Seasonal bars

  • Jan1
  • Feb2
  • Mar3
  • Apr4
  • May5
  • Jun6
  • Jul7
  • Aug8
  • Sep9
  • Oct10
  • Nov11
  • Dec12
Flowering


Distribution

עלקת כהן - מפת תפוצה

Geogr. District

Vegetation Units

Description & Remarks

During field investigations in the north of Israel a species, new to Science, of Orobanche sect. Trionychon Wallr. was found. Plant material was examined in the framework of the ongoing revisions of the genus Orobanche in the Mediterranean region. A total of 16 species of Orobanchaceae occur in Israel: 3 of Cistanche and 14 of Orobanche.

Orobanche cohenii, the new species, grows on Mount Hermon on rocky-stony soil, on tragacanth vegetation with Astragalus cruentiflorus (dominant), Anthemis pauciloba, Biebersteinia multifida, Galium incanum, Heracleum humile, Siebera nana, Silene odontopetala at 2,200 m a.s.l. on a west-facing slope. This species belongs to Orobanche sect. Trionychon Wallr. as indicated by the occurrence of two bracteoles on the calyx sides. It has some similarities with O. astragali Mouterde, described from Lebanon in similar habitats, but differs from it mainly by the shorter corolla with the stamens inserted closer to its base. It differs from O. daninii, O. aegyptiaca and O. muteli mainly by shape of the corolla; strictly tubular. The occurrence of 5 teeth in the calyx is also noted as a not too common feature.

This new species, from inland Israel, adds to the uniqueness of the flora of Mt Hermon, which is already notable for its high rate of endemism.

Simon S. Cohen

See more from the Botanic Library

Family

Life form (Raunkiaer):
parasite
Spinescence:
absent
Succulence:
stem succulent
Summer Shedding:
ephemeral
Petal or tepal color:
violet, yellow
Sexuality and Reproductive Morphology:
Flowers hermaphrodite only
Sporangia or Seed Homogeneity:
Homogeneous seeds-fruits
Flowering Time:
July, June
Leaf arrangement:
alternate (one leaf per node)
Leaf Type:
scale
Leaf or leaflet margin:
smooth
Stipule:
absent
Habitat:
Tragacanth shrub vegetation (Oro-Mediterranean)
Chorotype:
Mediterranean
Drought Resistence:
Salt Resistance:
glycophyte
Synanthrop:
obligate natural

Taxonomy

Superdivision:
Spermatophyta
Division:
Angiospermae
Class:
Dicotyledoneae
Family:
Orobanchaceae
Genus:
Orobanche