Parentucellia

Parentucellia is a small genus of flowering plants in the family Orobanchaceae containing about four species. They are known generally as glandweeds. The genus was named for Pope Nicholas V, whose surname was Parentucelli.^[3]

Parentucellia
Parentucellia viscosa
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Orobanchaceae
Tribe:	Rhinantheae
Genus:	Parentucellia Viv.[1]
Type species
Parentucellia floribunda Viv.[2]
Species
About 4, see text

Phylogeny

The phylogeny of the genera of Rhinantheae has been explored using molecular characters.^[4][5] Parentucellia belongs to the core Rhinantheae. It is closely related to the genus Bellardia, and then to Odontites, Tozzia and Hedbergia. In turn, these genera share phylogenetic affinities with Euphrasia and Bartsia.

Genus-level cladogram of the Rhinantheae.

Rhinantheae               Melampyrum               Rhynchocorys               Lathraea   Rhinanthus   Core Rhinantheae               Bartsia sensu stricto (Bartsia alpina)             Euphrasia             Hedbergia   (including Bartsia decurva + B. longiflora)   Tozzia   Odontites sensu lato   (including Bartsiella   and Bornmuellerantha)             Bellardia             Neobartsia (New World Bartsia)   Parentucellia

The cladogram has been reconstructed from nuclear and plastid DNA molecular characters (ITS, rps16 intron and trnK region).[4][5]

Systematics

Species include:

• Parentucellia floribunda
• Parentucellia latifolia
• Parentucellia viscosa