Bromus sitchensis Trin.

Alaska brome (en), Brome de Sitka (fr)

Species

Angiosperms > Poales > Poaceae > Bromus

Characteristics

Robust, erect, perennial tufts, 90-150 cm, with wide, bright green leaves. Leaf-sheath glabrous apart from a few hairs at margins just below ligule, green, becoming brownish or purplish. Ligule 3-3.5 mm, denticulate, abaxially with long hairs near margins. Leaf-blade 18-25 cm × 5-12 mm, abaxially minutely scabrid on nerves, adaxially smooth, margins extremely finely scabrid, sometimes with a few scattered hairs. Culm erect, internodes smooth, but finely scabrid just below panicle. Panicle 20-30 cm, with erect, scabrid branches, lower branches later spreading, becoming reflexed. Spikelets 4-5 cm, 7-10-flowered, linear, green to purple-suffused, rachilla exposed at maturity. Glumes subequal, acute to acuminate, smooth, with scabrid keel; lower c. 12 mm, 3-5-nerved, upper c. 13 mm, 7-9-nerved. Lemma 14-16 mm, 7-9-nerved, keeled, very minutely scabrid to almost smooth, keel minutely scabrid, sometimes keel and flanks with a few scattered, minute hairs near base; awn 4.5-9 mm. Palea very slightly < lemma. Callus with minute hairs. Rachilla scabrid to minutely pubescent. Anthers 0.4-0.5 mm in cleistogamous flowers, 3-5 mm in chasmogamous flowers. Caryopsis c. 7 × 1.5 mm.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination anemogamy
Spread epizoochory
Mature width (meter) -
Mature height (meter) 1.5
Root system -
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 2-4
Soil humidity 2-3
Soil texture -
Soil acidity 4-8
Soil nutriment -
Hardiness (USDA) 4-7

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -35
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Bromus sitchensis unspecified picture

Distribution

Bromus sitchensis world distribution map, present in Austria, France, New Zealand, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:30105543-2
WFO ID wfo-0000856529
COL ID NDDP
BDTFX ID 11143
INPN ID 86758
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Bromus sitchensis Ceratochloa sitchensis

Lower taxons

Bromus sitchensis var. aleutensis Bromus sitchensis var. sitchensis