Electronic Flora of South Australia
Electronic Flora of South Australia
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Electronic Flora of South Australia species Fact Sheet

Family: Boraginaceae
Heliotropium europaeum

Citation: L., Sp. Pl. 187 (1753).

Synonymy: Heliotropium glandulosum

Common name: Potato weed, heliotrope, common heliotrope.

Erect annual; stems, leaves and calyx with simple unicellular hairs: leaves elliptic to ovate, 1.5-9 cm long, 0.8-3 cm wide, long-petiolate, the apex obtuse, the margin not revolute or undulate.

Inflorescence a usually branched cyme, circinnate; calyx not accrescent; corolla white with the throat yellow, outside with simple unicellular hairs, inside glabrous, salverform, the tube c. 2-2.5 mm long, the limb c. 3.5-6 mm diam.; anthers free; style very short, the stigmatic cone papillate and c. 0.75-1 mm long.

Mericarps pubescent or glabrous, 4, falling at maturity.

image of FSA3_Heliotropium_eur.jpg Flowering branch, half flower and fruit.
Image source: fig. 538D in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Cunningham et al. (1982) Plants of western New South Wales, p. 562.

Distribution:  Grows commonly in sandy loams.

S.Aust.: LE, NU, GT, FR, EA, EP, NL, MU, YP, SL, KI, SE.   W.Aust.; N.S.W.; Vic.   Native to Europe.

Conservation status: naturalised

Flowering time: Jan. — Dec., usually Jan. — April.

SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: Poisonous to livestock.

Author: Not yet available

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