''Stewartiella'' is a

monotypic genus 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 "unispe ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s belonging to the family

Apiaceae Apiaceae () or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus ''Apium,'' and commonly known as the celery, carrot, or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering p ...

. According to Kew; it only contains one known species, Stewartiella crucifolia (Gilli) Hedge & Lamond It is native to

Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan, is a landlocked country located at the crossroads of Central Asia and South Asia. It is bordered by Pakistan to the Durand Line, east and south, Iran to the Afghanistan–Iran borde ...

and

Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...

. The genus name of ''Stewartiella'' is in honour of Ralph Randles Stewart (1890–1993), an American botanist who spent his career teaching and studying plants in Pakistan. The Latin

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

of ''crucifolia'' is derived from 'cruciform' meaning tortured. It was first described and published in Fl. W. Pakistan Vol.20 on page 152 in 1972. The species was first published in Fl. Iranica Vol.162 on page 213 in 1987. Another species such as ''Stewartiella baluchistanica'' Nasir is deemed to be a synonym by Kew. The genus of ''Stewartiella'' is recognized by the

United States Department of Agriculture The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and producti ...

and the

Agricultural Research Service The Agricultural Research Service (ARS) is the principal in-house research agency of the United States Department of Agriculture (USDA). ARS is one of four agencies in USDA's Research, Education and Economics mission area. ARS is charged with ext ...

, but they do not list any known species.

References

{{Taxonbar, from1=Q10374209, from2=Q17135868 Apiaceae Apiaceae genera Plants described in 1972 Flora of Afghanistan Flora of Pakistan