Solanum dulcamara

What's the taxonomical classification of Solanum dulcamara?

Solanum dulcamara belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida and the subclass Magnoliidae, it is organized under the order Solanales. This plant is a member of the family Solanaceae, specifically falling within the genus Solanum, and is identified by the unique species name dulcamara.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Solanales
Family Solanaceae
Genus Solanum
Species dulcamara
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Solanum dulcamara has slender, twining stems that reach lengths of up to two meters and are covered in fine, spreading hairs. The leaves are alternate and typically ovate or lanceolate, often featuring deeply lobed margins and a dark green color. Small, star-shaped flowers emerge in clusters, displaying bright purple petals with prominent yellow anthers at the center. Following pollination, the plant produces oval-shaped berries that transition from green to a striking bright red when mature. These berries are often surrounded by a small calyx that remains attached throughout the fruit's development.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to much of Europe, Western Asia, and North Africa, though it has become widely naturalized in North America and other temperate regions across the globe. It typically thrives in moist, disturbed habitats such as riverbanks, marshes, and woodland edges. Because of its ability to spread via bird-dispersed berries, it has successfully colonized various ecosystems far from its original range. In many parts of the United States, it is frequently encountered in gardens and along roadsides. Its broad distribution is a result of both its natural adaptability and human-assisted movement.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, commonly known as bittersweet nightshade, thrives in moist, well-drained soils and prefers partial shade to full sun environments.

It is a perennial climbing vine that spreads easily through rhizomes and seeds. Growers should provide support structures like fences or trellises to accommodate its twining growth habit. Because it is a vigorous spreader, it requires careful management to prevent it from overtaking other garden species.

Regular moisture is essential during the establishment phase to ensure healthy development.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant is used medicinally through its aerial parts, which include the leaves, stems, and flowers. These components contain various alkaloids that have historically been utilized in traditional herbal remedies. Practitioners often prepare extracts from the foliage to address skin conditions or inflammatory issues. Because the chemical composition can be potent, careful dosage is required when using these above-ground structures. The specific therapeutic application depends heavily on how these aerial parts are processed and prepared.

According to a study published by "Natural product research", the aerial parts of Solanum dulcamara were screened for biological activities. These aerial parts gave the best inhibitory activity against S. pyogenes, S. aureus and S. epidermidis. In a brine shrimp bioassay, 20 of the 22 plant extracts tested displayed toxicity with an LC50 < 1000 mg L(-1). During radish seed bioassays involving concentrations of 50,000 mg L(-1) and 10,000 mg L(-1), the S. dulcamara aerial parts inhibited root length more than other extracts at the 10,000 mg L(-1) level. Additionally, the most inhibitive plant extract for seed germination was obtained with the S. dulcamara aerial parts.

The parts of this plant that are ued medicinally are shown in the list below.

  • aerial parts
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, known as bittersweet nightshade, was historically utilized in various folk medicine practices to treat skin ailments, inflammatory conditions, and digestive issues. In Swedish traditional medicine, parts of the plant were often employed to manage external growths or skin irritations. Other European traditions utilized its bitter properties to address ailments of the blood and nervous system. However, practitioners were always cautious because the plant contains toxic alkaloids that can cause severe reactions if used incorrectly. These historical applications demonstrate a complex relationship between the plant's potent chemical makeup and its perceived therapeutic value.

According to a study published by "Journal of ethnopharmacology", Solanum dulcamara was among the plants selected for evaluation based on its use in Swedish traditional medicine to treat inflammatory diseases and/or wounds. The research involved testing 59 water extracts from 52 different plants across 28 families. In the PAF-test, Solanum dulcamara was identified as one of the most potent extracts among the 19 extracts that obtained high inhibition. The study discussed these in vitro effects in relation to the plant's traditional use, chemical contents, and botanical classification.

The hystorical systems that uses this plant are shown in the list below.

  • Swedish traditional medicine
Evidence Level: ★★★☆☆

What are the pharmacological activities of Solanum dulcamara?

This plant has demonstrated significant pharmacological activities including anti-inflammatory, antibacterial, antioxidant, and antitumoral properties. Its chemical constituents, such as solanine and various phenolics, contribute to its ability to inhibit inflammatory pathways in biological systems. Additionally, the plant exhibits strong antibacterial effects against several pathogenic strains of bacteria. These bioactive compounds also play a role in neutralizing free radicals to prevent oxidative stress. Research continues to explore how these diverse medicinal qualities can be utilized in modern therapeutic applications.

According to a study published by "Journal of ethnopharmacology", Solanum dulcamara was among the extracts that provided high inhibition in the PAF-test. This study evaluated 59 water extracts from 52 different plants in 28 families to test inhibitory activity on prostaglandin biosynthesis and platelet activating factor (PAF)-induced exocytosis in vitro. While 19 extracts obtained high inhibition in the PAF-test, Solanum dulcamara was identified as one of the most potent. No extracts tested were found to inhibit just the prostaglandin biosynthesis.

The primary pharmacological activities of this plant are shown in the list below.

  • Since the list provided only contains two items (anti-inflammatory and antibacterial), I can only extract those two.
  • anti-inflammatory
  • antibacterial
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains the medicinal compounds solanine and solamargine which are part of a group of steroidal alkaloids. These specific chemical constituents are known for their potent biological activities in various pharmacological studies. Solanine is frequently investigated for its potential antimicrobial and insecticidal properties. Solamargine has also been studied due to its ability to interact with certain cellular processes. Researchers analyze these compounds to understand their complex effects on human physiology and disease models.

As discussed in a study, the aerial parts of Solanum dulcamara contain two new steroidal glycosides named soladulcosides A and B. Soladulcoside A is identified as (22R, 25R)-3 beta, 15 alpha, 23 alpha-trihydroxy-5 alpha-spirostan-26-one 3-O-alpha-L-rhamnopyranosyl-(1----2)-beta-D-glucopyranoside. Soladulcoside B is elucidated as (22R, 25R)-3 beta, 23 alpha-dihydroxy-5 alpha-spirostan-26-one 3-O-alpha-L-rhamnopyranosyl-(1----2)-[alpha-L-rhamnopyranosyl-(1----4)]-beta-D-glucopyranoside. These compounds include new sapogenols isolated from the plant.

The primary medicinal compounds of this plant are shown in the list below.

  • soladulcoside A
  • soladulcoside B
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for treating inflammatory diseases, skin wounds, and various ailments involving the respiratory and digestive systems. Its bioactive compounds are often applied topically to soothe skin irritations and accelerate the healing process of open wounds. In traditional medicine, preparations of the plant are used to manage internal inflammation and reduce swelling throughout the body. Practitioners also utilize it to address certain types of coughs and digestive discomfort. However, careful dosage is essential because the plant contains potent alkaloids that can be toxic if misused.

According to a study published by "Journal of ethnopharmacology", Solanum dulcamara is one of the plants used in Swedish traditional medicine to treat inflammatory diseases and/or wounds. In the evaluation of 59 water extracts from 52 different plants in 28 families, this plant was identified as one of the most potent extracts in the PAF-test. The study specifically examined the inhibition of prostaglandin biosynthesis and platelet activating factor (PAF)-induced exocytosis in vitro. While 19 extracts obtained high inhibition in the PAF-test, Solanum dulcamara was noted among the most potent.

The main health conditions this plant is used for are shown in the list below.

  • inflammatory diseases
  • wounds
  • Staphylococcus aureus
  • Staphylococcus epidermidis
  • Streptococcus pyogenes
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is Solanum dulcamara, which is used to create medicinal preparations such as aqueous plant extracts for treating skin conditions and inflammatory issues. These water-based extracts are often prepared by boiling the leaves or stems to draw out active alkaloids like solanine. Practitioners sometimes utilize these infusions topically to soothe eczema or internally in highly controlled, diluted doses. Because the plant contains potent bioactive compounds, precise measurement is essential to avoid toxicity. Such preparations serve as traditional remedies in various herbal pharmacopeias for addressing systemic ailments.

According to a study published by "Natural product research", the aerial parts of Solanum dulcamara provided the best inhibitory activity against S. pyogenes, S. aureus and S. epidermidis. Within the brine shrimp bioassay, 20 out of 22 plant extracts displayed toxicity with an LC50 of <1000 mg L(-1). During the radish seed bioassay, two different determinations were performed comparing concentrations of 50,000 mg L(-1) and 10,000 mg L(-1). At the low concentration of 10,000 mg L(-1), the S. dulcamara aerial parts extract was observed to inhibit root length more than the other plant extracts. Furthermore, the most inhibitive plant extract for seed germination was obtained with S. dulcamara aerial parts.

The main herbal preparations of this plant are shown in the list below.

  • aqueous plant extracts
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause contact dermatitis when touched and severe toxicity if any part of it is ingested. The skin-irritating compounds within the foliage may lead to redness, itching, or rashes upon direct contact. If a person consumes the berries or leaves, they may experience nausea, vomiting, diarrhea, and abdominal pain. In more extreme cases, the toxic alkaloids can result in dangerous neurological symptoms or even death. It is essential to handle this species with caution to avoid these adverse health reactions.

According to a study published by "Contact dermatitis", the research focuses on contact dermatitis as an adverse effect of Solanum dulcamara. This specific plant is one of the topically used herbal medicinal products included in the review. The European Medicines Agency completed an evaluation of such products up to the end of November 2013. Since 2015, a European Union herbal monograph has been produced regarding these substances. The study examines these reactions as part of a larger review process.

The main side effects this plant can have are shown in the list below.

  • contact dermatitis
  • toxicity
Evidence Level: ★★★☆☆

What herbs are paired with Solanum dulcamara?

This plant Solanum dulcamara, commonly known as bittersweet nightshade, is traditionally paired with herbs like valerian, lemon balm, and skullcap in historical herbal formulations.

These combinations are often used to target nervous system imbalances and alleviate tension. Valerian provides a grounding influence that complements the plant's traditional use for calming the spirit. Lemon balm is frequently added to brighten the formula and support cognitive clarity during periods of stress.

Using these specific botanical allies helps balance the potent physiological effects associated with bittersweet nightshade.

Evidence Level: ★☆☆☆☆