Annona tomentosa

Species of plant

Annona tomentosa

Scientific illustration of Annona tomentosa

Conservation status

Least Concern (IUCN 3.1)[1]

Scientific classification
Kingdom:  | Plantae
Clade:  | Tracheophytes
Clade:  | Angiosperms
Clade:  | Magnoliids
Order:  | Magnoliales
Family:  | Annonaceae
Genus:  | Annona
Species:  |

A. tomentosa

Binomial name
Annona tomentosa

R.E.Fr.

Annona tomentosa is a species of plant in the family Annonaceae. It is native to Bolivia and Brazil.[2] Robert Elias Fries, the Swedish botanist who first formally described the species, named it after the dense woolly hairs (tomentosus in Latin) covering its branches and leaves.[3][4]

## Description

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It is a bush reaching 0.5-1.5 meters in height. The younger branches are covered in yellow-brown, dense, woolly hairs. Its internodes are 1-4 centimeters long. Its petioles are 3-4 millimeters long and covered in dense woolly hairs. Its oblong to oval leaves are 7-19 by 3.5-9 centimeters. The leaves are rounded or indented at their base and come to a tapered point at their tip. The leaves are covered in dense hair on their upper and lower surfaces. The leaves have 8-18 secondary veins emanating at an acute angle from either side of the midrib. Inflorescences emerge between nodes and have 1-2 flowers. Its pedicels are 1.5 centimeters long and have two kidney-shaped bracts that enclose their base. Its rounded sepals come to a point at the tip, are covered in dense woolly hairs on their outer surface, and are hairless on their inner surface. Its outer petals are 1.7 by 2 centimeters and come to a taper point or have blunt tips. The outer surfaces of the outer petals are covered in dense grey-yellow hairs. Its inner petals are 0.6-0.7 by 2 centimeters, have a keeled back and come to a point at their tip. Its stamens are 3 millimeters long. Its ovaries are covered in dense white hairs.[4]

### Reproductive biology

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The pollen of Annona tomentosa is shed as permanent tetrads.[5] Pollinators include Cyclocephala beetles.[6]

### Habitat and distribution

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It has been observed in fields with dry sand dunes.[4]

### Uses

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It is used in Brazilian traditional medicine and extracts from the leaves have been reported to provide antinociceptive pain relief and have anti-inflammatory activity in studies with mice.[7]

## References

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1. ^ Erkens, R.H.J. (2021). "Annona tomentosa". IUCN Red List of Threatened Species. 2021: e.T141033749A176434887. doi:10.2305/IUCN.UK.2021-2.RLTS.T141033749A176434887.en. Retrieved 20 June 2022.
2. ^ "Annona tomentosa R.E.Fr". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved January 6, 2019.
3. ^ Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
4. ^ a b c Fries, Robert Elias (1906). "Studien in der Riedel'schen Anonaceen-Sammlung" [Studies in the Riedel Anonaceae Collection]. Arkiv för Botanik (in German and Latin). 5 (4): 1–24.
5. ^ Walker, James W. (1971). "Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae". Contributions from the Gray Herbarium of Harvard University. 202 (202): 1–130\. JSTOR 41764703.
6. ^ Nascimento, Fabio S.; Costa, Marilza Silva; Silva, Ricardo José; Paulino-Neto, Hipólito Ferreira; Pereira, Mônica Josene Barbosa (2017). "Beetle pollination and flowering rhythm of Annona coriacea Mart. (Annonaceae) in Brazilian cerrado: Behavioral features of its principal pollinators". PLOS ONE. 12 (2): e0171092. Bibcode:2017PLoSO..1271092C. doi:10.1371/journal.pone.0171092. ISSN 1932-6203. PMC 5289549. PMID 28152094.
7. ^ Carneiro, Lilian Uchoa; Silva, Ilna Gomes da; Souza, Mirian Eliza Alves de; Côrtes, Wellington da Silva; Carvalho, Mário Geraldo de; Marinho, Bruno Guimarães (2017). "Antinociceptive and anti-inflammatory activities of leaf extracts from Annona tomentosa R.E.Fr". Journal of Integrative Medicine. 15 (5): 379–387\. doi:10.1016/S2095-4964(17)60349-2. ISSN 2095-4964. PMID 28844215.

Taxon identifiers

Annona tomentosa|

* Wikidata: Q15398395
* Wikispecies: Annona tomentosa
* CoL: 66SD5
* EoL: 1054828
* FNA: 242434757
* GBIF: 5407286
* GRIN: 419829
* IPNI: 72326-1
* IUCN: 141033749
* Open Tree of Life: 3868471
* Plant List: kew-2641051
* POWO: urn:lsid:ipni.org:names:14361-2
* Tropicos: 1600102
* WFO: wfo-0000537966