Biology:Hedbergia

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Short description: Genus of flowering plants in the broomrape family

Hedbergia
Hedbergia abyssinica-MNHN-P-P032763.jpg
Holotype of Hedbergia abyssinica
(herbarium specimen).
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Orobanchaceae
Tribe: Rhinantheae
Genus: Hedbergia
L.
Species:
H. abyssinica
Binomial name
Hedbergia abyssinica
(Benth.) Molau
Synonyms[1]
  • Alectra abyssinica A.Rich.
  • Alectra petitiana A.Rich.
  • Bartsia abyssinica Benth.
  • Bartsia abyssinica Hochst. ex A.Rich.
  • Bartsia abyssinica var. nyikensis (R.E.Fr.) Hedberg & al.
  • Bartsia abyssinica var. petitiana (A.Rich.) Hedberg & al.
  • Bartsia elgonensis R.E.Fr.
  • Bartsia mannii Hemsl.
  • Bartsia nyikensis R.E.Fr.
  • Bartsia petitiana (A.Rich.) Hemsl.

Hedbergia is a monotypic genus of flowering plants, initially classified in Scrophulariaceae, and now within the broomrape family Orobanchaceae.[2] It contains a unique species, Hedbergia abyssinica.[1] It is an afromontane genus, widespread in grasslands and scrubs of the mountains of tropical Africa, and known from Ethiopia, Zaire, Uganda, Kenya, Tanzania, Malawi, Nigeria, and Cameroons.[2]

The genus name is a taxonomic patronym honoring the Swedish botanist Karl Olov Hedberg.

Description

Hedbergia abyssinica is a 1–2.5 feet (30–76 cm) high, very hispid perennial plant, with subsessile thick leaves, and densely crowded, white to pink or magenta flowers.[3][2]

Phylogeny

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

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

References

  1. 1.0 1.1 "Hedbergia abyssinica (Benth.) Molau – The Plant List". http://www.theplantlist.org/tpl1.1/record/kew-2840776. 
  2. 2.0 2.1 2.2 Molau, Ulf (1988). "Hedbergia, a new genus of Scrophulariaceae from Africa" (in en). Nordic Journal of Botany 8 (2): 193–195. doi:10.1111/j.1756-1051.1988.tb00500.x. ISSN 1756-1051. 
  3. "BARTSIA abyssinica Hochst. ex Benth. [family SCROPHULARIACEAE"]. Global Plants. JSTOR. https://plants.jstor.org/stable/10.5555/al.ap.flora.flota007436. 
  4. 4.0 4.1 Těšitel, Jakub; Říha, Pavel; Svobodová, Šárka; Malinová, Tamara; Štech, Milan (2010-10-28). "Phylogeny, Life History Evolution and Biogeography of the Rhinanthoid Orobanchaceae" (in en). Folia Geobotanica 45 (4): 347–367. doi:10.1007/s12224-010-9089-y. ISSN 1211-9520. 
  5. 5.0 5.1 Scheunert, Agnes; Fleischmann, Andreas; Olano-Marín, Catalina; Bräuchler, Christian; Heubl, Günther (2012-12-14). "Phylogeny of tribe Rhinantheae (Orobanchaceae) with a focus on biogeography, cytology and re-examination of generic concepts". Taxon 61 (6): 1269–1285. doi:10.1002/tax.616008. 

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