Bromus tectorum*

Bromus tectorum* Linn. Sp. Pl.
77 (1753).

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

Type of Basionym or
Protologue Information
: LT: Anon., Europe (LINN-93.25). LT
designated by Smith, Notes Roy. Bot. Gard. Edinb. 42: 500 (1985).

Recent synonyms:
B. tectorum var. hirsutus.

Key references
(books and floras):
[1810]. R.Brown, Prodromus (178 as Bromus
), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses
of New South Wales
(177), [2009] A.Wilson (ed.). Flora of Australia,
Vol 44A. Poaceae 2 (88).

[2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South
, 4th edn (177).

Habit. Annual.
Culms erect or geniculately ascending, 5–60 cm tall, 2–5 -noded. Leaf-sheaths
hairy. Ligule an eciliate membrane, 2–5 mm long, lacerate. Leaf-blades 2–16 cm
long, 1.5–4 mm wide. Leaf-blade surface indumented.

Inflorescence compound, a panicle. Panicle oblong, 4–18 cm long.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (2–8), comprising 1–8 fertile floret(s), with diminished florets at the
apex, cuneate, laterally compressed, 10–25 mm long.

Glumes. Glumes
dissimilar. Lower glume linear, chartaceous, keeled, 1-keeled, 1 -nerved. Upper
glume lanceolate, 6–13 mm long, chartaceous, keeled, 1-keeled, 3 -nerved.

Fertile lemma 9–16 mm long, without keel or keeled, 3–7 -nerved. Lemma surface
glabrous or indumented. Lemma apex dentate, awned, 1 -awned. Median (principal)
awn subapical or dorsal, 10–25 mm long overall. Lodicules present. Anthers 3.

: Europe, Africa, Temperate Asia, Tropical Asia, Australasia,
Pacific, North America, and South America.

: New South Wales, Victoria.

New South Wales:
Central Coast, Southern Tablelands, South-Western Plains. Victoria:
Gippsland Plain, Riverina, Volcanic Plain.

Introduced. Weed of disturbed areas. Flowers Sept.-Dec. Fruits Sept.-Dec.

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