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Blue porterweed (Stachytarpheta jamaicensis)

Dlium Blue porterweed (Stachytarpheta jamaicensis)

Pecut kuda or blue porterweed (Stachytarpheta jamaicensis) is a species of plant in Verbenaceae, 1-3 meters high, woody stems although small, tapering roots, the entire surface of the stem is brown and dark green with green leaves and blue flowers.

S. jamaicensis has leaves 1-4.5 inches wide and up to 2.5 inches long, light green all year round in all seasons but turning dark green when exposed to sunlight all day. The leaves are round or oval with small serrated edges arranged opposite the main stem.





The inflorescences are purple or bluish-purple, the petals located on the stalk are green and scaly. Each stalk consists of several flowers that are clustered along a line.

Flowers are 0.3 inches wide, crown consisting of 5 petals or odd. Bud along the stalk, then begin to bloom sequentially from the bottom of the stalk to the top of the stalk. The flower only lasts a day, then it is replaced by another bud at the top.

This plant grows in roadsides, untreated gardens, meadows, open areas that receive sunlight and generally thrives on sandy soils at elevations of up to 700 meters.

This plant contains alkaloids and glycos to treat tonsillitis, sore throat, cough and Hepatitis A. Traditional medicine uses this plant to treat infections, urinary stones, rheumatism, irregular menstruation and vaginal discharge.

Flowers, roots and leaves are often used to treat bladder infections, rheumatism, irregular menstruation and vaginal discharge. Flowers and stalks to treat hepatitis A. Leucorrhoea which is often experienced by women is overcome by using boiled root water. Plants can also be used as ornamental plants because they flower all year round.

TAXON

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Lamiales
Family: Verbenaceae
Tribe: Duranteae
Genus: Stachytarpheta Vahl in Enum. Pl. Obs. 1: 205 (1804)
Species: Stachytarpheta jamaicensis (L.) Vahl in Enum. Pl. Obs. 1: 206 (1804)

HOMOTYPIC SYNONYMS

Abena jamaicensis (L.) Hitchc. in Rep. (Annual) Missouri Bot. Gard. 4: 117 (1893)
Cymburus urticifolius Salisb. in Parad. Lond. 1: t. 53 (1806)
Stachytarpheta indica var. jamaicensis (L.) Razi in Half-Yearly J. Mysore Univ., N.S., B 7(4): 63 (1946)
Valerianoides jamaicensis (L.) Medik. in Philos. Bot. 1: 178 (1789)
Verbena jamaicensis L. in Sp. Pl.: 19 (1753)
Vermicularia decurrens Moench in Suppl. Meth.: 150 (1802)
Zappania jamaicensis (L.) Lam. in Tabl. Encycl. 1: 59 (1791)

HETEROTYPIC SYNONYMS

Stachytarpheta bogoriensis Zoll. & Moritzi in A.Moritzi, Syst. Verz. Java: 52 (1846)
Stachytarpheta indica f. monstrosa Moldenke in Phytologia 1: 433 (1940)
Stachytarpheta jamaicensis f. albiflora S.S.Ying in Coloured Ill. Fl. Taiwan 6: 609 (1998)
Stachytarpheta jamaicensis f. atrocoerulea Moldenke in Phytologia 34: 246 (1976)
Stachytarpheta jamaicensis var. longifolia Hiern in Vidensk. Meddel. Naturhist. Foren. Kjøbenhavn 1877: 101 (1877)
Stachytarpheta jamaicensis f. monstrosa Moldenke (1940)
Stachytarpheta jamaicensis f. monstrosa (Moldenke) Moldenke in Phytologia 2: 416 (1948)
Stachytarpheta pilosiuscula Kunth in F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth, Nov. Gen. Sp. 2: 279 (1818)
Valerianoides jamaicensis var. angustifolia Kuntze in Revis. Gen. Pl. 2: 510 (1891)
Valerianoides jamaicensis f. glabra Kuntze (1891)
Valerianoides jamaicensis var. spathulata Kuntze (1891)
Valerianoides jamaicensis f. strigosa Kuntze (1891)
Verbena americana Mill. in Gard. Dict., ed. 8.: n.° 10 (1768)
Verbena pilosiuscula (Kunth) Endl. in Cat. Horti Vindob. 2: 46 (1842)

PUBLICATIONS

Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies. Smithsonian Contributions to Botany 98: 1-1192.

Atkins, S. (2005). The genus Stachytarpheta (Verbenaceae) in Brazil. Kew Bulletin 60: 161-272.

Aung, Y.L., Aung, M.H., Tan, Y. & Jin, X. (2025). An updated checklist of vascular plants of Myanmar. PhytoKeys 261: 135-364.

Beaman, J.H. & Anderson, C. (2004). The Plants of Mount Kinabalu 5: 1-609. Natural history publications (Borneo), Kota Kinabalu, Malaysia.

Berry, P.E., Yatskievych, K. & Holst, B.K. (eds.) in Steyermark, J., Berry, P.E., Holts, B.K. (eds). (2005). Rutaceae-Zygophyllaceae. Flora of the Venezuelan Guayana 9: 1-608. Missouri Botanical Garden, St. Louis.

Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTOM, Bangui.

Bramley, G.L.C. & al. (eds.) in Ridley, H.N. (2022). Flora of the Malay Peninsula, ser. II, 9: 1-301. Authority of teh Government of the Straits Settlements.

Choudhary, R.K., Srivastava, R.C., Das, A.K. & Lee, J. (2012). Floristic diversity assessment and vegetation analysis of Upper Siang district of eastern Himalaya in North East India. Korean Journal of Plant Taxonomy 42: 222-246.

Davidse, G. & al. (eds.) (2012). Flora Mesoamericana 4(2): 1-533. Universidad Nacional Autónoma de México, México, D.F.

Deng, Y.F., Li, Z.Y., Wang, Q. & Peng, H. (2020). Flora of Pan-Himalaya 46: 1-570. Science Press, Beijing. Cambridge University Press.

Fernandes, R. & Diniz, M.A. (2005). Avicenniaceae, Nesogenaceae, Verbenaceae and Lamiaceae (subfams, Viticoideae and Ajugoideae). Flora Zambesiaca 8(7): 1-161. Royal Botanic Gardens, Kew.

Fosberg, F.R. & Sachet, M.-H. (1987). Flora of the Gilbert Island, Kiribati, Checklist. Atoll Research Bulletin 295: 1-33.

Fosberg, F.R. & Stoddard, D.R. (1994). Flora of the Phoenix Islands, Central Pacific. Atoll Research Bulletin 393: 1-60.

Friedmann, F. (1994). Flore des Seychelles Dicotylédones: 1-663. ORSTOM éditions.

Garcia-Mendoza, A.J. & Meave, J.A. (eds.) (2012). Diversidad florística de Oaxaca: de musgos a angiospermas (colecciones y listas de especies), ed. 2: 1-351. Instituto de Biología, Universidad Nacional Autónoma de México.

George, A.S., Orchard, A.E. & Hewson, H.J. (eds.) (1993). Oceanic islands 2. Flora of Australia 50: 1-606. Australian Government Publishing Service, Canberra.

Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

Hammel, B.E. & Grayum, M.H. (2011). Lectotypification and reinstatement of Stachytarpheta friedrichsthalii (Verbenaceae), with notes on the Lectotypification of S. indica. Novon 21: 437-439.

Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.

Ilunga wa Ilunga, E. & Meerts, P. (2024). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi), n.s., Verbenaceae: 1-57. Jardin Botanique National de Belgique, Meise.

Karthigeyan, K., Pandey, R.P. & Mao, A.A. (eds.) (2023). Flora of Andaman and Nicobar Islands 2: 1-689. Botanical Survey of India. Ministry of environment, forest and climate change.

Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.

Kuo, M.L. (ed.) (2012). Flora of Taiwan, ed. 2, Suppl.: 1-414. Editorial Committee of the Flora of Taiwan, Second Edition, National Taiwan University.

Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.

Pandey, R.P. (2009). Floristic diversity of Ferrargunj forest area in South Andaman. Journal of Economic and Taxonomic Botany 33: 747-768.

Reddy, G.V.P. (2011). Survey of invasive plants on Guam and identification of the 20 most widespread. Micronesica; Journal of the College of Guam 41: 263-274.

Sosef, M.S.M. & al. (eds.) (2022). Flore du Gabon 58: 1-150. Muséum National D'Histoire Naturelle, Paris; Margraf Publishers, Weikersheim; Meise Botanic Garden.

Sykes, W.R. (2016). Flora of the Cook Islands: 1-973. National Tropical Botanical Garden, Hawaii.

Thaman, R.R., Fosberg, F.R., Manner, H.I. & Hassall, D.C. (1994). The Flora of Nauru. Atoll Research Bulletin 392: 1-223.

Turner, I.M. (1995 publ. 1997). A catalogue of the Vascular Plants of Malaya. Gardens' Bulletin Singapore 47(2): 347-655.

Vikraman, R.R., Pandurangan, A.G. & Thulasidas, G. (2008). A study on the garden escaped exotics of Thiruvananthapuram district, Kerala. Journal of Economic and Taxonomic Botany 32: 765-781.

Villaseñor, J.L. (2016). Checklist of the native vascular plants of Mexico. Revista Mexicana de Biodiversidad 87: 559-902.

Whistler, W.A. (2022). Flora of Samoa Flowering Plants: 1-930. National Tropical Botanicl Garden. Smithsonian National Museum of Natural History.

VERNACULAR NAME

Arabic: بورترويد الأزرق
Australia: Snakeweed
Bengali: ঘোড়ার চাবুক - কুকরিজাদ - কারিয়ার তারানি Ghōṛāra cābuka, Kukarijāda, Kāriẏāra tārāni
Burmese: မြင်းကြာပွတ်
Chinese (Simplified): 假马鞭
Chinese (Traditional): 假馬鞭 - 假敗醬 - 長穗木 - 牙買加長穗木
East Java: Gajihan
English: Blue Porterweed, Jamaica Snakeweed, joee, Snakeweed
Filipino: Latigo ng kabayo
French: Verveine bleue, Épi bleu, Queue-de-rat
Hawaiian: oi
Hebrew: פורטרוויד כחול
Hindi: घोड़े का चाबुक - कुकरीजाद - करियार तरणी Ghode ka chaabuk, Kukrijad, Kariyar tarani
Indonesian: Jarong, Pecut Kuda
Japanese: フトボナガボソウ - インドナガボソウ
Java: Pecut jaran, Ngadi rengga
Kannada: Kari uttaraani, Kaadu uttaraani
Khmer: រំពាត់សេះ
Korean: 블루 포터위드
Lao: ແສ້ມ້າ
Madura: Jarong
Malayalam: Kattupunnuthu, Narivalan, Seemakongini
Malaysia: Cemeti kuda
Maya: talché
Nepali: घोडाको कोर्रा - कुक्रिजाद - करियार तरानी Ghōḍākō kōrrā, Kukrijāda,
Kariyara tarānī
Oria: Jalajali, Jatiya, Koraputia
Palauan: louchelbeluu
Russian: Стахитарфета ямайская
Sinhala: අශ්ව කසය - සීමායි නයුරුවි Aśva kasaya, Sīmāyi nayuruvi
Spanish: Hoja de corrimiento, Gavilancillo, Rabo de gato
Tamil: குதிரைச் சாட்டை - சீமை நயுருவி Kutiraic cāṭṭai, Seemai nayuruvi
Telugu: Nalladutcheri chettu, Medabalaku, Ceema nayurur
Thai: พันงูเขียว
Vietnam: Roi ngựa

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