Compilation
Sorghastrum rigidifolium

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Name

Identification
Sorghum rigidifolium Stapf [family POACEAE ] Sorghastrum rigidifolium (Stapf) Chippind. ex Pole-Evans [family POACEAE ] (stored under name);
Related name
  • Sorghum rigidifolium
  • Sorghastrum rigidifolium
  • Miscanthidium fuscescens
  • Sorghastrum stipoides
  • Sorghastrum fuscescens

Flora

Entry for SORGHASTRUM stipoides (Kunth) Nash [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
SORGHASTRUM stipoides (Kunth) Nash [family POACEAE], N. Amer. Fl. 17: 129 (1912). Type: Colombia, Popaya to Almaguer, Humboldt & Bonpland (P, hole, K, microfiche!)
Andropogon stipoides Kunth [family POACEAE], in H.B.K., Nov. Gen. Sp. 1: 189 (1816)
Andropogon trichopus Stapf [family POACEAE], in K.B. 1897: 287 (1897). Type: Nigeria, Nupe, Barter 1375 (K, holo.!)
Sorghum trichopus (Stapf) Stapf [family POACEAE], in F.T.A. 9: 141 (1917)
Sorghum rigidifolium Stapf [family POACEAE], in F.T.A. 9: 143 (1917); Ann. list grasses Ug.: 44 (1947); Imp. Grassl. Pl. Kenya: 70 (1951). Types: Kenya, Nairobi, Lyne 146 & without locality, Powell 137 (both K, syn.!)
Sorghum rigidifolium Stapf var. microstachyum [family POACEAE], in F.T.A. 9: 143 (1917); Ann. list grasses Ug.: 44 (1947). Type: Kenya, Kavirondo, Scott Elliot 7050 (K, holo.!)
Sorghastrum trollii Pilg. [family POACEAE], in N.B.G.B. 14: 95 (1938); G.T.: 98 (1965). Type: Tanzania, Iringa District, Dabaga, Troll 5268 (whereabouts uncertain, not B)
Sorghastrum trichopus (Stapf) Pilg. [family POACEAE], in E. & P. Pf., ed. 2, 14e: 142 (1940); Clayton in F.W.T.A., ed. 2, 3: 468 (1972)
Sorghastrum rigidifolium (Stapf) Chippindall [family POACEAE], in Pole-Evans, Mem. Bot. Surv. S. Afr. 22: 247 (1948); R.K.G.: 55 (1958); Ann. list Nyasaland grasses: 60 (1958); I.G.U.: 55 (1960); G.T.: 98 (1965)
Information
Tufted perennial arising from a short rhizome; culms 90–200 cm. high. Leaf-blades often rolled, 15–50 cm. long, 3–7(–12) mm. wide. Panicle linear to narrowly lanceolate, 15–40 cm. long, with capillary peduncles; racemes composed of 1–4 sessile spikelets, each accompanied by a barren pedicel (rarely the lowest spikelet in a raceme accompanied by a fertile pedicelled spikelet). Spikelets lanceolate, 4–6(–6.5) mm. long; callus rounded, shortly bearded; lower glume coriaceous, shining, without visible nerves, glabrescent to loosely hairy with white or grey hairs; awn geniculate, (0–)4–13(–25) mm. long. Fig. 169.
Range
DISTR. U1–4; K3–7; T1, 4, 6–8 tropical Africa and tropical south America
Altitude range
0–1900 m.
Distribution
KENYA Fort Hall District Thika, 5 Oct. 1969, Faden & A. Evans 69/1295!KENYA Nairobi National Park, 30 May 1959, McCallum Webster K.1856!KENYA S. Kavirondo District Kabondo-Oyugis, 15 Mar. 1951, Bogdan 2941!TANZANIA Bukoba District Minziro Forest Reserve, Dec. 1958, Procter 1091! & Bugandika, Jan. 1932, Haarer 2451!TANZANIA Musoma District Wogakuria Hill, 30 Dec. 1964, Greenway & Turner 12008!UGANDA Mbale District Malaba R. near Tororo, 1 Mar. 1936, Michelmore 1201!UGANDA Masaka District Makole, 22 Apr. 1935, A.S. Thomas 1265! & near Lake Nabugabo, 23 June 1929, Snowden 1384!
Notes
A polymorphic species, indistinctly differentiated from S. nudipes Nash of southern Africa. The latter has spikelets (5–)6–7(–9) mm. long; the lower glume thinly coriaceous, copiously pilose, the nerves apparent in the upper half.

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