Eragrostis barrelieri Daveau

Mediterranean lovegrass (en), Éragrostide de Barrelier (fr), Éragrostis de Barrelier (fr)

Species

Angiosperms > Poales > Poaceae > Eragrostis

Characteristics

Loosely tufted annuals, often aromatic. Culms erect or geniculate, 9.5–45 (–75) cm high, with glandular rings below nodes. Leaves mostly basal, usually with pitted glands on sheath and blade margins and midnerve; ligule 0.5–1 mm long; blade straight, rigid, usually flat and to 4.5 mm wide, partly scabrous. Panicles terminal and axillary. Terminal panicles usually loose, 4–9.5 (–15) cm long, 2.5–5 (–8) cm wide; rachis and branches glandular; primary branches without spikelets in lower quarter. Spikelets pedicellate, linear to lanceolate, 5–23 mm long, 1–2 mm wide, often olivegreen, sometimes cleistogamous; rachilla flexuose; florets 7–41, closely overlapping, with median groove. Glumes unequal (lower glume 0.5–1 mm long and upper glume 1–1.8 mm long) or ±equal (1.2–1.8 mm long), ovate. Lemma elliptic, 1.8–2.5 mm long, obtuse, membranous, with blunt glandular-tuberculate keel, 3-nerved. Palea: body oblong or elliptic, ciliolate at apex; flaps distinctly narrower than body. Stamens 3; anthers 0.1–0.2 mm long. Grain laterally compressed, quadrangular or obtusely trigonous, 0.5–1 mm long, flat or concave on one side, smooth, brown.
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Spikelets 5–7(15) × 1.5–1.8 mm, narrowly oblong to linear, laterally compressed, 9–12(25)-flowered, the lemmas disarticulating from below upwards, the rhachilla persistent; glumes unequal, keeled, lanceolate in profile, scaberulous on the keel, eglandular, acute at the apex, the inferior 0.8–1.5 mm long, reaching to between 1/2 and 3/4 the way along the adjacent lemma, the superior 1.3–2.1 mm long, reaching to about the middle of the adjacent lemma; lemmas 1.7–2.3 mm long, keeled, oblong-lanceolate in profile, chartaceous with distinct lateral nerves, diverging from the rhachilla at less than 45°, those in opposite rows scarcely imbricate, the rhachilla ± visible between them, green to leaden-grey or reddish, scaberulous on the keel, eglandular, obtuse at the apex; palea persistent, glabrous on the flanks, the keels slender, wingless, scaberulous; anthers 3, 0.2–0.3 mm long.
Laxly tufted annual to 300(600) mm high, erect to geniculate; culm nodes with or without glands below. Leaf blade to 100 x to 3.5 mm; margins eglandular, scabrid. Inflorescence open, primary branches usually not longer than 40 mm, spreading, not whorled; axils glabrous; pedicels stout, crateriform glands usually present. Spikelet 5-15 x 1.0-2.2 mm, rachilla persistent, lemmas and/or paleas breaking up from base upwards; glumes unequal sometimes almost equal on same inflorescence, apex acute; lemma 1.7-2.3 mm long, obtuse, keeled, lateral nerves distinct, glabrous, scaberulous; palea persistent, keels slender, scabrid, margins very wide apart; anthers 3, 0.2-0.3 mm long; caryopsis oblong-elliptic.
Erect to geniculate, laxly tufted, annual, up to 300 mm high. Leaf blade up to 100 x 3.5 mm; ligule a fringe of hairs. Inflorescence an open panicle, primary branches usually not longer than 40 mm, spreading; pedicels stout. Spikelets 5-15 x 1.5-1.8 mm, laterally compressed; rachilla persistent, lemmas and/or paleas breaking up from base upwards; glumes unequal, shorter than spikelet, 1-nerved. Florets many; lemma obtuse, entire, 3-nerved; palea keels scabrid; anthers 3, 0.2-0.3 mm long. Flowering time Dec., Jan. Caryopsis oblong-elliptic.
Annual; up to 0.3 m high; laxly tufted; erect to geniculate. Leaf blades up to 100 x 3.5 mm. Flowers: panicle open; primary branches usually < 40 mm long; spreading; pedicels stout; spikelets 5-15 x 1.5-1.8 mm; spikelet rachilla persistent; lemmas and/or paleae breaking up from base upwards; glumes unequal; lower glume large; distinctly keeled; lemmas 1.7-2.3 mm; obtuse; palea keels scabrid; anthers 3; 0.2-0.3 mm long; caryopsis oblong-elliptic.
Annual, laxly tufted (erect to geniculate), up to 300 mm tall. Leaf blades up to 100 mm long, up to 3.5 mm wide. Spikelets 5-15 mm long, 1.5-1.8 mm wide. Inflorescence open, primary branches usually not longer than 40 mm, spreading, pedicels stout; spikelet rhachilla persistent, lemmas and/or paleas breaking up from base upwards; glumes unequal; lemma obtuse; palea keels scabrid; anthers 3.0,2-0.3 mm long. Caryopsis oblong-elliptic.
Loosely caespitose annual; culms up to 40(60) cm tall, erect or ascending, branched or unbranched, glabrous at the nodes, with or without glandular pits below the nodes, these often coalescent into a ring; leaf sheaths glabrous, eglandular; ligule a line of hairs; leaf laminas 3–13 cm × 2.5–3.5 mm, linear, flat or involute, glabrous, eglandular.
An erect annual grass. It forms tufts. It often has an aroma. It grows 10-45 cm high. The leaf blades are 10 cm long by 5.5 mm wide. They can be flat or rolled inwards. The flower panicle is 3-20 cm long and sword shaped. It is usually open with stiff branches. The flowers are green and purple. The seeds are up to 1 mm long and dark brown
Panicle 7–16 cm long, oblong to ovate-oblong, open, stiffly branched, the spikelets evenly distributed on pedicels 1–3 mm long, these with one or two crateriform glands, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils.
Closely resembles E. minor, differing in the narrower unequal glumes, longer appressed lemmas and eglandular leaf margins.
Caryopsis 0.6–1 mm long, elliptic-oblong, very rarely shorter and broader.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination anemogamy
Spread barochory
Mature width (meter) -
Mature height (meter) 0.2 - 0.38
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c4

Environment

A subtropical plant. It grows on sand. It grows in subtropical and warm temperate places. In Argentina it grows from sea level to 2,000 m above sea level.
Light 7-9
Soil humidity 1-3
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-12

Usage

Uses animal food
Edible seeds
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

Leaf

Eragrostis barrelieri leaf picture by rollan susi (cc-by-sa)

Fruit

Eragrostis barrelieri fruit picture by Anne Maugé (cc-by-sa)

Distribution

Eragrostis barrelieri world distribution map, present in Afghanistan, Åland Islands, Australia, Botswana, Switzerland, Colombia, Cuba, Czech Republic, Dominica, Denmark, Algeria, Ecuador, Egypt, Eritrea, Spain, Ethiopia, France, Greece, Haiti, Iran (Islamic Republic of), Iraq, Italy, Jamaica, Kuwait, Libya, Morocco, Mali, Myanmar, Mozambique, Mauritania, Malaysia, Namibia, Nigeria, Netherlands, Oman, Pakistan, Palau, Puerto Rico, Portugal, Saudi Arabia, Sudan, Singapore, Somalia, eSwatini, Turks and Caicos Islands, Chad, Turkmenistan, Tunisia, Uruguay, United States of America, Yemen, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:322547-2
WFO ID wfo-0000867414
COL ID 6FXVB
BDTFX ID 24619
INPN ID 96580
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eragrostis barrelieri subvar. pygmaea Eragrostis barrelieri Eragrostis insulatlantica Eragrostis panormitana Eragrostis barrelieri subsp. pygmaea Eragrostis barrelieri var. ambigua Eragrostis barrelieri var. pygmaea Eragrostis pooides var. barrielieri Eragrostis vulgaris subsp. barrelieri Eragrostis vulgaris var. barrelieri Eragrostis barrelieri subsp. ambigua