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 supinum

Citation: L., Sp. Pl. 130 (1753).

Synonymy: Not Applicable

Common name: Prostrate heliotrope, creeping (or spreading) heliotrope, prostrate potato weed.

Semiprostrate annual; stems, leaves and calyx with long and short simple unicellular hairs; leaves ovate, 1.5-3.5 cm long, 0.6-1.8 cm wide, long-petiolate, the apex obtuse, the margin slightly revolute and slightly undulate.

Inflorescence a usually unbranched cyme, circinnate; calyx accrescent; corolla white with the throat yellow, outside with simple unicellular hairs, inside glabrous, salverform, the tube c. 2 mm long, the limb c. 2-2.5 mm diam.; anthers free; style c. 0.5 mm long, the stigma with the stigmatic cone minutely pubescent and c. 0.5 mm long.

mericarps glabrous, 1-4, falling with the calyx at maturity.

image of FSA3_Heliotropium_sup.jpg Flowering branch, half flower and fruit.
Image source: fig. 539B 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. 564.

Distribution:  Grows in heavy clay soils.

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

Conservation status: naturalised

Flowering time: Jan. — April.

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

Biology: No text

Author: Not yet available

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