Orobanche ramosa

Orobanche ramosa
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Lamiales
Family:	Orobanchaceae
Genus:	Orobanche
Species:	O. ramosa
Binomial name
Orobanche ramosa L.

Orobanche ramosa is a species of broomrape known by the common names hemp broomrape and branching broomrape. It is native to Eurasia and North Africa, but it is known in many other places as an introduced species and sometimes a noxious weed. It is a pest in agricultural fields, infesting crops including tobacco,^[1] potato,^[2] and tomato.^[3]

The plant produces many slender, erect stems from a thick root. The yellowish stems grow 10 to 60 centimeters tall and are coated in glandular hairs. The broomrape is parasitic on other plants, draining nutrients from their roots, and it lacks leaves and chlorophyll. The inflorescence bears several flowers, each in a yellowish calyx of sepals and with a tubular white and blue to purple corolla.

References

1. ^ Karkanis, A., et al. (2007). Tobacco (Nicotiana tabaccum) infection by branched broomrape (Orobanche ramosa) as influenced by irrigation system and fertilization, under East Mediterranean conditions. Journal of Agronomy 6:3 397-402.
2. ^ Haidar, M. A. et al. (2005). Selective control of Orobanche ramosa in potato with rimsulfuron and sub-lethal doses of glyphosate. Crop Protection 24:8 743-47.
3. ^ Mauromicale, G. et al. (2008). Effect of branched broomrape (Orobanche ramosa) infection on the growth and photosynthesis of tomato. Weed Science 56:4 574-81.

External links

• Jepson Manual Treatment
• USDA Plants Profile
• Photo gallery