''Mathiasella'' is a

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 "unisp ...

genus of

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 ...

. It is in the Tribe Selineae. The genus only contains one known species, ''Mathiasella bupleuroides'' Constance & C.L.Hitchc. It is native to Mexico. The genus name of ''Mathiasella'' is in honour of Mildred Esther Mathias (1906–1995), an American botanist and college professor and also Director of the UCLA Botanic garden. 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 ''bupleuroides'' means "like Bupleurum" in recognition that it has visual similarities to ''

Bupleurum ''Bupleurum'' is a large genus of annual or perennial herbs or woody shrubs, with about 190 species, belonging to the family Apiaceae. The full size of its species may vary between a few cm to up to 3 m high. Their compound umbels of s ...

'', another genus of plants in the Apiaceae family, that has worldwide distribution. Both the genus and the species were first described and published in Amer. J. Bot. Vol.41 on page 56 in 1954.

Known cultivars

'Green Dream' is a herbaceous perennial that grows up to 1m tall with large, dark green, highly divided leaves. The blooms are made up of jade-green bracts surrounding small, black flowers. They appear in late spring and last to autumn, gradually maturing to pink. It is used in gardens in the UK and USA. It grows in moist but well-drained soil in full sun to partial shade. It may need protection from the harshest winter frosts (in the UK). The cut flowers are used ornamentally, fresh or dried.

References

Apioideae Monotypic Apioideae genera {{Apiaceae-stub