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Agrimonia procera
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Agrimonia
Species:	A. procera
Binomial name
	Agrimonia procera; Wallr.

Agrimonia procera is a species of flowering plant belonging to the family Rosaceae.^[1]

It is native to Europe and Southern Africa.^[1]

Description

A herbaceous perennial plant which grows to about 1 m tall, with a branched or unbranched green stem covered in glandular hairs which are 2 mm long or slightly longer. The leaves are pinnate with 3-6 pairs of oval, distinctly serrated primary leaflets, an irregular number of secondary leaflets, and a similar or slightly larger terminal leaflet. The underside of the leaves are studded with yellow, shiny glands which produce a sweet aroma. Flowers are arranged in long racemes at the top of the stem(s). Each flower has 5 yellow petals, 5-20 stamens and 2 carpels. The hypanthium develops into a characteristic brown, oval or bell-shaped fruit with deep lateral grooves and a double ring of hooked bristles around its centre, which contains 1 or 2 achenes.^[2]

It is easy to confuse fragrant agrimony with common agrimony, which has a similar distribution and habitat. The key differences are that fragrant agrimony has longer hairs (and no short hairs) on the stem, leaves that are more deeply and acutely serrated and with more glands on the underside, and fruits with shorter grooves and reflexed bristles. These hooked bristles are the most useful feature to use when it is not possible to compare the two species side-by-side: if you imagine they emerge from the fruit's "equator", then most of the bristles point "southwards" or at most straight out in common agrimony, but in fragrant agrimony some distinctly point "northwards" (towards the stalk).^[2]^[3]

A mature fruit of fragrant agrimony
Fruits of common agrimony, for comparison

Ecology

The habitat of fragrant agrimony in Britain and Ireland is woodland margin, scrub, road verges and tall grassland, on circumneutral (neither acid nor alkaline), sometimes damp, soils. It is confined to the lowlands, being known only up to 335 m at Fortingall, in Perthshire.^[4] It is a bigger, bushier and more leafy plant than common agrimony and is far less common, although its overall range is similar. It is most abundant along rides in oak or sometimes ash woods, or in field edges nearby.^[5] It flowers rather later than common agrimony, typically from late July in southern England.

Little is known about the interactions between fragrant agrimony and other species. The British database of insects and their food plants^[6] lists only one aphid, Acyrthosiphon malvae (Mosley, 1841) that has been observed on this plant. The hooked seeds are ideal for facilitating dispersal by animals, but which are primarily involved is not known.

Distribution

The native distribution of fragrant agrimony is thought to include almost all of Europe and South Africa, but none of the territory between.^[7] This strikingly disjunct distribution is highly unusual and could be due to transportation of the seeds by migrating wild birds or a more recent introduction by humans. In South Africa, however, it is considered native and is officially categorised as "least concern",^[8] although some sources, such as the citizen science website iNaturalist,^[9] describe it as invasive there.

Uses

Fragrant agrimony is palatable to livestock and occurs in grazed woodland, meadows and pastures. Like other species of agrimony, it is reported to have beneficial effects on the health of experimental animals and to reduce inflammation in cells in vitro. Chemicals under investigation include the bitter-tasting compound agrimoniin and various flavonoids.^[10]

Despite having a bitter taste, agrimony is popular in herbal teas and is often touted as having health benefits in humans, although medical sources stress that evidence about efficacy and safety is generally lacking.^[11] Claims about its use in the past may be exaggerated: the Roman author Celsus, who was influential in medicine for over a thousand years, only mentions agrimony as a possible cure for snake bites.^[12] Most advertisements for herbal teas specify common rather than fragrant agrimony, but it is not always clear that people have differentiated between the two.^[13]

References

^ ^a ^b "Agrimonia procera Wallr. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 10 February 2021.
^ ^a ^b Stace, C.A. (2019). New Flora of the British Isles. Middlewood Green: C&M Floristics. ISBN 978-1-5272-2630-2.
^ Rich, T.C.G. "Plant Crib: Agrimonia eupatoria/A. procera" (PDF).
^ BRC. "Agrimonia procera". Online Atlas of the British and Irish Flora.
^ Lockton, Alex; Whild, Sarah (2015). The Flora and Vegetation of Shropshire. Montford Bridge: Shropshire Botanical Society.
^ "Insects and their food plants".
^ Royal Botanic Gardens, Kew. "Agrimonia procera Wallr". Plants of the World Online.
^ South African National Biodiversity Institute. "Red List of South African Plants". Retrieved 7 February 2022.
^ "Scented agrimony". iNaturalist.
^ Graeber, T. (2018). "Agrimonia procera exerts antimicrobial effects, modulates the expression of defensins and cytokines in colonocytes and increases the immune response in lipopolysaccharide-challenged piglets". BMC Veterinary Research. 14: 346. doi:10.1186/s12917-018-1680-0. PMC 6238359.
^ "Agrimony - Uses, Side Effects, and More". WebMD. Retrieved 7 February 2022.
^ Celsus, Aurus Cornelius. De Medicina. Retrieved January 4, 2022.
^ Slaughton, John. "9 Surprising Benefits Of Agrimony". Organic Facts. Retrieved 7 February 2022.

External links

Media related to Agrimonia procera at Wikimedia Commons

[POWO-1] "Agrimonia procera Wallr. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 10 February 2021.

[Stace-2] Stace, C.A. (2019). New Flora of the British Isles. Middlewood Green: C&M Floristics. ISBN 978-1-5272-2630-2.

[3] Rich, T.C.G. "Plant Crib: Agrimonia eupatoria/A. procera" (PDF).

[4] BRC. "Agrimonia procera". Online Atlas of the British and Irish Flora.

[5] Lockton, Alex; Whild, Sarah (2015). The Flora and Vegetation of Shropshire. Montford Bridge: Shropshire Botanical Society.

[6] "Insects and their food plants".

[7] Royal Botanic Gardens, Kew. "Agrimonia procera Wallr". Plants of the World Online.

[8] South African National Biodiversity Institute. "Red List of South African Plants". Retrieved 7 February 2022.

[9] "Scented agrimony". iNaturalist.

[10] Graeber, T. (2018). "Agrimonia procera exerts antimicrobial effects, modulates the expression of defensins and cytokines in colonocytes and increases the immune response in lipopolysaccharide-challenged piglets". BMC Veterinary Research. 14: 346. doi:10.1186/s12917-018-1680-0. PMC 6238359.

[11] "Agrimony - Uses, Side Effects, and More". WebMD. Retrieved 7 February 2022.

[12] Celsus, Aurus Cornelius. De Medicina. Retrieved January 4, 2022.

[13] Slaughton, John. "9 Surprising Benefits Of Agrimony". Organic Facts. Retrieved 7 February 2022.

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PROFILPELAJAR.COM

Agrimonia procera

Description

Ecology

Distribution

Uses

References

External links

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