Monographs Details: Tecoma stans (L.) Juss. ex Kunth var. stans
Authority: Gentry, Alwyn H. 1992. Bignoniaceae--part II (Tribe Tecomeae). Fl. Neotrop. Monogr. 25: 1-370. (Published by NYBG Press)
Family:Bignoniaceae
Synonyms:Bignonia stans L., Tecoma incisa (Rose & Standl.) I.M.Johnst., Bignonia frutescens Mill., Bignonia incisa DC., Tecoma stans var. apiifolia DC., Stenolobium stans (L.) Seem., Stenolobium stans var. pinnatum Bureau, Stenolobium stans var. apiifolium (DC.) Seem., Gelseminum stans (L.) Kuntze, Stenolobium stans var. multijugum Fr., Stenolobium quinquejugum Loes.
Description:Species Description - Shrub or small tree to 10 m tall and 25 cm dbh., the bark dark, ridged, the branchlets lepidote, somewhat subpuberulous, more or less terete, drying dark brown when young, light brown when mature. Leaves 3-9-foliolate, the first pair of leaves on a branch often simple or 1-foliolate, the leaflets opposite, serrate, lanceolate, apically acute to acuminate, basally cuneate, the terminal leaflet frequently attenuate, 2.4-15 cm long, 0.86 cm wide, progressively larger distally, the terminal leaflet 4-20 mm long, membranaceous, somewhat lepidote above and below, simple-puberulous at least along the midvein, frequently puberulous below at the base of the secondary veins and sometimes very slightly over the leaflet surface, especially in the nerve axils; petiole 1-9 cm long, slightly lepidote, puberulous at the leaflet bases. Inflorescence a terminal or subterminal raceme of up to 20 flowers, only a few flowers opening at a time, pedicels and rachis lepidote. Flowers with the calyx elongate-cupular, evenly 5-dentate, the teeth ca. 1 mm long, apiculate, 3-7 mm long, 3-4 mm wide, somewhat lepidote throughout, the margin ciliate, with conspicuous sunken submarginal glands; corolla yellow (occasionally slightly orangish yellow) with reddish lines in throat, tubular-campanulate above a narrowed 0.9-1 cm long base, 3.5-5.8 cm long, 1.2-2.4 cm wide at mouth of tube, the tube 3-4.3 cm long, the lobes 1-1.5 cm long, glabrous outside, inside glabrous except for gland-tipped trichomes at level of stamen insertion and twisted trichomes in sinuses and on throat ridges; stamens included, didynamous, the anther thecae divaricate, 3-4 mm long, sparsely pilose; pistil 3-3.5 cm long, the ovary narrowly cylindric, 3 mm long, 1 mm wide, somewhat glandular-lepidote, the ovules 2-seriate in each locule; disk cupular-pulvinate, 1 mm long, 1 mm wide. Fruit a linear capsule, tapering at the ends, subterete when fresh, the calyx caducous, 7-21 cm long, 5-8 mm wide, the surface lenticellate, more or less glabrous, sometimes slightly and inconspicuously lepidote; seeds 3-5 mm long, 2.4-2.7 cm wide, the wings hyaline-membranaceous, sharply demarcated from seed body.

Discussion:This species is widely cultivated as an ornamental and is the national flower of the Bahamas. The wood was formerly used for making bows in Mexico (Standley, 1926). The roots have been used as a diuretic and also to make beer in Mexico; a decoction of flowers and bark is used for stomach pains; also used as an antisyphilitic and vermifuge and to cure diabetes (Standley, 1926). A form from Jujuy, Argentina (e.g., Eyerdam & Beetle 22342, Schreiter 5117) is reported to have the corolla reddish orange; this form also has a more narrowly campanulate corolla than typical T. stans, has the anthers held fairly near the tube mouth, and has a preponderance of simple and 3-foliolate leaves. It might represent hybridization with T. garrocha.
Distribution:Catamarca Argentina South America| Jujuy Argentina South America| Salta Argentina South America| Santiago del Estero Argentina South America| Tucuman Argentina South America| Harbour Island Bahamas South America| Inagua Bahamas South America| Chuquisaca Bolivia South America| Cochabamba Bolivia South America| Tarija Bolivia South America| Grand Cayman Cayman Islands South America| Antioquia Colombia South America| Atlántico Colombia South America| Bolívar Colombia South America| Boyacá Colombia South America| Cundinamarca Colombia South America| Huila Colombia South America| Magdalena Colombia South America| Santander Colombia South America| Tolima Colombia South America| Valle Colombia South America| Alajuela Costa Rica Central America| Cartago Costa Rica Central America| Guanacaste Costa Rica Central America| Heredia Costa Rica Central America| Puntarenas Costa Rica Central America| San José Costa Rica Central America| Cienfuegos Cuba South America| La Habana Cuba South America| Matanzas Cuba South America| Santiago de Cuba Cuba South America| Barahona Dominican Republic South America| Pedernales Dominican Republic South America| Santiago Dominican Republic South America| Ahuachapán El Salvador Central America| San Salvador El Salvador Central America| Sonsonate El Salvador Central America| Baja Verapaz Guatemala Central America| El Progreso Guatemala Central America| Guatemala Guatemala Central America| Huehuetenango Guatemala Central America| Petén Guatemala Central America| Sacatepéquez Guatemala Central America| Zacapa Guatemala Central America| Haiti South America| Choluteca Honduras Central America| Comayagua Honduras Central America| El Paraíso Honduras Central America| Francisco Morazán Honduras Central America| Islas de la Bahía Honduras Central America| La Paz Honduras Central America| Yoro Honduras Central America| Manchester Jamaica South America| Saint Andrew Jamaica South America| Saint Elizabeth Jamaica South America| Saint James Jamaica South America| Saint Thomas Jamaica South America| Antigua and Barbuda South America| Guadeloupe South America| Saba South America| Baja California Mexico North America| Campeche Mexico North America| Chiapas Mexico North America| Colima Mexico North America| Distrito Federal Mexico North America| Durango Mexico North America| Guerrero Mexico North America| Hidalgo Mexico North America| Jalisco Mexico North America| México Mexico North America| Michoacán Mexico North America| Morelos Mexico North America| Nuevo León Mexico North America| Oaxaca Mexico North America| Puebla Mexico North America| Querétaro Mexico North America| Quintana Roo Mexico North America| San Luis Potosí Mexico North America| Sinaloa Mexico North America| Sonora Mexico North America| Tabasco Mexico North America| Tamaulipas Mexico North America| Veracruz Mexico North America| Yucatán Mexico North America| Zacatecas Mexico North America| Chinandega Nicaragua Central America| Estelí Nicaragua Central America| Granada Nicaragua Central America| León Nicaragua Central America| Madriz Nicaragua Central America| Managua Nicaragua Central America| Masaya Nicaragua Central America| Matagalpa Nicaragua Central America| Nueva Segovia Nicaragua Central America| Rivas Nicaragua Central America| Zelaya Nicaragua Central America| Canal Zone Panamá Central America| Chiriquí Panamá Central America| Coclé Panamá Central America| Colón Panamá Central America| Darién Panamá Central America| Los Santos Panama Central America| Panamá Panama Central America| Amazonas Peru South America| Apurímac Peru South America| Lambayeque Peru South America| Puerto Rico South America| Curaçao South America| Trinidad and Tobago South America| Aragua Venezuela South America| Carabobo Venezuela South America| Distrito Federal Venezuela South America| Falcón Venezuela South America| Guárico Venezuela South America| Lara Venezuela South America| Mérida Venezuela South America| Miranda Venezuela South America| Monagas Venezuela South America| Nueva Esparta Venezuela South America| Sucre Venezuela South America| Zulia Venezuela South America| Saint Croix Virgin Islands of the United States South America| Saint Thomas Virgin Islands of the United States South America| Tortola Virgin Islands South America| Dominica South America| Grenada South America| Martinique South America| Saint Lucia South America| Santa Cruz Bolivia South America|

Common Names:Tronadora, trompeta, gloria, trompetilla, cometa amarilla, retamo, retama, estamasuchil, palo de arco, tulasuchil, san pedro, flor de san pedro, angel, borla de san pedro, saúco amarillo, flor amarillo, canlol, canlol-che, kanlo, kanlol, nixtamalazo, nixtamaxochitl, nextamalxochitl, timboco, timboquc, San Andres, barreto, chacte , tache, tasto, San Andres, marchucha, tagualaishte, flor amarilla, sardinillo, vainilla, candelillo, copete, trumpet-flower, yellow elder, ginger Thomas, roble amarillo, saúco amarillo, fresnillo, chirlobirlos, palo hueso, fresnillo, flor amarillo, Maria Luisa, huaranhuai