Jarava plumosa* (Spreng.) S.W.L.
Jacobs & J. Everett. Telopea 7: 301 (1997).
Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Stipeae.
Basionym and/or
Replacement Name: Calamagrostis
plumosa Spreng., Syst. Veg. 1: 253 (1825 [1824]).
Type of Basionym or
Protologue Information: IT: F. Sello s.n., Uruguay: Montevideo
(US).
Recent synonyms:
Stipa papposa , Achnatherum papposum (Nees) Barkworth
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia,
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia
(105), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2
(62).
Illustrations:
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (106, fig. 68), [2009]. A.Wilson (ed.),
Flora of Australia
44A: Poaceae 2 (63, Fig 9).
Habit.
Perennial. Culms erect or geniculately ascending, 30–300 cm tall. Mid-culm
nodes glabrous. Lateral branches branched. Leaf-sheaths glabrous on surface.
Ligule an eciliate membrane, 0.1–2 mm long, membranous, truncate. Leaf-blades
flat or involute or convolute, 10–20 cm long, 0.2–4 mm wide.
Inflorescence.
Inflorescence compound, a panicle. Panicle linear, 10–25 cm long.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, terete, 8–10 mm long.
Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 3 -nerved. Upper glume lanceolate, 5–9 mm long, membranous,
without keels, 3 -nerved.
Florets.
Fertile lemma 5–7 mm long, without keel, 5 -nerved. Lemma surface indumented.
Lemma apex awned, 1 -awned. Median (principal) awn 15–40 mm long overall, with
a straight or slightly twisted column. Column 3.5 mm long. Palea without keels.
Lodicules present. Anthers 3. Grain 4 mm long.
Continental
Distribution: South America.
Australian
Distribution: South Australia.
South Australia: Southern Lofty.
Notes. A South
American species, thus far only occuring in the Southern Lofty region of South Australia.
