Notes
Three subspecies are listed as direct children: Heliotropium curassavicum var. curassavicum L. (salt heliotrope); Heliotropium curassavicum var. obovatum DC. (seaside heliotrope) and Heliotropium curassavicum var. oculatum (Heller) I.M. Johnston (seaside heliotrope) (ITIS, 2010)
Reproduction
Heliotropium curassavicum occurs in dense monospecific stands. A stand comprises of two levels of populations: one of individuals that have developed from seed and a second one, vegetatively developed from shoots and buds from individuals (Hegazy 1994). Hegazy (1994) reports that once a habitat is colonized seed germination could be inhibited in the closed areas and the stand is sustained by vegetative reproduction. Hegazy (1994) found that reproductive ability of H. curassavicum to shift from vegetative to sexual reproduction and vice versa is correlated to temperature, moisture content of the soil and level of disturbance and openness of the disturbed habitat.
Principal source:
Compiler: IUCN SSC Invasive Species Specialist Group (ISSG) with support from the Overseas Territories Environmental Programme (OTEP) project XOT603, a joint project with the Cayman Islands Government - Department of Environment
Review:
Publication date: 2010-06-08
Recommended citation: Global Invasive Species Database (2024) Species profile: Heliotropium curassavicum. Downloaded from http://iucngisd.org/gisd/species.php?sc=1637 on 23-11-2024.