We have the plant Heliotropium (Heliotropium angiospermum) growing on our hillside; it is also known as Butterfly Heliotrope, and Scorpion tail. It blooms tiny white flowers on a long stem that uncoils as it grows. 
This plant is toxic to animals – dogs and horses.
Interestingly, there is another specie of this plant – the Heliotropium indicum or Indian Heliotrope, that is used as a medicinal herb in Jamaica and other parts of the world. It looks very similar to the Heliotrope growing in our yard.
The Indian Heliotrope is used for treating skin conditions, wounds, eye inflammation, and even gum boils. Warning: The Heliotropium indicum is a dangerous plant and should not be used for extended periods of time as it kills liver cells. It should not be taken internally by children, persons over age 55, and pregnant women.
See more photos of the Heliotropium angiospermum – Scorpion Tail below: 
Suz and Tell 