Comments
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Not yet certainly found in Pakistan, but may possibly occur in the S., or be eventually introduced. Recorded by Stewart from “Baluch.,
Stocks, teste Burkill”. There is no Stocks specimen of this species at Kew, nor did Boissier cite one; the record therefore seems dubious.
The description of the perianth given above refers only to this species in the eastern part of its range. In Africa not only the hermaphrodite flowers here described occur, but also female flowers in which the stamens are reduced and bear no anthers. In these the tepals are often but not invariably longer and more gradually narrowed, and the stigmas are longer. Functionally male flowers apparently occur also; these have a perianth similar to the hermaphrodite flowers, but the stigma is subcapitate and scarcely papillose, or the branches very short.
I do not find the style character used by Backer in the Flora Malesiana to separate the present species from Aerva sanguinolenta to be real. Given hermaphrodite flowers of both, the stigma lengths appear to me to be roughly similar.
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Description
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Perennial herb, frequently woody and sufirutescent below, prostrate to decumbent or erect, (0.1-) 0.3-2 m, branched from the base and often also above. Stem and branches terete, striate, ± densely lanate with whitish or yellowish, ± shaggy hairs. Leaves alternate, suborbicular to lanceolate-elliptic, cuneate at the base, rounded and apiculate to acute at the apex, usually densely lanate or canescent on the lower surface and more thinly so above, those of the main stem 10-50 x 5-35 mm, those of the branches and upper part of the stem smaller; petioles up to 2 cm. Spikes sessile, solitary or usually in axillary clusters on the main stems or long to very short axillary branches, 0.4-1.5 (-2) x 0.3-0.4 cm, divergent, cylindrical, silky white to creamy, forming a long inflorescence leafy to the ultimate spikes. Flowers (in Asia) hermaphrodite. Outer 2 tepals hyaline, oval-oblong, abruptly contracted at the tip to a distinct mucro formed by the excurrent nerve, 0.75-1.25 mm, inner 3 slightly shorter and narrower, acute with a broad central green vitta along the midrib, which extends for about three-quarters of their length and is furnished with a thickened border of two lateral nerves; all tepals densely lanate dorsally. Style and two short, divergent stigmas together subequalling the ovary in length at anthesis.
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Distribution
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W, E Nepal: India, Java, Philippines, Saudi Arabia, Sri Lanka; Tropical Africa.
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Distribution
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Distribution: Widespread in the drier parts of the tropics and subtropics of the Old World, from W. Africa, north and S. to Egypt, Madagascar and the Seychelles to E. Asia, Arabia and Iran, E. to Malaysia, Indonesia, the Philippines and New Guinea.
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Elevation Range
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200-500 m
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Habitat
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Herbs
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Derivation of specific name
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lanata: woolly
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- Mark Hyde, Bart Wursten and Petra Ballings
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- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Aerva lanata (L.) Juss. ex Schult. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=122400
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- Mark Hyde
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- Bart Wursten
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- Petra Ballings
Description
provided by Flora of Zimbabwe
Erect to prostrate, sometimes scrambling perennial herb, often somewhat woody near the base. Stems numerous from the base, 0.3-2 m long, often branching higher up, striate, more or less densely woolly with whitish to yellowish hairs. Leaves alternate, 1-5 cm long, more or less broadly ovate-elliptic, lanceolate or spathulate, more or less densely woolly, usually denser beneath; base of the lamina running down into the petiole, sometime rendering the petiole obsolete. Inflorescences in axillary, sessile silky whitish spikes, 0.5-2 cm long, solitary or in clusters, together at the ends of branches often appearing as one inflorescence separated by very small bract-like leaves. Flowers unisexual or bisexual, very small, greenish, often almost hidden in the mass of silky hairs.
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- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Aerva lanata (L.) Juss. ex Schult. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=122400
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- Mark Hyde
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- Bart Wursten
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- Petra Ballings
Frequency
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Locally frequent
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- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Aerva lanata (L.) Juss. ex Schult. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=122400
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- Mark Hyde
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- Bart Wursten
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- Petra Ballings
Worldwide distribution
provided by Flora of Zimbabwe
Widespread in Old World tropics and subtropics.
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- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Aerva lanata (L.) Juss. ex Schult. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=122400
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- Mark Hyde
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- Bart Wursten
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- Petra Ballings
Aerva lanata
provided by wikipedia EN
Aerva lanata, the mountain knotgrass,[3] is a woody, prostrate or succulent, perennial herb in the family Amaranthaceae, native to Asia, Africa. It has been included as occurring in Australia by the US government,[1] but it is not recognised as occurring in Australia by any Australian state herbarium.[4] The plant sometimes flowers in the first year.[5][6]
Aerva lanata is a common weed which grows wild everywhere in the plains of India. The root has a camphor-like aroma. The dried flowers which look like soft spikes, are sold under the commercial names Buikallan and Boor. It is one of the plants included in Dasapushpam, the ten sacred flowers of Kerala.
Description
Aerva lanata From Kerala.
Mountain knotgrass is an annual with a branching, somewhat woody root system. The stems are mostly straggling and sprawling and spread widely, sometimes as much as 6 feet (1.8 m) in length. The often stalkless leaves are alternate, oval and 0.5 to 1.5 in (13 to 38 mm) long. They grow from whitish papery stipules with two lobes and red bases. The tiny clusters of two or three flowers grow in the leaf axils. The flowers are about 0.1 in (2.5 mm) long, pink, green or dull white. The flowers are normally self-pollinated. Flowering time is from May to October.[7]
Distribution and habitat
Aerva lanata is native to tropical Africa, South Africa, Madagascar, Saudi Arabia and tropical Asia.[1] The species prefers damper sites than Aerva javanica and can be found in open forests on mountain slopes, on waste and disturbed ground, deserted cultivation and coastal scrub[5] and at altitudes from sea level to 900 m (3,000 ft).[8] It is a common weed in arable fields and bare patches of ground.
Uses
This plant is used for food for people and animals. The whole plant, especially the leaves, is edible. The leaves are put into soup or eaten as a spinach or as a vegetable. The plant provides grazing for stock, game and chickens. The plant is used as a traditional medicine for snakebites.[7]
Though the plant has a lot of medicinal properties it’s quite commonly used in South India during the Tamil festival “Pongal” and Telugu harvest festival "Sankranti" as the flower of this plant is used for decoration. In Telugu language it's also called as "Pindi kommalu" and in Tamil language it’s also called as Ponga-Poo, which is derived from the names Pongal – A Harvest festival of Tamil Nadu and Poo in Tamil means Flower. Other common Tamil names used for this plant are "Kannu Pillai Poo" and "Siru Poolai".[1]
The plant is also used as a talisman against evil spirits, a good-luck talisman for hunters, and a talisman for the well-being of widows.[6]
In the traditional medicine of India, the juice of crushed Aerva lanata root is used for jaundice therapy.[9]
References
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^ a b c "Aerva lanata". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2008-04-27.
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^ "Aerva lanata (L.) Juss. ex Schult. record n° 177". African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. Archived from the original on 2007-10-12. Retrieved 2008-04-27.
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^ "Aerva lanata". EPPO Global Database. European and Mediterranean Plant Protection Organization (EPPO). Retrieved 2019-10-06.
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^ "Search: SPECIES: Aerva lanata". The Australasian Virtual Herbarium. Council of Heads of Australasian Herbaria. Retrieved 2018-03-20.
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^ a b Royal Botanic Gardens, Kew. "Amaranthaceae by C. C. Townsend". Flora Zambesiaca. Board of Trustees of the Royal Botanic Gardens, Kew. 9 (part:1). Retrieved 2008-04-28.
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^ a b "Aerva lanata (Linn.) Juss. [family AMARANTHACEAE]". Global Plants. JSTOR. Retrieved 2019-09-05.
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^ a b "Aerva lanata". Medicinal Plants Used For Snake Treatment. ToxicologyCentre.com. Archived from the original on 2013-12-13. Retrieved 2013-12-10.
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^ Robert Freedman (20 January 1998). "Famine Foods - AMARANTACEAE". Purdue University. Archived from the original on 6 April 2008. Retrieved 20 April 2008.
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^ Tewari D, Mocan A, Parvanov ED, Sah AN, Nabavi SM, Huminiecki L, Ma ZF, Lee YY, Horbańczuk JO, Atanasov AG. Ethnopharmacological Approaches for Therapy of Jaundice: Part I. Front Pharmacol. 2017 Aug 15;8:518. doi: 10.3389/fphar.2017.00518.
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Aerva lanata: Brief Summary
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in
Bhuvanagiri, Andhra Pradesh Aerva lanata, the mountain knotgrass, is a woody, prostrate or succulent, perennial herb in the family Amaranthaceae, native to Asia, Africa. It has been included as occurring in Australia by the US government, but it is not recognised as occurring in Australia by any Australian state herbarium. The plant sometimes flowers in the first year.
Aerva lanata is a common weed which grows wild everywhere in the plains of India. The root has a camphor-like aroma. The dried flowers which look like soft spikes, are sold under the commercial names Buikallan and Boor. It is one of the plants included in Dasapushpam, the ten sacred flowers of Kerala.
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in Bhuvanagiri, Andhra Pradesh 
