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Light Blue Snakeweed

Stachytarpheta jamaicensis (L.) Vahl

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provided by eFloras
Medicinal.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
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Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Description

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Subshrubs or robust perennial herbs, 0.6-2 m tall. Branches 4-angled when young, sparsely pubescent to subglabrous. Petiole winged; leaf blade elliptic to oblong-ovate, 2.4-8 X 4.5 cm, papery, subglabrous, base elongated, margin serrate, apex acuminate, veins 5 or 6 pairs. Spikes few to 20 cm or longer; bracts ca. 5 mm, membranous. Calyx ca. 6 mm, glabrous. Corolla dark blue; tube 7-12 mm, slightly curved. Capsules included in calyx.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
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eFloras

Distribution

provided by eFloras
Naturalized weed in Fujian, Guangdong, Guangxi, Hainan, Taiwan, Yunnan [tropical America, naturalized throughout tropics].
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copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Habitat

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Shaded grassy places in valleys; 300-600 m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Synonym

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Verbena jamaicensis Linnaeus, Sp. Pl. 1: 19. 1753.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 3 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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eFloras

Derivation of specific name

provided by Flora of Zimbabwe
jamaicensis: of Jamaica.
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Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Stachytarpheta jamaicensis (L.) Vahl Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=148810
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
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Flora of Zimbabwe

Description

provided by Flora of Zimbabwe
Shrubby perennial herb, 0.3-1.2 cm tall. Stems sometimes woody at the base, hairy at the nodes, sometimes purplish. Leaves elliptic, oblong, obovate or spathulate, often decurrent into the petiole, hairless or with sparse hairs on the veins beneath; margin crenate-dentate; petiole up to c. 1 cm long. Inflorescence in slender terminal spikes 14-50 cm long. Bracts 5-8 mm long, lanceolate to ovate-lanceolate, not longer than the fruiting calyx, hairless. Calyx 5-6 mm long, tubular, ellipsoid, 4-toothed with 2 central teeth shorter. Corolla blue or violet, rarely almost white; tube 8-11 mm long, exserted up to 5 mm, slightly curved; lobes c. 3 mm long.
license
cc-by-nc
copyright
Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Stachytarpheta jamaicensis (L.) Vahl Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=148810
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
original
visit source
partner site
Flora of Zimbabwe

Frequency

provided by Flora of Zimbabwe
Very locally frequent
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copyright
Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Stachytarpheta jamaicensis (L.) Vahl Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=148810
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
original
visit source
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Flora of Zimbabwe

Worldwide distribution

provided by Flora of Zimbabwe
Native of tropical America but now a more or less pantropical weed.
license
cc-by-nc
copyright
Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Stachytarpheta jamaicensis (L.) Vahl Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=148810
author
Mark Hyde
author
Bart Wursten
author
Petra Ballings
original
visit source
partner site
Flora of Zimbabwe

Stachytarpheta jamaicensis

provided by wikipedia EN

Parantica aglea on Stachytarpheta jamaicensis

Stachytarpheta jamaicensis is a species of plant in the family Verbenaceae, native throughout the Caribbean,[3] including Florida.[4] It has many common names including blue porterweed, blue snake weed, bastard vervain, Brazilian tea, Jamaica vervain,[5] light-blue snakeweed,[6] and, in St. Croix, worryvine.source? It usually is found along country roadsides, and it also grows well as a ruderal plant on disturbed terrain.

A similar plant, Stachytarpheta cayennensis, which is an invasive species in Florida,[7] is sometimes mistaken for S. jamaicensis.[8]

It is unclear whether S. indica is a separate species.[9]

Medicinal uses

The fresh leaves are consumed in bush tea as a “cooling” tonic and blood cleanser, to treat “asthma” and “ulcerated stomachs”.[10]

Tea brewed from this species has been shown to cause a dose-dependent "fall in [the] blood pressure" of normal rabbits. However, the tea has also been observed to cause a "mild non-dose dependent systematic toxicity" in various tissues throughout the body, "such as congestion, fatty changes, and necrosis in liver, blood vessels, kidney, lung and testis, but the brain, eyes, intestines and heart were essentially normal."[11]

Gallery

References

  1. ^ Bárrios, S.; Copeland, A. (2021). "Stachytarpheta jamaicensis". IUCN Red List of Threatened Species. 2021: e.T96816126A192132046. doi:10.2305/IUCN.UK.2021-3.RLTS.T96816126A192132046.en. Retrieved 8 December 2022.
  2. ^ "The Plant List: A Working List of All Plant Species". Retrieved 25 September 2015.
  3. ^ "USDA Plants Database".
  4. ^ [https://florida.plantatlas.usf.edu/Plant.aspx?id=703}
  5. ^ "Stachytarpheta jamaicensis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 19 January 2018.
  6. ^ USDA, NRCS (n.d.). "Stachytarpheta jamaicensis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 1 December 2015.
  7. ^ "Florida Invasive Species Council".
  8. ^ "Blue porterweed". 17 September 2021.
  9. ^ www.flowersofindia.net, Indian Snakeweed
  10. ^ Brian N. Becker, Integration Of Medicinal And Culinary Herbs In An Agroforestry Combination On St. Croix, United States Virgin Islands (PDF)
  11. ^ Professor MacDonald Idu. "The Plant called Medicine (PDF)" (PDF).

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Stachytarpheta jamaicensis: Brief Summary

provided by wikipedia EN
Parantica aglea on Stachytarpheta jamaicensis

Stachytarpheta jamaicensis is a species of plant in the family Verbenaceae, native throughout the Caribbean, including Florida. It has many common names including blue porterweed, blue snake weed, bastard vervain, Brazilian tea, Jamaica vervain, light-blue snakeweed, and, in St. Croix, worryvine.source? It usually is found along country roadsides, and it also grows well as a ruderal plant on disturbed terrain.

A similar plant, Stachytarpheta cayennensis, which is an invasive species in Florida, is sometimes mistaken for S. jamaicensis.

It is unclear whether S. indica is a separate species.

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