Orobanche ramosaL.

Broomrapebranched broomrapehemp broomrape

WFO wfo-0000387703 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Orobanche ramosa, photographed by xulescu_g
fig. a xulescu_g, CC BY-SA 4.0 / 2021-09-15 / obs. 157575073

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

The specimen a real sheet, in a real collection

Herbarium
Smithsonian, US National Herbarium
Accession
US 235409
Filed as
Orobanche ramosa L.
Det. by
Yatskievych, G.
Collected
J. N. Rose 1895-08-15
Origin
US
The sheet
View the digitised specimen (CC0 1.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 42 botanical countries

Regions where Orobanche ramosa is native: Algeria, Canary Is., Djibouti, Egypt, Eritrea, Ethiopia, Libya, Madeira, Mauritania, Morocco, Socotra, Somalia, Sudan-South Sudan, Tunisia, East Aegean Is., Kazakhstan, Lebanon-Syria, Oman, Saudi Arabia, Sinai, Transcaucasus, Türkiye, Yemen, Albania, Austria, Baleares, Bulgaria, Corse, France, Hungary, Italy, Krym, NW. Balkan Pen., Portugal, Romania, Sardegna, Sicilia, South European Russia, Spain, Switzerland, Türkiye-in-Europe, Ukraine AlgeriaDjiboutiEgyptEritreaEthiopiaLibyaMauritaniaMoroccoSomaliaSudan-South SudanTunisiaEast Aegean Is.KazakhstanLebanon-SyriaOmanSaudi ArabiaSinaiTranscaucasusTürkiyeYemenAlbaniaAustriaBulgariaCorseFranceHungaryItalyKrymNW. Balkan Pen.PortugalRomaniaSiciliaSouth European RussiaSpainSwitzerlandTürkiye-in-EuropeUkraine Canary Is.MadeiraBalearesSardegna
Native distribution of Orobanche ramosa, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Albania ALB EUROPE
Austria AUT
Baleares BAL
Bulgaria BUL
Corse COR
France FRA
Hungary HUN
Italy ITA
Krym KRY
NW. Balkan Pen. YUG
Portugal POR
Romania ROM
Sardegna SAR
Sicilia SIC
South European Russia RUS
Spain SPA
Switzerland SWI
Türkiye-in-Europe TUE
Ukraine UKR
Algeria ALG AFRICA
Canary Is. CNY
Djibouti DJI
Egypt EGY
Eritrea ERI
Ethiopia ETH
Libya LBY
Madeira MDR
Mauritania MTN
Morocco MOR
Socotra SOC
Somalia SOM
Sudan-South Sudan SUD
Tunisia TUN
East Aegean Is. EAI ASIA-TEMPERATE
Kazakhstan KAZ
Lebanon-Syria LBS
Oman OMA
Saudi Arabia SAU
Sinai SIN
Transcaucasus TCS
Türkiye TUR
Yemen YEM

Not drawn on the map: Socotra. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 206 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -3.4 °C 3.9 °C 6.7 °C
Warmest month, mean daily high 24.8 °C 34.6 °C 35.0 °C
Annual rainfall 529 mm 978 mm 1,094 mm
Rainfall in the driest quarter 40 mm 184 mm 214 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 206 research-grade observations of Orobanche ramosa that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 20 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Kopsia ramosa (L.) Dumort.
  • Kopsia ramosa f. polyclonos (Wallr.) Bég.
  • Lathraea phelypea Forssk.
  • Orobanche albiflora Gren. & Godr.
  • Orobanche cannabios F.W.Schultz
  • Orobanche cannabis Vaucher
  • Orobanche commutata Zumagl.
  • Orobanche micrantha Wallr.
  • Orobanche monoclonos Beck
  • Orobanche ramosa f. polyclonos Wallr.
  • Orobanche ramosa var. monoclonos (Wallr.) Delip.
  • Orobanche ramosa var. ramosa
  • Phelipanche ramosa (L.) Pomel
  • Phelypaea aegyptiaca Hook.f. & Thomson
  • Phelypaea albiflora Gren. & Godr.
  • Phelypaea emarginata Reut.
  • Phelypaea ramosa (L.) C.A.Mey.
  • Phelypaea ramosa var. monoclonos Wallr.
  • Phelypaea ramosissima Gennari
  • Phelypaea reuteri Moris

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.