Compilation
Aristida pseudohordeacea

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Name

Identification
Aristida pseudohordeacea Stent & J.M.Rattray [family POACEAE ] Aristida hordeacea Kunth [family POACEAE ] (stored under name);
Related name
  • Aristida pseudohordeacea
  • Aristida hordeacea

Flora

Entry for ARISTIDA hordeacea Kunth [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, Part (Part 1), page 1, (1970) Author: W. D. Clayton
Names
ARISTIDA hordeacea Kunth [family POACEAE], Rév. Gram. 2: 517, t. 173 (1831); Ann. list grasses Ug.: 4 (1947); F.P.S. 3: 395 (1956); R.K.G.: 33 (1958); Ann. list Nyasaland grasses: 29 (1958); I.G.U.: 16 (1960); G.T.: 23 (1965). Type: Senegal, Leprieur (P, iso.!)
ARISTIDA steudeliana Trin. & Rupr. [family POACEAE], Sp. Gram. Stip.: 155 (1842). Types: Sudan Republic, Kordofan, Abu-Gerad, Kotschy 33 & Ethiopia, Gapdia, Schimper 804 (both K, isosyn.!)
ARISTIDA pseudohordeacea Stent & Rattray [family POACEAE], in Proc. Rhod. Sci. Assoc. 32: 45 (1933), as “ pseudohordacea”. Type: Rhodesia, Victoria Falls, Brain in S.R.G.H. 5827 (K, iso.!)
Information
Erect annual 10–90 cm. high; culm-internodes pubescent. Leaf-blades 5–20 cm. long and up to 5 mm. wide, flat or folded, keeled, scabrid, abruptly narrowed at the tip; sheaths compressed and keeled. Panicle spike-like, linear-oblong to subovate, typically 5–15 cm. long, dense and bushy or ± interrupted at the base. Spikelets green or purple; glumes lanceolate, scaberulous on the keel, glabrous or hispidulous on the flanks, the lower 5–8 mm. long with an awn 2.5–5 mm. long, the upper 6–9 mm. long with an awn 1–4 mm. long; lemma terete, 5–7 mm. long, scabrid with lines of hooked prickles, furrowed ventrally, articulated at the apex; callus narrowly oblong, 0.5–0.8 mm. long, obtuse; awns without a column, subequal, 2.5–3.5 cm. long. Fig. 48.
Range
DISTR. U1; K2; T1, 4–8 throughout tropical Africa
Altitude range
400–1600 m.
Distribution
KENYA W. Suk District 64 km. N. of Kitale, 4 June 1952, Bogdan 3414! & 32 km. NW. of Kapenguria, 12 Dec. 1953, Bogdan 3885! & Riwa, D. J. Pratt 341!TANGANYIKA Old Shinyanga, 6 May 1931, B. D. Burtt 2544!TANGANYIKA Musoma District Seronera to Kirawira Guard Post near Grumeti R., 24 Apr. 1961, Greenway 10089!TANGANYIKA Masasi-Mwiti [Muiti], 25 Apr. 1935, Schlieben 6414!UGANDA Karamoja District Lochoi, 24 May 1940, A. S. Thomas 3521A! & 6 km. S. of Moroto, 13 Sept. 1956, Bally & Hardy 10803! & 1 km. from Karita, 10 Oct. 1964, Leippert 5099!
Notes
Sometimes confused with 22, A. congesta due to the similar panicle shape, but this species has an obvious column surmounting the lemma.

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