Bromus secalinus

Tracheophyta MagnoliopsidaPoaceaeBromusBromus secalinus


An annual or biennial of cereal fields, which is also found as a casual on waste ground, and occasionally in improved leys. Lowland.



World Distribution

B. secalinus evolved in cultivation or spread in prehistory as a weed, perhaps a mimic of rye, from an unknown native range.

Broad Habitats

Arable and horticultural (includes orchards, excludes domestic gardens)

Light (Ellenberg): 6

Moisture (Ellenberg): 4

Reaction (Ellenberg): 5

Nitrogen (Ellenberg): 4

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.9

July Mean Temperature (Celsius): 15.8

Annual Precipitation (mm): 816

Height (cm): 90

Perennation - primary


Life Form - primary

Therophyte (annual land plant)



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 403

Count of 10km squares in Ireland: 19

Count of 10km squares in the Channel Isles: 4

Atlas Change Index: -1.15

JNCC Designations


Atlas text references

Atlas (388b)
Beckett G, Bull A, Stevenson R
1999.  A flora of Norfolk.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.