Agrostis avenacea J.F.Gmel.

Pacific bentgrass (en)

Species

Angiosperms > Poales > Poaceae > Agrostis

Characteristics

Annual, 180-600 mm high. Leaf blade up to 170 x 2 mm, flat; ligule an unfringed membrane. Inflorescence an open panicle, 80-190 mm long. Spikelet 2.5-4.0 mm long, laterally compressed; rachilla less than 1/2 as long as spikelet; glumes ± equal, as long as to longer than spikelet, acute to acuminate, 1-nerved, keels scaberulous. Floret 1, disarticulating above glumes; bisexual; lemma less firm than glumes, hairy, 4-nerved, awn arising from middle of back; awn 4.0-7.5 mm long; usually fine, geniculate; palea subequal to shorter than lemma; callus hairs up to 0.5 mm long; anther 0.2-4.0 mm long. Flowering time July-Mar.
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Annual 180-600 mm high. Leaf blade to 170 x ± 2 mm, flat. Inflorescence 80-190 mm long, open. Spikelet 2.5-4.0 mm long; rachilla less than 1/2 as long as spikelet; glume 2.0-3.5 mm long, acute to acuminate, 1-nerved, keels scaberulous, awnless; lemma hairy, hairs up to 0.5 mm long, not spreading, 5-nerved, awned from middle of back; awn usually fine, geniculate; palea ± equal to slightly shorter than lemma; callus hairs up to 1/3 the lemma length; anther 0.2-4.0 mm long.
An annual plant; 0.18-0.60 m high. Leaf blades up to ± 170 x 2 mm. Flowers: panicle open; 80-190 mm long; spikelets 2.5-4.0 mm long; rachilla < 1/2 length of floret; glumes 2.0-3.5 mm long; lemmas hairy; 4-nerved; hairs up to 0.5 mm long; not spreading.
Annual to 60 cm. Leaves linear. Spikelets in an open panicle, 2.5-4.0 mm long.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.18 - 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity 5-8
Soil texture 1-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-11

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Agrostis avenacea unspecified picture

Distribution

Agrostis avenacea world distribution map, present in United States of America and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:385460-1
WFO ID wfo-0000843276
COL ID B9DP
BDTFX ID 1444
INPN ID 80579
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Agrostis avenacea Agrostis forsteri Agrostis solandri Lachnagrostis avenacea Calamagrostis filiformis Calamagrostis forsteri Calamagrostis willdenowii Deyeuxia filiformis Lachnagrostis forsteri Agrostis filiformis Agrostis novae-hollandiae Lachnagrostis willdenowii Agrostis avenacea var. avenacea