Note: This is a project under development. The articles on this wiki are just being initiated and broadly incomplete. You can Help creating new pages.

Difference between revisions of "Salix nigra - Black willow"

From Ayurwiki
Jump to: navigation, search
(Chemical Composition)
(Chemical Composition)
Line 10: Line 10:
  
 
==Chemical Composition==
 
==Chemical Composition==
White-willow bark, according to Pelletier and Caventou, consists of bitter, yellow coloring matter, green fatty matter, tannic acid, resin, etc. The chief constituent, however, as with all the willows, is the glucosid salicin (see Salicinum)<ref name="chemical composition"/>
+
Analysis has shown a brown, resinous, acrid substance, insoluble in potassium hydroxide and probably containing pelletonin, two oils soluble in potassium hydroxide - one dark brown and acrid, the other yellow - tannin, gum, potassium sulphate and carbonate, potassium chloride, calcium phosphate and carbonate, silica, alumina, lignin, etc.  
 +
An alkaloid, Pyrethrine, yielding pyrethric acid, is stated to be the active principle.<ref name="chemical composition"/>
  
 
==Common names==
 
==Common names==

Revision as of 13:52, 14 April 2018

Salix nigra, black willow

Salix nigra (black willow) is a species of willow native to eastern North America, from New Brunswick and southern Ontario west to Minnesota, and south to northern Florida and Texas.

Uses

sexual erethism, irritability, passion, libidinous thoughts, irritability, Toot cystitis, sexual abuse, ovaritis, cystitis, prostatitis.

Parts Used

inner bark, Leaves.

Chemical Composition

Analysis has shown a brown, resinous, acrid substance, insoluble in potassium hydroxide and probably containing pelletonin, two oils soluble in potassium hydroxide - one dark brown and acrid, the other yellow - tannin, gum, potassium sulphate and carbonate, potassium chloride, calcium phosphate and carbonate, silica, alumina, lignin, etc. An alkaloid, Pyrethrine, yielding pyrethric acid, is stated to be the active principle.[1]

Common names

Language Common name
Kannada
Hindi Akarkara
Malayalam Akkarakaaram
Tamil
Telugu
Marathi NA
Gujarathi NA
Punjabi NA
Kashmiri NA
Sanskrit Akarkarabh
English Pellitory


Habit

tree

Identification

Leaf

Kind Shape Feature
simple deciduous petiolate, alternate, distichous, (2–)5–15 cm long, (0.3–)0.5–1.5(–2) cm wide, falcate or lanceolate, leaf margins serrate or serrulate, leaf apices acuminate, leaf bases cuneate or obtuse or rounded

[2]

Flower

Type Size Color and composition Stamen More information
Unisexual 14-18cm long Yellow, Circular Androecium. Stamens 3–7 per flower. Flowering February or March or April or May. Inflorescences axillary or terminal, catkins, flowers sessile. Flowers unisexual or pistillate or staminate. Perianth. Calyx absent. Corolla absent. Gynoecium. Ovaries superior, pistils 1 per flower. Gynoecium syncarpous, 2 carpels per flower, styles 1 per pistil, styles 0.2 mm long.

Fruit

Type Size Mass Appearance Seeds More information
Fruits capsules 0.3–0.8 cm long reddish-brown, fruit maturation 1 years seeds many, ovoid. {{{6}}}

Other features

List of Ayurvedic medicine in which the herb is used

Where to get the saplings

Mode of Propagation

Seeds, Cuttings.

How to plant/cultivate

Succeeds in most soils, including wet, ill-drained or intermittently flooded soilst[3]

Commonly seen growing in areas

wet soil condition, along streams and lakes.

Photo Gallery

References

External Links