''Dirachma'' is the sole

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Dirachmaceae. The genus had been

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

, its sole species being the

woody plant A woody plant is a plant that produces wood as its structural tissue and thus has a hard stem. In cold climates, woody plants further survive winter or dry season above ground, as opposite to herbaceous plants that die back to the ground until sp ...

''Dirachma socotrana'', until a second,

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of t ...

, species, ''Dirachma somalensis'', was discovered in

Somalia Somalia, , Osmanya script: 𐒈𐒝𐒑𐒛𐒐𐒘𐒕𐒖; ar, الصومال, aṣ-Ṣūmāl officially the Federal Republic of SomaliaThe ''Federal Republic of Somalia'' is the country's name per Article 1 of thProvisional Constituti ...

and described in 1991.Link, D.A. 1991
''Dirachma somalensis'' D.A.Link ''sp. nov.'' A New Species of a Remarkable and Highly Endangered Monogeneric Family.
''Bulletin du Jardin botanique national de Belgique / Bulletin van de National Plantentuin van België'', 61: 3-13.

References

Rosales Rosales genera Taxa named by Isaac Bayley Balfour Taxa named by Georg August Schweinfurth Flora of Somalia Flora of Socotra {{Rosales-stub