Compilation
Guizotia jacksonii

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Name

Identification
Guizotia jacksonii (S.Moore) J.Baagøe [family ASTERACEAE ] Verified by Baagøe,J., Bidens jacksonii S.Moore [family ASTERACEAE ] (stored under name);
Related name
  • Bidens jacksonii
  • Guizotia reptans
  • Guizotia jacksonii

Flora

Entry for Guizotia jacksonii (S.Moore) J.Baagøe [family COMPOSITAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, Part Part 3, page 547, (2005) Author: H. Beentje, C. Jeffrey & D.J.N. Hind
Names
Guizotia jacksonii (S.Moore) J.Baagøe [family COMPOSITAE], in Bot. Tidsskr., 69 (1): 39 (1974). Type: Kenya, Kiambu District: Kikuyu, anno 1899, Jackson s.n. (BM!, holo.)
Coreopsis jacksonii S.Moore [family COMPOSITAE], in J.L.S. 35: 347 (1902)
Guizotia reptans Hutch. [family COMPOSITAE], in K.B. 1914: 17 (1914); R.E. Fr. in Acta Horti Berg. 9, 6: 141 (1928); Thulin in Bot. Not. 123: 489, 492 (1970); J. Baagøe in Bot. Tidsskr. 69: 23, fig. 18 (1974); U.K.W.F. ed. 2: 216 (1994). Type: Kenya, Nyandarua/Aberdare Mts, Battiscombe 530 (K!, holo.)
Bidens spathulata Sherff [family COMPOSITAE], in Bot. Gaz. 76: 149, t. 13 (1923). Type: Kenya, Mt Kenya W slopes, Mearns 1291 (ubi?)
Bidens jacksonii (S.Moore) Sherff [family COMPOSITAE], in Bot. Gaz. 81: 45 (1926)
Guizotia reptans R.E.Fr. var. keniensis [family COMPOSITAE], in Acta Horti Berg. 9, 6: 142, t. 2, fig. 5 (1928); Blundell, Wild Fl. E. Afr.: pl. 364 (1987). Types: Kenya, Mt Kenya W, Forest Station, Fries & Fries 756 (K!, SYN.) & Mt Kenya, between Coles Mill & Forest Station, Fries & Fries 756a (S, SYN.)
Coreopsis jacksonii Sherff var. arthrochaeta [family COMPOSITAE], in Bot. Gaz. 88: 302 (1929). Type: Kenya, Nyandarua/Aberdare Mts, Camp Gusisu, Piemeisel & Kephart 166 (US, holo.)
Information
Perennial herb, creeping, sparsely branched, 3–30 cm long, rooting at the nodes and sometimes mat-forming; stems glabrous. Leaves of a pair unequal or equal, sessile, elliptic to oblanceolate, 1–6.2 cm long, 0.5–2.5 cm wide, base tapering to a connate part, margins remotely and minutely glandular-dentate and often revolute, apex acute or obtuse, glabrous or pilose to almost scabrid or pilose only on veins and margins. Capitula solitary in upper leaf axils; stalks of individual capitula 0.5–3 cm long; involucre 7–12 mm long; phyllaries ciliate; paleae yellowish, to 3 mm long. Ray florets 4–9, yellow, tube to 2 mm long, rays 7–12(–15) mm long; disc florets 7–13, 3.7–5 mm long. Achenes brown, 3.5 mm long; pappus absent.
Range
DISTR. U 3; K 2–6 endemic to Elgon, Cherangani, Nyandarua/Aberdares, Mau and Mt Kenya
Altitude range
2350–3900 m
Distribution
KENYA West Suk District Kapseis, Aug. 1968, Thulin & Tidigs 68!KENYA Naivasha District Nyandarua/Aberdare Mts, Mutubio Gate, Oct. 2000, Smith et al. 52!KENYA North Nyeri District Mt Kenya, Sirimon Track, Dec. 1974, Williams Sangai 77!UGANDA Mt Elgon, Piswa trail, Oct. 1997, Wesche 1940!
Notes
USES.None recorded on specimens from our areaCONSERVATION Least concern (LC)

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