Sphenopus divaricatus*

Sphenopus divaricatus* (Gouan) Reichb. Fl. Germ. Excurs. 45 (1830).

Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Poeae.

Basionym and/or
Replacement Name:
 Poa divaricata
Gouan, Ill. Observ. Bot. 3: 4, t. 2, f. 1 (1773).

Type of Basionym or
Protologue Information
: LT: Gouan, Obs. Bot. t. 2, f. 1 (1773) LT
designated by ?.

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
(168), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A.
Poaceae 2 (339).

[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia  (169, fig. 119), [2009]. A.Wilson (ed.),
Flora of Australia
44A: Poaceae 2 (341, Fig. 45).

Habit. Annual.
Culms erect or decumbent, 2.5–30 cm tall. Ligule an eciliate membrane, 0.6–4 mm
long, obtuse or acute. Leaf-blades filiform, convolute, 0.8–5 cm long, 0.3–1 mm

Inflorescence compound, a panicle. Panicle ovate, 1.5–10 cm long.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (2–5), comprising 2–5 fertile floret(s), with diminished florets at the
apex, elliptic, laterally compressed, 1.9–3 mm long.

Glumes. Glumes
dissimilar, thinner than fertile lemma. Lower glume ovate or orbicular,
hyaline, without keels, 0 -nerved. Upper glume oblong, 0.5–1 mm long, hyaline,
keeled, 1-keeled, (0–)1 -nerved.

Fertile lemma 1.2–2 mm long, keeled, 3 -nerved. Lemma apex muticous. Anthers 3.
Grain 0.75–1.25 mm long.

: Europe, Africa, Temperate Asia, and Australasia.

: South Australia.

South Australia:
Eyre Peninsula, Northern Lofty, Yorke Peninsula, Southern Lofty.

Notes. Salt
swamps and lakes and sandy soils. Flowers (May)-Oct.


AVH 2011


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith