kumar, N., Zivkovic, J., Calina, D., Oana Docea, A. and others (2019) 'Veronica Plants - Drifting from Farm to Traditional Healing, Food Application, and Phytopharmacology', Molecules, 24(13), pp. 2454. doi:10.3390/molecules24132454 Preclinical
    https://doi.org/10.3390/molecules24132454
  11. HerbaZest (n.d.) 'Veronica (Speedwell)'. Available at: https://www.herbazest.com/herbs/veronica Traditional / reference
    https://www.herbazest.com/herbs/veronica
  12. Grundemann, C., Garcia-Kaufer, M., Sauer, B., Stangenberg, E., Konczol, M., Merfort, I., Zehl, M. and Huber, R (2012) 'Traditionally used Veronica officinalis inhibits proinflammatory mediators via the NF-kB signalling pathway in a human lung cell line', Journal of Ethnopharmacology, 145(1), pp. 118--126. doi:10.1016/j.jep.2012.10.039 Preclinical
    https://doi.org/10.1016/j.jep.2012.10.039

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.