Angkalanthus oligophylla 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Scrophulariales Acanthaceae

Scientific Name: Angkalanthus oligophylla
Species Authority: Balf.f.
Ancalanthus paucifolius Balf.f.
Taxonomic Notes: Synonym = Ancalanthus paucifolius Balf.f.

Assessment Information [top]

Red List Category & Criteria: Endangered D ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Miller, A.
Reviewer(s): Abuzinada, A.H. & AL-Eisawi, D.M.H. (Arabian Plants Red List Authority)
Since the 19th Century this species has only been recorded with certainty from a single locality (on rocky slopes where a large wadi enters the southern plain) where less than ten plants were seen. Local informants say that it is locally common in similar places along the southern escarpments but surveys in the region have failed to reveal more sites. Due to the uncertainty over its range a threatened category has been assigned.
Previously published Red List assessments:
1998 Rare (R)

Geographic Range [top]

Range Description: Endemic to Soqotra. It is reported that A. oligophylla is common in dry ravines and at the mouths of the south draining wadis, which feed into the Noged Plain. However, only two specimens are known – the original specimen collected from the mouth of Wadi Ireh by Balfour in 1880 and a second specimen collected in 1990 at apparently exactly the same spot.
Countries occurrence:
Yemen (Socotra)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Current Population Trend: Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: Succulent and drought-deciduous woodland on rocky slopes along the wadis draining into the southern plains. Altitude of 30 m.

A distinctive many-stemmed shrub with attractive, orange-red flowers which hang in racemes at the ends of pendulous branches. The flowers curve upwards and backwards thus regaining their orginal upright position despite hanging upside down.
Systems: Terrestrial

Citation: Miller, A. 2004. Angkalanthus oligophylla. The IUCN Red List of Threatened Species 2004: e.T44730A10944784. . Downloaded on 29 November 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided