Disk Trefoil

Hymenocarpos circinnatus, Hymenocarpus circinnatus, Disk Trefoil,
Hebrew: כליינית מצויה, Arabic: قرنة

Scientific name:   Hymenocarpos circinnatus (L.) Savi,
Hymenocarpus circinnatus (L.) Savi
Common name:   Disk Trefoil
Hebrew name:   כליינית מצויה
Arabic name:   قرنة
Family:   Fabaceae / Papilionaceae, פרפרניים


Life form:   Therophyte, annual
Stems:   5-30cm; furry, procumbent-uplinks
Leaves:   Alternate, compound, pinnate or bipinnate, pinnate; smooth margin; stipule
Flowers:   Hermaphrodite; crown 5 – 7 mm, yellow orange; flowers grouped (between 2 and 8) in a head spearing appear at length
Fruits / pods:   a clove in flattened disk, diameter of 10 – 15 mm, with thorns on the margin
Flowering Period:   February, March, April, May
Habitat:   Batha, Phrygana
Distribution:   Mediterranean Woodlands and Shrublands, Semi-steppe shrublands, Shrub-steppes, Deserts and extreme deserts, Montane vegetation of Mt. Hermon
Chorotype:   Mediterranean
Summer shedding:   Ephemeral


Derivation of the botanical name:

Hymenocarpus, Hymen, υμην, ενοϛ, skin, membrane; carpus, fruit; with membranous fruits.

circinnatus, circino, to make round; coiled inwards from the tip.

  • The standard author abbreviation L. is used to indicate Carl Linnaeus (1707 – 1778), a Swedish botanist, physician, and zoologist, the father of modern taxonomy.
  • The standard author abbreviation Savi is used to indicate Gaetano Savi (1769 – 1844), an Italian naturalist.