HYPP-A Unité de Malherbologie & Agronomie
Weed Science & Agronomy
INRA-Dijon

Bayer Code : orara

Scientific name: Orobanche ramosa L.


Synonym(s) of Sc. name: Phelypaea ramosa (L.) C. A. Meyer.

Classification: Orobanchaceae, Dicotyledonous

Common name: hemp broomrape

Synonym(s) of Common name:

Name per country: DE : Ästige Sommerwurz ; ES : jopo ; FR : orobanche rameuse ; IT : succiamele ramoso ; PT : erva-toira-ramosa ; EN : hemp broomrape ;

Biological type: Annual, Perennial


Seed snapshot Seed:

.


Seedling:

- Cotyledons absent, hypogeal germination, root -parasite.


Adult plant snapshot Adult plant:

- Height: 10-30 cm. Parasite plant devoid of chlorophyll, glandular -hairy.

- Stem light-yellow or blueish, mostly branched.

- Leaves scale -like, small, numerous, circa 1 cm long.

- Flowers light-yellow, blue-purple tinged, in loose spike, early lengthened. Calyx campanulate, short, 4-5-toothed, with 2 basal bracteoles. Corolla 10-20 mm long. Filaments joined to the corolla on 3-5 mm long. Stigma blue-lilac. Bracts half as long as the corolla at base, 1-2 mm broad.

- Fruit globose, more or less flattened, glabrous.

- The base of the stems was used in disorders of nerves.

- Rare in crops.

- Biological type: annual or perennial according to the biological type of the host plant.


Ecological profile (click on flags): Spain   Present     France  Rare     Italy  Present     Portugal  Present    

Return INRA  Return INRA-Dijon  Return Weed Science & Agronomy Unit  Return HYPP-A

Copyright © 2000-2001 INRA, all rights reserved ; J.-P. Lonchamp, Nov. 2000
http://www.dijon.inra.fr/bga/hyppa/hyppa-a/orara_ah.htm ,