Sida acuta
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| Common wireweed | |
|---|---|
| File:Sida acuta (Jangli-methi) in Hyderabad, AP W2 IMG 0084.jpg | |
| Scientific classification Edit this classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malvales |
| Family: | Malvaceae |
| Genus: | Sida |
| Species: | S. acuta
|
| Binomial name | |
| Sida acuta | |
| Synonyms | |
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Sida acuta, the common wireweed,[3] is a species of flowering plant in the mallow family, Malvaceae. It is believed to have originated in Central America, but today has a pantropical distribution and is considered a weed in some areas.[4]
In northern Australia, Sida acuta is considered an invasive species, and the beetle Calligrapha pantherina has been introduced as a biological control agent in an attempt to control the plant.[5]
Description
[edit | edit source]Plant
[edit | edit source]Undershrub, with mucilaginous juice, aerial, erect, cylindrical, branched, solid, green.
Leaves
[edit | edit source]Alternate, simple, lanceolate to linear, rarely ovate to oblong, obtuse at the base, acute at the apex, coarsely and remotely serrate; petiole much shorter than the blade; stipulate, stipules free-lateral, unequally paired at the node, reticulate venation.
Inflorescence
[edit | edit source]Cymose
Flower
[edit | edit source]Small, axillary, 2–3 in a cluster; pedicels jointed at the middle, epicalyx absent, complete, bisexual, regular, actinomorphic, hypogynus, pentamerous, yellow.
Calyx
[edit | edit source]Sepals: five, gamosepalous, campanulate, slightly accrescent, persistent, valvate.
Corolla
[edit | edit source]Petals: five, polypetalous but slightly connate below and jointed with the staminal column, twisted.
Androecium
[edit | edit source]Stamens many, monadelphous, arranged on the staminal column; staminal column is shorter than the petals, divided above into numerous filaments, anthers monothecous, reniform, basifixed, filament short, extrorse. Pollen are spherical with spikes, size is approximately 90 microns.
Gynoecium
[edit | edit source]Carples: five, syncarpous, ovary superior, penta or multilocular with axile placentation, one ovule in each locule; style 1, passing through the staminal tube; stigma globular, correspond to the number of carpels.
Fruit
[edit | edit source]A schizocarpic mericarp, seed 1 in each mericarp.
Classification and identification (Bentham and Hooker's system)
[edit | edit source]Class: Dicotyledonae
[edit | edit source]I) Reticulate venation.
II) Flower pentamerous.
Sub-class: Polypetalae
[edit | edit source]I) Petals free.
Series: Thalamiflorae
[edit | edit source]I) Flower hypogynus; ovary superior.
Order: Malvales
[edit | edit source]I) Stamens indefinite, monadelphous.
II) Ovary 5 carpellary, placentation axile.
Family: Malvaceae
[edit | edit source]I) Plant: mucilaginous.
II) Leaves: simple with free lateral stipule.
III) Flower: bisexual, petals: five, twisted; monadelphous stamen, anther one-celled, reniform.
Genus: Sida
[edit | edit source]I) Staminal column without teeth at apex.
II) Flowers without epicalyx.
III) Ovule 1 in each locule; seed 1 in each mericarp.
Species: S.acuta
[edit | edit source]I) Leaf base obtuse, apex acute.
Floral formula of Sida acuta
[edit | edit source]Br,+,K⁵,C⁵^,A_,G(⁵)
Names
[edit | edit source]Vernacular name
[edit | edit source]Source:[6]
- Sanskrit: bala
- Bengali: kureta/berela[7] (in Tripura)
- Hindi: kareta/kharenti
- Odia (Oriya): siobala
- Gujrati: bala/jangli menthi
- Marathi: chikana
- Malayalam: malatanni
- Tamil: malaidangi,Arivaal Mooku Pachilai
- Telugu: nelabenda
- Kannada: vishakaddi
- Sinhala: gasbevila
- Burmese: katsayna
- Yoruba: Ìsékètu
- mutsvairo: Shona language
- Asante Twi: Tweta
References
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