Species

Echium plantagineum

Etymology

Echium: Possibly named the Greek echis 'viper', named for the seeds' resemblance to a vipers' head. The plant was believed by the 1st century physician Dioscoridesbe to be a remedy for a viper's bite.

Common Name(s)

Paterson's curse

Family

Boraginaceae

Flora Category

Vascular - Exotic

Structural Class

Dicotyledonous Herbs other than Composites

Habitat

Terrestrial.

Features

Hispid annual or biennial herb to c. 90 cm high. Basal leaves to c. 15 x 3.5 cm, linear-lanceolate to ovate-lanceolate; base attenuate and petiolate; apex obtuse; upper cauline leaves smaller, sessile, lanceolate to oblong, more or less cordate at base. Inflorescence with 1-several branches; branches becoming spike-like or panniculate. Calyx 9-12 mm long; lobes linear-lanceolate, much < corolla tube. Carolla 20-30 mm long, funnelform, reddish in bud, becoming purplish blue or blue; upper lobes > lower; 2 stamens long-exserted, others included; filiaments deep pink; anthers blue. Nutlets 2-3 mm long, angular. (Webb et al 1988).

Similar Taxa

Can be distinguished from E. vulgare by 2 stamens long-exserted, and the upper cauline leaves are more or less cordate at the base. E. Vulgare has 4 stamens long-exserted, and the upper cauline leaves are rounded at the base.

Flowering

(September) December, January, February (May)

Flower Colours

Blue,Violet / Purple

Year Naturalised

1880

Origin

Northern Mediterranean to South England

Reason For Introduction
Ornamental

Life Cycle Comments
Annual or Biennial.

Tolerances
restricted to warmer areas.

This page last updated on 18 Jan 2010