sábado, 9 de junio de 2012

BIGNONIA NARANJA


Nombre científico o latino: Pyrostegia venusta

- Sinónimo: Pyrostegia ignea


- Nombre común o vulgar: Bignonia de invierno, Liana de llama, Trompetero naranja


- Familia: Bignoniaceae (Bignoniáceas).


- Origen: Brasil, Paraguay, Bolivia y Argentina.


- Enredadera trepadora de tallos leñosos, de 4-6 m, y follaje persistente.


Hojas trifoliadas, con folíolos de ovados a oblongo-lanceolados, de hasta 8-11 x 5-7 cm, con el ápice obtuso y la base redondeada, de textura papirácea. Haz glabro a pubescente y envés glabro a velloso. Cáliz pubescente, denticulado.
 Flores con el tubo de la corola de 4-6 cm de longitud, de color naranja, con lóbulos lineares de 1-1,5 cm de longitud. Cápsula de hasta 25 cm de largo, estrechándose en los extremos.

- Luz: pleno sol o semisombra.
- Temperaturas: es sensible a las heladas.
- Ubicar en jardines protegidos de los vientos muy fríos del sudoeste.
- Suelo suelto, profundo, fértil y algo ácido.
- Suele necesitar un tutor.
- Multiplicación: acodos, esquejes, semillas.

Fruto una cápsula linear de hasta 30 cm de largo, no siempre se observa fructificación.- Florece desde fines del otoño hasta fines del invierno.- Es una trepadora que florece profusamente en pleno invierno, cuando todas las otras ya han declinado.- Apreciado por su floración prolífica, prefiere un suelo ordinario en un lugar caluroso protegido, un acolchado grueso y poco agua una vez establecido.- Usos: excelente planta trepadora de flor, llamativa por su destacada floración.- No es una trepadora muy conocida aún.- Muy adecuada para arcos, pérgolas y verjas.

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