|Scientific Name:||Heliotropium nigricans|
|Red List Category & Criteria:||Vulnerable D2 ver 3.1|
|Reviewer(s):||Abuzinada, A.H. & AL-Eisawi, D.M.H. (Arabian Plants Red List Authority)|
A rare species, with a very limited area of occupancy.
|Range Description:||Endemic to Soqotra.|
|Range Map:||Click here to open the map viewer and explore range.|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||Locally abundant on the southern limestone plateau in Dracaena woodland (Firmihin) and semi-deciduous woodland (Qatariyah). Altitude of 400–600 m.
A shrub < 1 m, almost prostrate in exposed places, all parts thinly covered with short, appressed, tuberculate-based hairs. Leaves: subopposite, dark green, glossy, broadly elliptic to subcircular, 0.5–1.2 x 0.5–1 cm, rounded, entire. Flowers: solitary or paired at ends of branches. Calyx: narrowly triangular, ca. 1 mm long. Corolla: white, 6–7 mm across; tube very short. Stigmas: triangular. Nutlets: 4.
A very distinctive species distinguished by the subopposite, almost circular glossy leaves. Its affinities within the genus are not at all obvious.
|Citation:||Miller, A. 2004. Heliotropium nigricans. The IUCN Red List of Threatened Species 2004: e.T44806A10949316. . Downloaded on 01 May 2016.|
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