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Helminthotheca echioides

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Kingdom  Plantae
Tribe  Cichorieae
Scientific name  Picris echioides
Rank  Species
Order  Asterales
Genus  Helminthotheca
Higher classification  Picris
Helminthotheca echioides warehouse1indiciaorgukuploadOxtongue20Brist
Similar  Picris, Helminthotheca, Daisy family, Picris hieracioides, Cat's ear

Helminthotheca echioides, known as bristly oxtongue, is a stiff annual or biennial herb native to Europe and North Africa. It was traditionally used as an antihelminthic treatment.

Contents

Helminthotheca echioides Bristly Oxtongue Helminthotheca echioides NatureSpot

Description

Helminthotheca echioides Bristly Oxtongue Helminthotheca echioides NatureSpot

H. echioides may grow up to 90 cm (35 in) tall, with a thick, furrowed stem and spreading branches. The leaves are 10–20 cm (4–8 in) long, oblanceolate with a short petiole. The leaves, branches and stem are all covered in thick bristles. The inflorescences are 2–3.5 cm (0.8–1.4 in) wide and subtended by between 3 and 5 large ovate-cordate involucral bracts. These large bracts are the defining feature of the genus Helminthotheca.

A number of infraspecific taxa are recognised, varying in their leaf shape.

Distribution

Helminthotheca echioides CalPhotos Helminthotheca echioides Bristly Oxtongue

Helminthotheca echioides is native to the Mediterranean Basin, but has become widely naturalised outside that range. In the British Isles, it is widely distributed in the south and east, but more patchily distributed to the north and west. In Northern Ireland, H. echioides is only found on the north side of Belfast Lough.

Helminthotheca echioides TERRAIN Taranaki Educational Resource Research Analysis

It has been introduced to North America, where it can now be found from Nova Scotia to British Columbia and California.

Etymology

Helminthotheca echioides Helminthotheca echioides Wikipedia

The specific epithet echioides comes from the resemblance of the leaves of this species to those of Echium vulgare.

References

Helminthotheca echioides Wikipedia


Similar Topics
Helminthotheca
Picris
Picris hieracioides
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