Guizotia jacksonii

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Guizotia jacksonii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Guizotia
Species:
G. jacksonii
Binomial name
Guizotia jacksonii
(S.Moore) J.Baagøe[1]
Synonyms
  • Coreopsis jacksonii, Bidens jacksonii
  • Coreopsis jacksonii var. arthrochaeta
  • Guizotia reptans
  • Guizotia reptans var. keniensis
  • Bidens spathulata

Guizotia jacksonii is a low, creeping,

perennial plant with ovate leaves and yellow flowerheads belonging to the family Asteraceae. This species is endemic to Kenya, and grows in along roads and other open treaded places in the forest zones the central highlands of Kenya.[2]

Taxonomy

In 1902, Spencer Le Marchant Moore was the first to describe this species of sunfleck as Coreopsis jacksonii, based on a specimen collected by Frederick John Jackson from the Kiambu County in Kenya in 1899. John Hutchinson assigned a plant collected by Battiscombe from the Aberdare Range in Nyandarua County to the genus Guizotia and called it G. reptans. Earl Edward Sherff described in 1923 a plant from the western slopes of Mount Kenya, found by Mearns, as Bidens spathulata. By 1926 he had realised it was identical to Moore's species, but as he thought it better placed in Bidens, he made the new combination B. jacksonii. Robert Elias Fries collected a slightly different specimen in 1928 that he called Guizotia reptans var. keniensis, while Sherff also had a plant he regarded as sufficiently divergent and called it Coreopsis jacksonii var. arthrochaeta in 1929. It wasn't until 1974 that J. Baagøe synonymised all of these names, and had to create the new combination Guizotia jacksonii to satisfy the International Code of Nomenclature for algae, fungi, and plants.[3]

Description

Guizotia jacksonii is a low (about 1 cm high) perennial, herbaceous, creeping plant, which branches sparingly, each hairless stem 3–30 cm long, that makes roots at the

pappus present.[3] The species has thirty chromosomes (2n=30).[4]

Distribution

Guizotia jacksonii is an endemic of Mount Elgon, Cherangani Hills Forest,[5] the Aberdare Range, Mau Forest and Mount Kenya, where it occurs between 2350–3900 m altitude.[3]

References

  1. ^ "Guizotia jacksonii (S.Moore) Baagøe". The Plantlist. Retrieved 2017-03-08.
  2. ^ Getinet, A.; Sharma, S.M. (1996), Niger. Guizotia abyssinica (L. f.) Cass. (PDF), Promoting the conservation and use of underutilized and neglected crops, vol. 5, Gatersleben/Rome: Institute of Plant Genetics and Crop Plant Research/International Plant Genetic Resources Institute
  3. ^ a b c Beentje, H.; Jeffrey, C.; Hind, D.J.N. (2005). Flora of Tropical East Africa. Vol. Part 3. p. 547. cited on "Compilation Guizotia reptans". GSTORE Global Plants. Retrieved 2017-03-08.
  4. doi:10.1080/00087114.1992.10797212
    .
  5. ^ Mbuni, Yuvenalis Morara; Zhou, Yadong; Wang, Shengwei; Ngumbau, Veronicah Mutele; Musili, Paul Mutuku; Mutie, Fredrick Munyao; Njoroge, Brian; Kirika, Paul Muigai; Mwachala, Geoffrey; Vivian, Kathambi; Rono, Peninah Cheptoo; Hu, Guangwan; Wang, Qingfeng (18 April 2019). "An annotated checklist of vascular plants of Cherangani hills, Western Kenya". PhytoKeys. 120: 1–90.

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