Compilation
Panicum colonum

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Name

Identification
Panicum colonum L. [family POACEAE ] (stored under name); Echinochloa colonum (L.) Link [family POACEAE ]
Related name
  • Panicum daltonii
  • Urochloa reptans
  • Panicum equitans
  • Panicum haplocladum
  • Echinochloa crus-pavonis
  • Panicum reptans
  • Panicum holubii
  • Panicum colonum
  • Echinochloa micans
  • Echinochloa colona
  • Echinochloa cruspavonis
  • Echinochloa colonum
  • Brachiaria reptans
  • Echinochloa pyramidalis
  • Echinochloa haploclada
  • Echinochloa holubii
  • Echinochloa bussei
  • Panicum parvifolium
  • Panicum bussei
  • Echinochloa glabrescens
  • Echinochloa nitida

Flora

Entry for ECHINOCHLOA crus-pavonis (Kunth) Schult. [family POACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 451, (1982) Author: W. D. CLAYTON and S.A. RENVOIZE
Names
ECHINOCHLOA crus-pavonis (Kunth) Schult. [family POACEAE], Syst. Veg. Mant. 2: 269 (1824); F.T.A. 9: 612 (1920); Fl. Agrost. Congo Belge 2: 140 (1934); Ann. list grasses Ug.: 16 (1947); F.P.N.A. 3: 92 (1955); F.P.S. 3: 44 (1956); Ann. list Nyasaland grasses: 37 (1958); I.G.U.: 27 (1960); G.T.: 65 (1965); Clayton in F.W.T.A., ed. 2, 3: 440 (1972). Type: Venezuela, Bordones, Humboldt (whereabouts uncertain)
Oplismenus crus-pavonis Kunth [family POACEAE], in Humb. & Bonpl., Nov. Gen. & Sp. 1: 108 (1815)
Panicum crus-pavonis (Kunth) Nees [family POACEAE], Agrost. Bras.: 259 (1829)
Panicum crus-pavonis Stapf var. rostratum [family POACEAE], in Fl. Cap. 7: 396 (1898). Types: South Africa, Natal, Buchanan 269 (K, syn.!) and several other syntypes
Echinochloa crus-galli (Kunth) Hitchc. var. crus-pavonis [family POACEAE], in Contrib. U.S. Nat. Herb. 22: 149 (1920); Pfitscher & Barreto in An. Tec. Inst. Pesq. Zootec. Franciso Osorio 3: 272 (1976)
Panicum colonum Peter var. bussei [family POACEAE], F.D.O.-A. 1: 179 (1930). Types: Tanzania, Rungwe District, Kyimbila, Stolz 1297 (B, syn.!, K, isosyn.!) & several other syntypes
Information
Robust perennial (rarely annual); culms stout, 50–200 cm. high, often decumbent and rooting in mud at the lower nodes. Leaf-blades broad, 15–60 cm. long, 5–25 mm. wide, thin in texture, often lush; ligule absent; sheaths smooth. Inflorescence large, loose, untidily ovate, 10–30 cm. long, the racemes mostly compound with short secondary branchlets; lowest raceme 3–15 cm. long. Spikelets elliptic, 2–3(–3.5) mm. long, hispid; lower floret ♂ or barren, acute to acuminate or with a short curved awn 1–3(–7) mm. long; upper lemma 2–2.5(–3) mm. long.
Range
DISTR. U1–4; K1, 6; T1, 4, 6–8 tropical and South Africa; tropical America
Altitude range
800–2000 m.
Distribution
KENYA Northern Frontier Province Mathews Range, 12 June 1959, Kerfoot 1037KENYA Masai District Mara R., Mara Ranch, 8 Oct. 1961, Glover et al. 2625!TANZANIA Mwanza District Kalemera, 17 Apr. 1953, Tanner 1458!TANZANIA Ufipa District Muse–Kafukola, R. Vuma, 20 Mar. 1959, McCallum Webster T 177!TANZANIA Mbeya District Mbozi meteorite, 1969, Wingfield 795!UGANDA W. Nile District Lendu, 18 Mar. 1945, Greenway & Eggeling 7227UGANDA Kigezi District near Buyenja, 22 Feb. 1929, Snowden 1306! & Rubabu, Jan. 1951, Purseglove 3526!
Notes
This species is a segregate from E. crus-galli, distinguished by smaller spikelets and a large inflorescence whose racemes bear copious secondary branchlets. It is the characteristic species of tropical Africa, where E. crus-galli scarcely occurs; but in S. America, where it is sympatric with E. crus-galli, the boundary between the two species is very indistinct.

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