Compilation
Sonchus bipontini

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Name

Identification
Isotype of Sonchus bipontini Asch. [family ASTERACEAE ] (stored under name); Verified by Boulos,L., Sonchus lactucoides Sch.Bip. [family ASTERACEAE ]
Related name
  • Sonchus bequaertii
  • Sonchus lactucoides
  • Sonchus oliveri-hiernii
  • Sonchus bipontini
  • Launaea cornuta
  • Sonchus exauriculatus

Flora

Entry for SONCHUS bipontini Asch. [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 1, page 1, (2000) Author: H. J. Beentje, M.Sc., Ph.D., F.L.S.
Names
SONCHUS bipontini Asch. [family COMPOSITAE], in Schweinf., Beitr. Fl. Aethiop.: 160 (1867); Oliv. & Hiern in F.T.A. 3: 458 (1877); R.E. Fr. in Acta Horti Berg. 8: 100 (1924); C. Jeffrey in K.B. 18: 479 (1966); Boulos in Bot. Notis. 127: 411 (1974); Lawalrée, Dethier & Gilissen in F.A.C. Compositae: Cichorioideae: 34 (1986); G.V. Pope in F.Z. 6: 226 (1992); U.K.W.F. ed. 2: 230 (1994). Type: Ethiopia, near Dschenausam [Tchénausa], Schimper 1299 (P!, holo., BM!, G, K!, L, W, iso.)
SONCHUS lactucoides A. Rich. [family COMPOSITAE], Tent. Fl. Abyss. 1: 467 (1848), non Bunge (1835), nom. illegit. Type: as for S. bipontini Asch.
SONCHUS bipontini R.E. Fr. forma glanduligerus [family COMPOSITAE], in Acta Horti Berg. 8: 101 (1924). Type: Congo (Kinshasa), S end of Lake Kivu, Fries 1487a (UPS, holo.)
SONCHUS bequaertii De Wild. [family COMPOSITAE], Pl. Bequaert. 5: 461 (1932). Types: Congo (Kinshasa), Lanuri, Bequaert 4476 (BR!, lecto.)
SONCHUS bipontini (R.E. Fr.) Robyns var. glanduligerus [family COMPOSITAE], in Fl. Spermat. Parc Nat. Albert 2: 596 (1947); Boulos in Bot. Notis. 127: 412 (1974); Lawalrée, Dethier & Gilissen in F.A.C. Compositae: Cichorioideae: 35 (1986)
SONCHUS bipontini Robyns var. louisii [family COMPOSITAE], in B.J.B.B. 17: 105 (1943); Boulos in Bot. Notis. 127: 414 (1974); Lawalrée, Dethier & Gilissen in F.A.C. Compositae: Cichorioideae: 35 (1986). Type: Congo (Kinshasa), between Buronga and Kikeri swamp, Louis 5161 (BR!, holo.)
Information
Perennial herb, usually weak-stemmed, from a stout rootstock, 0.4–1.5 m high; stems scrambling or straggly, to 9 m long; stems often reddish, hollow, glabrous or distally glandular-setose. Leaves shiny above, glaucous beneath, sessile, linear-elliptic to lanceolate, 4–20 cm long, 0.2–1.6 cm wide, base attenuate and shortly sagittate in proximal leaves, in distal leaves semi-amplexicaul and sub-auriculate, margins entire or less often with recurved teeth or spinules, sometimes lobed with the lobes narrowly triangular and to 2 cm long, apex attenuate, glabrous. Capitula solitary or in few-headed rather dense Groups, these in turn in lax leafy corymbs or panicles; stalks of individual capitula short, white-tomentose and sometimes with stalked glands extending further down the inflorescence; involucre cylindric to campanulate, eventually with reflexed phyllaries, 10–15(–18,K3) mm long; phyllaries green with reddish or purplish tinge or tips, narrowly ovate to lanceolate, 2.5–13 mm long, obtuse, white-tomentose proximally, becoming more glabrous distally and on the inner phyllaries, distally ciliate, sometimes the outer and distal part of the inner glandular-setose. Florets many per capitulum; corolla yellow, tube cylindric, 6–10 mm long, distally pilose; ligules 3–6.5 mm long, 0.5–1.2 mm wide. Achenes pale or reddish brown, narrowly ellipsoid, slightly flattened, 2.5–3.5 mm long, ribbed, rugulose but glabrous; pappus white, 7–11 mm long.
Range
DISTR. U 1–3; K 1, 3, 5; T 2, 4, 6, 7
Altitude range
(900–)1500–3150 m
Distribution
KENYA Northern Frontier District Mt Kulal, Nov. 1978, Hepper & Jaeger 7114!KENYA Trans-Nzoia District Mt Elgon, above Tweedie’s sawmill, Feb. 1948, Hedberg 66!KENYA N Kavirondo District SE Elgon, Laboot track, Mar. 1977, Hooper & Townsend 1389!TANZANIA Kigoma District Mahali Mts, Sisaga, 1958, Newbould & Jefford 1781!TANZANIA Morogoro District Uluguru Mts, Bunduki, July 1965, Harris 121!TANZANIA Njombe District Milo, Oct. 1978, Archbold 2528!UGANDA Karamoja District Kalapata, Apr. 1960, J. Wilson 903!UGANDA Toro District Ruwenzori, Nyabitaba Hut, Jan. 1969, Lye 1378!UGANDA Mbale District Elgon, above Bulambuli, Nov. 1933, Tothill 2348!
Distribution (external)
; Congo (Kinshasa)
Rwanda
Sudan
Ethiopia
Malawi
Notes
Several plants from S Tanzania show most characteristics of S. bipontini, but have tiny recurved lobes on the leaves. The leaves are very narrow. The collections are: Ufipa (T4), Richards 3442; Ulugurus (T6), Bunduki, Harris 121; Ngozi, Poroto Mts (T7), Richards 6540; Iringa (T7), Dabaga, Geilinger s.n.; and Mufindi (T7), Lupeme Tea Estate, Perdue & Kibuwa 11310.

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