malva parviflora

{{Short description|Species of flowering plant}}

{{Speciesbox

|image = Malva parviflora small.jpg

|genus = Malva

|species = parviflora

|authority = L.

|synonyms_ref=

|synonyms={{Species list|hidden=yes

| Malva flexuosa | Hornem.

| Malva microcarpa | Pers.

| Malva microcalyx | C.A.Mey.

| Malva musiana | Sennen

| Malva mareotica | Delile ex DC.

| Malva coronata | Pomel

| Malva bivoniana | C.Presl

| Malva polycarpa | Sennen

| Malva trionoides | DC.

| Malva simpliciuscula | Steud.

| Althaea mareotica | Alef.

| Althaea microcarpa | Alef.

| Althaea parviflora | Alef.

| Malva heterocarpa | Shuttlew.

}}

}}

Malva parviflora is an annual or perennial herb that is native to Northern Africa, Southern Europe, and Western and Central Asia and is widely naturalized elsewhere. Common names include cheeseweed,{{GRIN | accessdate=2008-06-02}} cheeseweed mallow, Egyptian mallow, least mallow,{{BSBI 2007 |access-date=2014-10-17 }} little mallow, mallow,{{FloraBase|name=Malva parviflora |id=4961 }} marshmallow, small-flowered mallow,{{NSW Flora Online|genus=Malva |species=parviflora }} small-flowered marshmallow,{{cite web | url = http://www.flora.sa.gov.au/cgi-bin/texhtml.cgi?form=speciesfacts&family=Malvaceae&genus=Malva&species=parviflora | title = Malva parviflora L. | work = Electronic Flora of South Australia Fact Sheet | publisher = State Herbarium of South Australia | access-date = 2008-06-03 | archive-url = https://web.archive.org/web/20150924013846/http://www.flora.sa.gov.au/cgi-bin/texhtml.cgi?form=speciesfacts&family=Malvaceae&genus=Malva&species=parviflora | archive-date = 2015-09-24 | url-status = dead }} and smallflower mallow. It is used in traditional medicine.

Description

M. parviflora has a decumbent or erect habit, growing up to 50–80{{nbsp}}cm in height. The broad leaves have 5–7{{nbsp}}shallow lobes and are 8–10{{nbsp}}cm in diameter. The lobe edges are round-toothed, with varying hairiness. It has small white or pink flowers year-round at the base of leaf stalks; flowers have 4–10{{nbsp}}mm long petals. The 2{{nbsp}}mm seeds are reddish-brown and kidney-shaped.

Newly sprouted plants have hairless, heart-shaped cotyledons with long stalks. These cotyledons are 3–12{{nbsp}}mm long and 3–8{{nbsp}}mm wide. Stalks usually do have hairs. The first leaf is rounder and larger than the others. True leaves are round and weakly lobed with wavy, shallow-toothed edges and a red spot at the leaf base. The plant rapidly grows a deep taproot.

M. parviflora has a diploid chromosome count of 42.

Taxonomy

Malva parviflora was described by Carl Linnaeus and published in Demonstrationes Plantarum in Horto Upsaliensi MDCCLIII on October 3, 1753.{{cite web |url=https://wfoplantlist.org/taxon/wfo-0000449230-2023-12?page=1 |title= Malva parviflora |website= WFO Plant List |access-date=31 May 2024}}

The genus name Malva is from the Latin{{cite web |title=Malva sylvestris |url=https://www.missouribotanicalgarden.org/plantfinder/PlantFinderDetails.aspx?taxonid=282568 |website=Missouri Botanical Garden |access-date=21 January 2025}} word {{lang|la|malva}} 'mallow'.{{cite book |last1=Lewis |first1=Charlton T. |title=An Elementary Latin Dictionary |date=1890 |publisher=American Book Company |location=New York, Cincinnati, and Chicago |url=https://www.perseus.tufts.edu/hopper/text?doc=malva&fromdoc=Perseus%3Atext%3A1999.04.0060 |access-date=21 January 2025}} Mallow was described by Pliny the Elder in his Naturalis Historia (20, LXXXIV).[http://penelope.uchicago.edu/Thayer/L/Roman/Texts/Pliny_the_Elder/20*.html B. Thayer, Pliny the Elder: the Natural History, Liber XX] The species name parviflora means 'small-flowered' and is a compound of the Latin words {{lang|la|parvus}} 'small' and {{lang|la|flores}} 'flowers'.{{cite web |title=Tamarix parviflora |url=https://www.nzpcn.org.nz/flora/species/tamarix-parviflora/#:~:text=Etymology,'%2C%20meaning%20small%2Dflowered. |website=New Zealand Plant Conservation Network |access-date=21 January 2025}}

=Subspecies=

Two subspecies are accepted.{{cite web |title=Malva parviflora L. |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:561830-1 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |access-date=19 February 2025}}

  • Malva parviflora var. parviflora – Mediterranean basin, Sahara, Macaronesia, Arabian Peninsula, and Western Asia to the Caucasus and Pakistan
  • Malva parviflora var. velutina {{small|(J.A.Schmidt) A.Chev.}} – Cape Verde Islands (Santo Antão Island)

Distribution and habitat

M. parviflora typically grows on agricultural lands and in disturbed sites such as roadsides.{{cite web |title=Little mallow (cheeseweed) |url=https://ipm.ucanr.edu/PMG/WEEDS/little_mallow.html |website=UC IPM |publisher=Regents of the University of California |access-date=17 May 2023}} Its native range extends from the Mediterranean, through West Asia, and to Central Asia and can be found in Algeria, Egypt, Libya, Morocco, Tunisia, Kuwait, Afghanistan, Cyprus, Iran, Israel, Jordan, Lebanon, Syria, Turkey, Armenia, Azerbaijan, Turkmenistan, Albania, Bosnia and Herzegovina, Greece, Croatia, Italy, Malta, Spain, France, and Portugal. The species is widely naturalized elsewhere, including in North America since the 19th century. It is a naturalized weed in Australia.{{cite journal |last1=Sharifi-Rad |first1=Javad |last2=Melgar-Lalanne |first2=Guiomar |last3=Hernández-Álvarez |first3=Alan Javier |last4=Taheri |first4=Yasaman |last5=Shaheen |first5=Shabnum |last6=Kregiel |first6=Dorota |last7=Antolak |first7=Hubert |last8=Pawlikowska |first8=Ewelina |last9=Brdar-Jokanović |first9=Milka |last10=Rajkovic |first10=Jovana |last11=Hosseinabadi |first11=Tahereh |last12=Ljevnaić-Mašić |first12=Branka |last13=Baghalpour |first13=Navid |last14=Mohajeri |first14=Maryam |last15=Fokou |first15=Patrick Valere Tsouh |last16=Martins |first16=Natália |title=Malva species: Insights on its chemical composition towards pharmacological applications |journal=Phytotherapy Research |date=11 November 2019 |doi=10.1002/ptr.6550}}

Toxicity

M. parviflora accumulates pollutants such as cadmium and chromium. In nitrogen-rich soils,{{cite web |title=Foraged Mallow (Cheeseweed) |url=https://specialtyproduce.com/produce/Foraged_Mallow_Cheeseweed_10423.php |website=Specialty Produce |access-date=31 May 2024}} the plant's leaves and seeds can be toxic to cattle and poultry due to an accumulation of nitrates. If consumed in large amounts, the plant can damage energy homeostasis in horses, possibly due to its cyclopropene fatty acids.

Uses

The entire plant is edible and can be eaten both raw and cooked. It has a mild flavor similar to chard and a mild, earthy aroma.

M. parviflora has been used in infusions, decoctions, and poultices as part of traditional medicine.{{Cite web |url=http://www.floraiberica.es/floraiberica/texto/pdfs/03_060_09_Malva.pdf |title=Malva |website=Flora Iberica |access-date=2024-05-20}} In Mexico, M. parviflora is consumed as a quelite and used in traditional medicine to treat wounds and problems with digestion.{{Cite web |url=http://132.248.9.195/ptd2005/00322/0343654/Index.html |title=Análisis biodirigido de Malva parviflora para validar su uso tradicional como auxiliar en el tratamiento de la gastritis |date=2005-04-29 |access-date=2024-05-20 |last=Mendiola Almaraz |first=Lorena}} In the 20th century, naturalist {{ill|Alfonso Herrera Fernández|lt=Alfonso Herrera Fernández|es|Alfonso Herrera Fernández}} noted that the dried leaves were used in moisturizing poultices and that the flowers were used in infusions to induce perspiration.{{Cite web |url=http://www.medicinatradicionalmexicana.unam.mx/apmtm/termino.php?l=3&t=malva-parviflora |title=Malva |website=Biblioteca digital de la medicina tradicional mexicana |language=Spanish |access-date=2024-05-20}} Particularly in Zapotitlán, Puebla, the roots are used in infusions to treat dysentery. In Jordan, the leaves are used in infusions and poultices as an emollient, laxative, carminative, and anti-hemorrhoid. In Lebanon, the leaves are used in decoctions to treat catarrhs, kidney infections, kidney stones, respiratory infections, and constipation. In Ethiopia, the roots are used to treat asthma and wounds.

Few clinical trials have tested the efficacy of M. parviflora's traditional uses. Preclinical studies have found that extracts from various parts of the plant have antimicrobial and antifungal properties. However, this effect is usually weaker than that of standard antibiotics. The roots and leaves have antioxidant and anti-inflammatory properties. The plant may have an anti-diabetic effect, but the effect's strength is disputed. In mice, M. parviflora extracts have shown potential to treat hypertension and Alzheimer's.