Acalypha rubrinervis

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String tree

Extinct  (ca. 1860) (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Euphorbiaceae
Subtribe: Acalyphinae
Genus: Acalypha
A. rubrinervis
Binomial name
Acalypha rubrinervis
St Helena-Pos.png
Location of St Helena

Acalypha rubrinervis (string tree or stringwood) is an extinct plant in the spurge family (Euphorbiaceae), from the island of Saint Helena in the South Atlantic Ocean. It was called string tree on account of the thin pendulous inflorescences which resembled red strings. Disturbance following human settlement on the island destroyed its habitat and it was last seen in the 19th century. It is thus one of a number of island plants to have been driven to extinction by human activity (see List of extinct plants).

The genus to which it belongs, Acalypha, is a large one and includes island endemics as well as weeds and ornamentals. A. rubrinervis was a shrub or thicket growing on the central ridge of St Helena above 600 m elevation.

See also[edit]

Flora of St Helena


  1. ^ Lambdon, P.W. & Ellick, S. (2016). "Acalypha rubrinervis". The IUCN Red List of Threatened Species. IUCN. 2016: e.T37854A67371775. doi:10.2305/IUCN.UK.2016-1.RLTS.T37854A67371775.en. Retrieved 10 November 2017.

External links[edit]