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(Last Modified On 8/16/2013)
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(Last Modified On 8/16/2013)
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Species
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Scoparia dulcis L
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PlaceOfPublication
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Sp. PI. 116. 1753.
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Note
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TYPE: Jamaica, Sloane, not seen
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Description
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Perennial herbs or weak shrubs to 1.5 m tall, conspicuously glandular punctate (under a lens), the branches slender, angled by the concaulescent leaf bases, mostly glabrous, sometimes ciliate at the nodes. Leaves opposite, sometimes obovate, saliently dentate and to 4 cm long and 1.8 cm wide, mostly much narrower and smaller, the teeth often inconspicuous, apically obtuse, basally cuneate, sometimes with a distinct petiolar region, the midvein prominent with ca. 3 ascending lateral veins on each side, the venation often obscure above. Inflorescence of 1-several flowers from the leaf axils, often paired; pedicels filiform, mostly ca. 5 mm long. Flowers small, the calyx 4-parted nearly to the base, the lobes oblong, obtuse or rounded apically, mostly glabrous, sometimes ciliate, apically rounded, 3 nerved; corolla white, rotate, 4-lobed nearly to the base, the lobes 21/2 mm long, only slightly exceeding the calyx, ovate, glabrous above but densely bearded with long white hairs in the lower '/8 within; stamens 4, the filaments glabrous, slender, inserted on the corolla tube, 1 mm long; anthers yellow, 1 mm long, ellipsoidal, exserted; ovary ellipsoidal, the style 1.5 mm long, only slightly exceeding the anthers, the stigma punctiform, exserted. Capsule globose, 1.5-2.0 mm across, exceeding the calyx, 4-sulcate, yellowish brown, glabrous, dehiscing apically, sometimes beaked by remnants of the style; seeds numerous, ca. 0.5 mm long, somewhat prismatic, coarsely reticulate.
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Habit
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herbs or weak shrubs
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Distribution
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widespread weed of tropical lowlands.
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Note
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The leaves are used for a tea, used in some countries as a beverage and in others as a medicinal. It is reputed to purify or cool stagnant water.
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Common
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Sweet Broom Escobilla amarga
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Common
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Escoba amarga
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Specimen
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BOCAS DEL TORO: Almirante-Changuinola Canal, Blum 1405 (MO). Without other locality, Carleton 95, 149 (both US). Laguna de Chiriqui, Hart 175 (US). Runway, Bocas del Toro, Lazor et al. 2351 (MO, PMA). Changuinola to 5 mi S at junction of Rio Terebe, 100-200 ft, Lewis et al. 791 (DUKE, MO, PMA, US). Chiriqui Lagoon, Wedel 1243, 1337 (both MO), 2830 (MO, US). CANAL ZONE: Pipeline Road near Gamboa, Clewell & Tyson 3273 (PMA). Boyd-Roosevelt Highway near Babanita, Croat 9274 (MO, SCZ). Lowland side of Ft. Kobbe, Duke & Mussell 6589 (MO). Frijoles, Ebinger 631 (MO). Chagres, Fendler 5 (MO, US). Ancon Hill, Greenman & Greenman 5123 (MO). Between Frijoles and Monte Lirio, 30 m, Killip 12123 (US). Rio Chagres bridge near Gamboa, Lasseigne 4273 (MO). 2 mi N of Gatuin Locks on road to Fort San Lorenzo, Lazor & Blum 5421 (MO). Pipeline Road 16 mi N of Gamboa, Lewis et al. 5444 (MO). Ancon, Macbride & Featherstone 18 (US); Piper 5537 (US). Gatuncillo, Piper 5657 (US). Balboa, Standley 25460 (US). Frijoles, Standley 27637 (US); Rio Pedro Miguel near East Paraiso, Standley 30041 (US). Rio Cocoli, Road K-9, Stearn et al. 336 (MO). Near survival school, Curundu, Tyson 1061 (PMA). Miraflores, White 116 (MO). BARRO COLORADO ISLAND: Croat 4160 (MO); Ebinger 593 (MO); Shattuck 49 (MO). CHIRIQUI: Llanos W of Gualaca, 500 ft, Allen 5046 (MO). Quebrada Guanabanito 1 km W of dam at La Represa, Burica Peninsula, Busey 485 (MO). Pozos de Salud, outskirts of Tole Town, 330 m, Correa 128 (DUKE, SCZ). La Repressa 2 mi SW of Puerto Armuelles, 0-200 m, Croat 22064 (MO). David airport, 25 ft, Lewis et al. 758 (MO). Quebrada Mellize 6 mi S of Puerto Armuelles, 0-150 m, Liesner 420 (MO). Towards El Hato del Volcan ca. 8 km N of La Concepcion, Wilbur & Luteyn 19450 (DUKE). San Bartolome, 0-50i m, Woodson & Schery 926 (MO). COCLE1: Nata, 50 m, Allen 841 (MO, US). 12 mi NE of Penonome, 1200 ft, Lewis et al. 1526 (MO, US). Boca del Toabre at confluence of Rio Cocle del Norte, Lewis et al. 5492 (DS). 2 mi N of El Valle, 620-660 m, McDaniel 8290 (DUKE). Mountains above El Valle, Stimson 5021 (SCZ). 10 mi E of Nata at Rio Grande, Tyson 5302 (MO). El Valle on road to La Mesa, Tyson 6920 (PMA). El Valle de Anton, Wilbur et al. 11709 (DS, DUKE, MO). COLON: Road to Portobelo /4 mi N of Maria Chiquita, Croat 11358 (MO). Santa Rita Ridge, Dwyer & Gentry 9356 (MO, PMA). Maria Chiquita E of Rio Piedras toward Portobelo, Dwyer & Kirkbride 7790 (MO). Under bridge crossing Chagres River 1 mi N of Colon-Panama line, Lazor & Tyson 2960 (MO). Santa Rita Ridge 5.5-6 mi E of Transisthmian Highway, Lewis et al. 5388 (DS, MO). Santa Rita Ridge road, Mori & Kallunki 1822 (MO). 5-7 mi SW of Portobelo towards Maria Chiquita, Wilbur & Weaver 11173 (DUKE). DARIEN: Boca Quebrada Venado, Rio Tuqueza, Bristan 1100 (MO). Mannene, Kirkbride & Bristan 1611 (MO). Town weed, Yaviza, Lazor & Correa 3385 (PMA). Rio Tuquesa at lower mining camp Charco Chiva, Mori 6964 (MO). HERRERA: Roadside between El Potrero and Las Minas, Croat 9656 (MO). Ocui, Diaz 6A (DUKE, MO, PMA). 1 mi N of Las Minas, Wilbur et al. 12113 (DUKE). LOS SANTOS: Santa Ana, Duke 12475 (MO). Rio Tonosi, near Tonosi, Lewis et al. 1572 (MO), Loma Prieta, Cerro Grande, 2400-2800 ft, Lewis et al. 2239 (MO). Head- waters of Rio Pedregal 25 mi SW of Tonosi, 2500-3000 ft, Lewis et al. 2923 (DUKE, MO). Between Tonosi and Macaracas, Oliver et al. 3563 (DUKE, MO). Monagre Beach 5 mi SE of Chitre, Tyson et al. 3043, 3049 (both MO). Pedasi, Wilbur et al. 12035 (DUKE). PANAMA: Pedro Gonzales, Pearl Islands, Allen 2592 (MO). 7 mi N of Cerro Azul on road to Cerro Jefe, 2600 ft, Blum 1804 (SCZ). Rio Maje 4-5 mi above waterfall near Bayano Lake, Croat 34686 (MO). 5-6 mi E of Chepo on Panamerican Highway, Duke 4015 (MO). Savannas near Chepo, Duke 6050 (DS, MO). Rio Pacora just below Rio Corso, Duke 12017 (MO). Rio Mar, Dwyer 1802 (MO). Without other locality, Grisebach 1857 (MO). Road to Cerro Azul, Lazor 5545 (SCZ). SW slope of Cerro Campana, Lewis et al. 3135 (DUKE, MO). Chimain, Lewis et al. 3305 (MO). Tributary of Rio Chagres 5 mi SW of Cerro Brewster, 1000 ft, Lewis et al. 3404 (DUKE, MO). Road to Cerro Campana 2-4 mi above Panamerican Highway, 800 m, Luteyn 3999 (DUKE). Near Tapia River, Juan Diaz region, Maxon & Harvey 6672, 6755 (both US) . E of Bella Vista, Maxon & Valentine 6952 (US). Saboga Island, Miller 1974 (MO, US). El Llano-Carti Road, 916 km from Panamerican Highway, Mori & Kallunki 1865 (MO). Sabanas, Paul 43 (US). Chepo, Pittier 4455 (US). Taboga Island, Standley 27109 (US). Rio Tapia, Standley 28076 (US). Cerro Azul, 2000 ft, Tyson 2100, 2126 (both MO). W slope of Cerro Campana, 2300 ft, Tyson 4026 (MO). Chepo, Tyson 6785 (MO, PMA). Carretera Cermeno a Monte Oscuro, Varela 5 (MO). Veracruz, Wendehake 12 (MO). Near Chepo, Wilbur & Luteyn 11798 (DUKE). Carti road ca. 5 km from Panamerican Highway, Wilbur & Luteyn 19484 (DUKE); Witherspoon & Witherspoon 8722 (MO). Isla Taboga, 0-186 m, Woodson et al. 1431 (MO). SAN BLAS: E of Puerto Obaldia, Croat 16937 (MO). Mulatuppa, Rio Ibedi, Duke 8506 (MO). Soskatupu, Elias 1695 (MO). Caladonia Harbor, Mt. Vernon, Elmore L14 (DS, US). Mainland opposite Achituppu, Lewis et al. 107 (MO, US). Forests around Puerto Obaldia, 0-50 m, Pittier 4365 (US). VERAGUAS: Stream feeding Laguna La Yeguada, 15 mi N of Calobre, 644 m, Luteyn 1442 (DUKE, MO). Panamerican Highway 1/2 km W of turnoff to Ocui, Nee 7999 (MO). 5 mi SE of Calobre, Wilbur et al. 12126 (DUKE). Outskirts of Santiago, Wilbur & Teeri 13009 (DUKE).
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