Origin and Habitat: Adenium dhofarenseSN|35392]]SN|35392]] is endemic to the Dhofar coast (Oman) and adjacent mountains of Yemen. (Arabian Peninsula)
Altitude range: Around 960 metres above sea level.
Habitat and ecology: Tropical woodland. Adenium dhofarenseSN|35392]]SN|35392]] is in leaf for about three months in summer, when its habitat is bathed in almost continuous heavy mist from the edge of the Asian monsoon. The rest of the year is hot and dry. The huge leaves appear in mid summer and fall off by late autumn.

• Adenium dhofarense Rzepecky

• Adenium obesum Roem. & Schult.
• Cameraria obesa Spreng.
• Nerium obesum Forssk.
• Pachypodium obesum A.DC.
• Adenium arabicum Balf.f.
• Adenium arboreum Ehrenb.
• Adenium coetaneum Stapf
• Adenium dhofarense Rzepecky
• Adenium honghel A.DC.
• Adenium honghel Lindl.
• Adenium obesum subs. socotranum (Vierh.) Lavranos
• Adenium socotranum Vierh.
• Adenium obesum subs. socotranum f. cristata hort.
• Adenium socotranum f. cristata hort.
• Adenium obesum subs. somalense (Balf.f.) G.D.Rowley
• Adenium somalense Balf.f.
• Adenium somalense var. caudatipetalum Chiov.
• Adenium somalense var. crispum Chiov.
• Adenium tricholepis Chiov.

• Adenium obesum f. albiflorum Lodé
• Adenium speciosum Fenzl

• Adenium obesum subs. boehmianum (Schinz) G.D.Rowley
• Adenium boehmianum Schinz

• Adenium obesum subs. oleifolium (Stapf) G.D.Rowley
• Adenium oleifolium Stapf
• Adenium lugardiae N.E.Br.
• Adenium oleifolium var. angustifolium Phillips
• Adenium somalense var. angustifolium (Phil.) G.D.Rowley

• Adenium obesum subs. swazicum (Stapf) G.D.Rowley
• Adenium boehmianum var. swazicum (Stapf) G.D.Rowley
• Adenium swazicum Stapf

Description: Adenium dhofarenseSN|116]]SN|35392]] is a local or morphological form of Adenium obesumSN|35392]]SN|116]], but commonly used to be know as a separate species. It is a succulent shrub or shrubby tree up to 3 m high, the shape resembling a dwarf baobab. The stems arise from a large thickened rootstock and have peculiar characteristics that reflect the harsh environment in which it lives. A. dhofarense forms one of the nicest caudex of the genus, and each individual plant is unique in it own right. However some common characteristics have been highlighted: some plants are tree-like up to 3 m tall with a densely branched crown; other plants have long branches, even up to 3 meters long, forming a large crown that usually branches from a single robust root. Most of the plants, however, are 1-1,5 m tall and have an irregular globose crown, surmounted by a few often long branches. A characteristic often observed in the species is the ability of some of the longest branches to produce roots at the point where they touch the ground and thus give rise to a new plant. It has extremely large, leathery and glossy leaves with more substance than those of most other adeniums and very small flowers that are usually produced when the plants are leafless. It grows very slowly.
Stems: Branches are often decumbent to trailing and tend to root when they touch the ground.
Flowers: Very small pink, produced in one brief flush in early summer, just before the plants leaf out.

Bibliography: Major references and further lectures
1) Sundaram Adeniums “Speices & Hybrids - Adenium Plants” Web: http://abenaplants.com/ad_species.php
2) Rzepecky, “Adenium dhofarense Rzepecky sp. nov. A Long-Overlooked Species from the Central-Southern Part of the Arabian Peninsula”, Cact. Succ. J. (Los Angeles) 87(3): 131. 2015 [1 Jun 2015]