Nodular trefoil | Medicinal plant in the Akhdar Encyclopedia

Plant name

nodular ligament

Latin name

Polygonum aviculare L.

Common names

The knotted truffle, the truffle, the shepherd's staff

foreign names

Common knotgrass, French: Renouée des oiseaux

The group

nodular or acidic

Habitat and Geographic Distribution

Widespread in temperate and subtropical regions

Botanical description

A perennial herb, ascending or prostrate, glabrous, branching from the base.

The leaves are simple, alternate, and variegated; the lower leaves on the main branches are large, while those on the lateral and upper branches are small, entire, semi-peculiar, uterine or ovate, acutely apex, entire margin, and punctate.

The spathe is 10-2 x 25 mm or smaller, membranous, silvery, and dilobed.

The inflorescences are axillary, solitary (the stipules are fused in a sheath-like pattern), about 1 mm long.

The calyx is simple, composed of 1 mm; the peduncle is about 1-0.5 mm long.

The flowers are hermaphroditic, small (3-5 mm) or in uterine clusters, measuring five nearly equal segments, elliptical stamens, sclerotized filaments.

The male flowers are 0.5 x 2-1.5 mm, with sclerotia ending in 3 mm.

The ovary is superior, solitary, above which are 3 mm, ovate, tertiary, and primary stigmas.

The fruit is an acinus, ribbed, black, luminous, and striated. Flowering occurs from March to September.

Used part

flowering plant

chemical components

Quecetrimonium hyperoside, hyperoside, avicularin (most important: avicularin 0.1-1%), flavonoids, isovitexin, vitexin, quercitrin (partially water-soluble compound 1%), silicic acid, tannins, salivary substances, and silicon acid, scopoletin, umbelliferone (including: umbelliferone), hydroxycoumarins, aviculin, lignans

Properties and medical uses

The plant possesses antihypertensive and anticoagulant properties, affecting the cyclooxygenase.

It is used for bronchitis, chest colds, and inflammations of the mouth and throat.

A decoction of the plant is used topically as an antiperspirant, in the treatment of tuberculosis, as an expectorant, and to treat coughs, kidney and bladder diseases, simple urinary retention, digestive ulcers, gout, and rheumatism.

A decoction of the plant is also used topically to treat skin infections, stop bleeding, and heal slow-healing wounds.

In China, it is used to treat vaginal discharge, itching, jaundice, and to expel tapeworms.

Precautions: Increased salivation may be observed.

Habitat: It grows in neglected areas, roadsides, and along shores.

It prefers moist, acidic soils and thrives in sunny and partially shaded locations. It is considered a weed in agricultural fields.

Side effects and precautions

An increase in saliva production may be observed.

the environment

The plant grows in neglected areas, along roadsides, and on embankments.

It prefers moist, acidic soils and thrives in sheltered and partially shaded locations. It is considered a harmful weed in agricultural fields.

Agriculture and productivity

It is propagated by seed in spring, with easy germination.

It can also be propagated by division in spring and autumn.

Larger sections are sown directly in the permanent location, while smaller sections are kept in the nursery until their roots are strong.

The plant produces a very large quantity of seeds, which are a staple food for many bird species.

Rumex crispus L. Lapathum crispum (L.) Scop., Rumex patientia var. crispus (L.) Kuntze

History and Heritage

The genus name "polys" comes from the Greek word meaning "knee," referring to the numerous gonus and avicular nodes of this plant. The poison is also a descriptor for birds that eat its seeds.

Medical note

This information is for educational purposes only and does not constitute medical advice.

Poisonous or potent plants should only be used under the supervision of a qualified physician or pharmacist.

تنبيه صحي

هذه المعلومات للتثقيف ولا تمثل وصفة علاجية.

استشر طبيباً أو صيدلانياً قبل استخدام أي نبات طبي، خاصة أثناء الحمل أو الرضاعة أو عند تناول أدوية مزمنة.

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