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Home » Plant infomation

Aerva javanica  (Burm. f.) Juss. ex Schult.

   

Botanical Name

:

Aerva javanica (Burm. f.) Juss. ex Schult.

English Name

:

Javanese Wool

Synonym(s)

:

Aerva persica (Burm. f.) Merrill

Family

:

Amaranthaceae

 

General Info

Description

Perennial herb, frequently woody and suffruticose or growing in erect clumps, 0.3-1.5 m, branched from about the base with simple stems or the stems with long ascending branches. Stem and branches terete, striate, more or less densely whitish- or yellowish-tomentose or pannose, when dense the indumentum often appearing tufted. Leaves alternate, very variable in size and for, from narrowly linear to suborbicular, more or less densely whitish- or yellowish-tomentose but usually more thinly so and greener on the upper surface, margins plane or more or less involute (when strongly so the leaves frequently more or less falcate-recurved), sessile or with a short and indistinct petiole or the latter rarely to c. 2 cm in robust plants. Flowers dioecious. Spikes sessile, cylindrical, dense and stout (up to c. 10 x 1 cm), to slender and interrupted with lateral globose clusters of flowers and with some spikes apparently pedunculate by branch reduction; male plants always with more slender spikes (but plants with slender spikes may not be male); upper part of stem and branches leafless, the upper spikes thus forming terminal panicles; bracts 0.75-2.25 mm, broadly deltoid-ovate, hyaline, acute or obtuse with the obscure midrib ceasing below the apex, densely lanate throughout or only about the base or apex, persistent; bracteoles similar, also persistent. Female flowers with outer 2 tepals 2-3 mm, oblong-obovate to obovate-spathulate, lanate, acute to obtuse or apiculate at the tip, the yellowish midrib ceasing well below the apex; inner 3 slightly shorter, elliptic-oblong, more or less densely lanate, acute, with a narrow green vitta along the midrib, which extends for about two-thirds the length of each tepal; style slender, distinct, with the two filiform, flexuose stigmas at least equaling it in length; filaments reduced, anthers absent. Male flowers smaller, the outer tepals 1.5-2.25 mm, ovate; filaments delicate, the anthers about equaling the perianth; ovary small, style very short, stigmas rudimentary. Utricle 1-1.5 mm, rotund, compressed. Seed 0.9-1.25 mm, round, slightly compressed, brown or black, shining and smooth or very faintly reticulate" (Dassanayake, 1981).

Herb Effects

Insecticide, antiinflammatory, diurectic, demulcent and anticalculus (plant)

Links

PIER

Chemistry

Active Ingredients

Ascorbic acid (plant); a flavone glycoside (root); hentriacontane. oleanolic acid. sitosterol and its glucosides (leaf).

Chemistry of Active Ingredients
Product Categories

Name

CAS#

IUPAC Name

Formula

Structure

Product Categories
Ascorbic acid Not Available 2-(1,2-dihydroxyethy
l)-4,5-dihydroxy-fur
an-3-one
C6H8O6 Click Here To Enlarge
Hentriacontane 630-04-6 Hentriacontane C31H64 Click Here To Enlarge
Oleanolic acid 508-02-1 10-hydroxy-2,2,6a,6b
,9,9,12a-heptamethyl
-1,3,4,5,6,6a,7,8,8a
,10,11,12,
13,14b-tetradecahydr
opicene-4a-carboxyli
c acid
C30H48O3 Click Here To Enlarge
Sitosterol 5779-62-4 17-(5-ethyl-6-methyl
-heptan-2-yl)-10,13-
dimethyl-2,3,4,7,8,9
,11,12,14, 15,16,17
-dodecahydro-1H-cycl
openta[a]phenanthren
-3-ol
C29H50O Click Here To Enlarge

Pharmacology

Medicinal Use

In hepatitis, kidney stones and as an antiinflammatory (plant); for cleaning teeth (roots).

Reference

Chandel et al., Biodiversity in Medicinal and Aromatic Plants in India.


Saleh NA. Mansour RM. Markham KR. An acylated isorhamnetin glycoside from Aerva javanica. Phytochemistry. 1990;29(4):1344-5.

Dassanayake, M. D., gen. ed. 1981. A revised handbook to the flora of Ceylon. Vol. I. Amerind Pub. Co., New Delhi. pp. 31-32.

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