Jerusalem Artichoke, Helianthus tuberosus

Overview

Short description of Helianthus tuberosus, Jerusalem Artichoke

A stout, hairy herbaceous perennial which can grow 1-3m high in a single season. Rough, unlobed leaves are opposite on the lower part of the stem, becoming smaller and alternate higher up. Flower heads are sunflower-like, yellow, up to 10cm in diameter and borne late in the season. Seeds are encased in a tough wedge-like shell. Plants have fibrous rhizomes up to 50cm long which bear knobbly tubers resembling ginger at their tips.

Description of Helianthus tuberosus, Jerusalem Artichoke status in GB

Jerusalem artichoke is well established but scattered in southern GB but spreading steadily into lowland areas. Rare in northern England, Wales, Scotland and Ireland but likely to increase.

Habitat summary: Helianthus tuberosus, Jerusalem Artichoke

It is mostly found in man-made habitats including rubbish tips, disturbed ground and cultivated land.

Overview table

Environment: Terrestrial
Species status: Non-Native
Native range: Northern America
Functional type: Land plant
Status in England: Non-Native
Status in Scotland: Non-Native
Status in Wales: Non-Native
Location of first record: v.c.22
Date of first record: 1897

Distribution map

GB Distribution from BSBI

Author's name:

Sharon Pilkington

Last updated:

August 8th, 2011

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Thin strip of image show tree trunk and bark