by Stephen Mifsud
   28 Jan 2023      ()
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Hypericum triquetrifolium   (Wavy-leaved Saint John's Wort)

Hypericum triquetrifolium  (CLUSIACEAE.) 
Images for this profile are taken from the Maltese Islands after year 2000.

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General Information Species Images
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Detailed species profile
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Profile Date July-2004 (taxon update: July-2004)
Citation for this page Mifsud, S. (2022). Hypericum triquetrifolium - datasheet created on July-2004. Retrieved from on 28-Jan-2023

Nomenclature and Basic Information

Species name :

Hypericum triquetrifoliumTurra
Published in Farset. Nov. Gen. 12 (1765)

Synonyms :
(basionym or principal syn.)

Hypericum crispum L.
Full list of synonyms : [Euro+Med] [PlantList] [IPNI] [POWO] [Catalogue of Life] []

Plant Family :

Clusiaceae Juss. (=Guttiferae) (The Saint John's Wort Family)
4 species from the Clusiaceae family are recorded from the Maltese Islands.

English name(s) :

Wavy-leaved Saint John's Wort, Curled-leaved Saint John's Wort, Tangled Hypericum

Maltese name(s) :

Fexfiex tar-Raba

Status for Malta :

Indigenous. Present on the Maltese islands before man

Frequency :

Very Common     Common    Frequent    Scarce     Rare    Very rare    Extinct

Growth form :

Raunkiaer lifeform [info]: THEROPHYTE ( annual plants, herbaceous )
Germination [info]: Dicotyledon

Legal Protection :

Not legally protected till the last update of this website (2/Mar/2022)

Red List (1989) :

Not listed in the Red Data Book of the Maltese Islands

Flowering Time :

June – September

Colour of Flowers:



Not particularly toxic

Name Derivation :

Hypericum: Derived from hyper- meaning above and eikon meaning an icon or picture alluding to very old practice of placing flowers above an image in the house to ward off evil spirits at the midsummer festival of Walpurgisnacht, which later became the feast of St. John held in late June when flowers are in bloom, and later took the name of St. John`s wort. (Greek origin )
triquetrifolium: a leaf which shape has three angles or corners at the base. (Latin origin )

Planting in rural areas :

Can be planted in rural areas according to ERA Guidelines

Description, Habitat and Distribution
Habitat in Europe: Dry, stony or sandy places
Preferred habitat in Malta: Dry fields, Olive Groves, Vineyards.
Botanical Description: Stems 13-55 cm, erect or decumbent, 2-lined, with divaricate branches. Leaves 3-15(-20) mm, lanceolate-triangular or rarely ovate-triangular to linear-oblong, amplexicaul, usually without reticulate venation, sometimes with medium to small translucent dots; margin undulate. Sepals oblong to ovate-oblong, obtuse or apiculate, entire or denticulate, without black dots. Petals without black dots or rarely with one intramarginal dot. Capsule with longitudinal vittae or vesicles.
Distributional range: E. part of Mediterranean region, extending westwards to Sicilia naturalized further west

Distributional map in Europe
and the Mediterranean region (2018):
Occurrences in Europe.
(from Flora Europaea pre year 1993):
Albania, Crete, Greece, Italy (excl. Sicily and Sardignia), Sicily and/or Malta, Turkey (European part), Introduced in  the Balaeric Islands, Spain (incl. Andorra but excl. the Balaerics)
Occurrences in Europe and the Mediterranean region.
(from Euro+Med Checklist, 2019)
  Country codes  
AE Ag Al Cr Cy Eg Gr IJ It Ju Li LS Si(M S) ?Sn Tn Tu(A E) [Bl(M N) Ga(F) Hs(S)]

Links & Further literature (0 papers)

Google Web

Google Images

Google Scholar

Research Gate




Med Checklist

Cat. of Life



World Flora Online

Plants of the World Online

Vienna Virt. Herb.

RBGE Herbarium

KEW Herbarium




Kindly Email if there are papers and publications about local studies or information about this species to be included in the list above.

Species Images (26 images)
   Hypericum triquetrifolium   -   Image Code: HYPTQ-0.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-1.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-2.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-3.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-4.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-5.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-6.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-7.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-8.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-9.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-10.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-11.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-12.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-13.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-14.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-15.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-16.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-17.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-18.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-19.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-20.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-21.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-22.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-23.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-24.
   Hypericum triquetrifolium   -   Image Code: HYPTQ-25.

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