Annual. Culms tufted, erect or decumbent, slender to moderately robust, 20–120 cm tall, 3–5-noded. Leaf blades flat, thin, 10–25 cm × 4–10 mm, smooth or scabridulous on abaxial surface, margins scabrid, young blades rolled; auricles present or absent; ligule 0.5–2.5 mm, obtuse to truncate. Raceme stiff, straight, 10–30 cm; rachis thick, smooth or scabridulous, spikelets about their own length apart. Spikelets turgid, 0.8–2.5 cm, florets 4–10, rachilla internodes 1–1.5 mm, smooth, glabrous; glume linear-oblong, rigid, as long as spikelet, often exceeding florets, 5–9-veined, margins narrowly membranous, apex obtuse; lemmas elliptic to ovate, turgid at maturity, 5.2–8.5 mm, apex obtuse; awn usually present, stiff, scabrid; palea ciliolate along keels. Caryopsis very plump, length 2–3 times width, 4–7 mm. Fl. and fr. May–Aug. 2n = 14.

Source: [
• 7
]. 

3. Lolium temulentum L., Sp. Pl. 83 (1753). Lectotipo (designado por Loos y Jarvis, 1992): Herb. Burser I: 113 (UPS).

Por R.W. Pohl y G. Davidse.

Anuales cespitosas. Tallos 20-120 cm. Hojas glabras; aurículas ausentes o hasta 4 mm; lígula 0.5-3 mm; láminas 9-33 cm x 4-10 mm, enrolladas cuando jovenes. Espigas 5-40 cm, rígidas. Espiguillas 8-28 mm; gluma (5.5-)7-30 mm, 3/4-1 1/2 la longitud de la espiguilla, 3-11-nervia; flósculos bisexuales 2-10; flósculos estériles ausentes o hasta 4; lemas 5-8.5 mm, 5-7-nervias, túrgidas cuando maduras, generalmente con una arista hasta 17(-23) mm; anteras (1.8-)2-3.2(-4) mm. 2n=14. Arvenses en cultivos de grano. G (Standley 60916, US); P (D'Arcy et al. 12583 en parte, MO). 1800-2800 m. (Nativa de Eurasia; introducida y naturalizada en climas templados del mundo.)

Source: [
• 8
• 1
]. 

"Annual; culms solitary or few together, 4–10 dm, scaberulous; lvs usually glabrous beneath, scabrous above, 3–10 mm wide; spike 1–2(–4) dm with scabrous margins; spikelets 4–8-fld; glume firm, straight, strongly veined, equaling or surpassing the uppermost lemma, (12–)15–25 mm; lemmas obtuse, with an awn to 17 mm, or sometimes awnless, the lower lemmas in the spikelet 5–8.5 mm; paleas shorter than the lemmas, grain 2–3 times as long as thick; 2n=14. Probably native to the Mediterranean region, now widespread as a weed and occasionally found throughout most of our range."

Source: [
• 9
]. 

Spikes 10-30 cm. long, erect, rigid, pale-green; rhachis stout, somewhat waved, dorsally scaberulous or smooth.

Source: [
• 5
]. 

Leaf-laminae 6-30(-40) x 0·3-1·3 cm., linear, tapering to a fine point, with 2 narrow auricles at the base, usually expanded, firm, scaberulous or smooth except for the margins.

Source: [
• 5
]. 

Leaf-sheaths prominently striate, rather tight, dorsally rounded, smooth or scaberulous, glabrous; Ligule c. 2 mm. long.

Source: [
• 5
]. 

Culms up to 90 cm. tall, 2-4-noded, solitary or tufted, somewhat stout, erect or geniculately ascending, glabrous, smooth or scabrous towards the spike.

Source: [
• 5
]. 

Anthers c. 2·5 mm. long, linear.

Source: [
• 5
]. 

Lemmas 6-8 mm. long, 5-9-nerved, muticous or awned, dorsally rounded, elliptic to ovate, somewhat rigid, smooth; awn (if present) up to 20 mm. long, straight, scabrous.

Source: [
• 5
]. 

Superior glume 7-9-nerved, as long as or longer than the rest of the spikelet, narrowly oblong, obtuse, rigid, smooth or asperulous.

Source: [
• 5
]. 

Spikelets 12-25 x 4-6 mm., 4-10-flowered, elliptic-oblong, oblong or obovate-oblong in outline, moderately compressed about their own length or slightly more apart.

Source: [
• 5
]. 

A rather robust annual.

Source: [
• 5
]. 

Caryopsis c. 7 mm. long, elliptic-oblong in outline, tightly enclosed by the lemma and palea.

Source: [
• 5
]. 

Spikelets oblong, 12–26 mm. long, 4–10-flowered; upper glume usually reaching to or exceeding uppermost lemma, rigid, 7–9-nerved, obtuse; lemmas elliptic to ovate, 6–8 mm. long, smooth, obtuse, awned or awnless.

Source: [
• 6
]. 

Spikes erect, 10–30 cm. long and 5–12 mm. wide, rigid, green, the spikelets about their own length or more apart.

Source: [
• 6
]. 

Stiff annual.

Source: [
• 6
]. 

Leaf-blades 6–40 cm. long and 3–13 mm. wide, flat, with short spreading auricles at the base.

Source: [
• 6
]. 

Culms 30–90 cm. high, tufted or solitary, erect or geniculate at the base, slender to moderately stout.

Source: [
• 6
]. 

Annual to 1 m tall. Leaves linear; ligule an unfringed membrane. Inflorescence a simple, true spike; 100-300 mm long. Spikelets 8-28 mm long, laterally compressed, glabrous, awnless, sunk and lying edgeways in partial cavities on main axis, separated by ± own length, one edge against rhachis, green, many-flowered; glumes usually 1, with 2 only in terminal spikelets, as long as spikelet; lemmas rounded, swollen at maturity, awnless or with awn up to 20 mm long.

Source: [
• 10
]. 

Robust annual, culms solitary or tufted, up to 0.9 m high. Leaf blades 150-300 mm long, 3-7 mm wide. Spikelets 8-28 mm long, 3-8 mm wide. Glumes ascending or spreading, not concealing spikelets, 3/4 to 1 1/2 times spikelet length; lemmas elliptical to ovate, very turgid at maturity, awn absent or to 20 mm long. Mature caryopsis 2-3 times as long as wide.

Source: [
• 11
]. 

Annual to 1 m. Leaves linear. Spikelets in a simple spike, green, 8-28 mm long, lemmas swollen at maturity.

Source: [
• 12
]. 

Annual; up to 0.9 m high; robust. Culms solitary or tufted. Leaf blades 150-300 x 3-7 mm. Flowers: panicle a single; flat spike; spikelets 8-28 x 3-8 mm; glumes ascending or spreading; not concealing spikelets; 3/4-1 and1/2 x spikelet length; lemmas elliptical to ovate; very turgid at maturity; awn absent or up to 20 mm long; mature caryopsis 2-3 x as long as wide.

Source: [
• 13
]. 

Erva

Disturbed areas.

Source: [
• 10
]. 

Usually in cultivated or fallow lands, gardens or other disturbed areas, often associated with wheat.

Source: [
• 11
]. 

Disturbed areas.

Source: [
• 12
]. 

Dry Grassland. Cultivated or fallow lands; gardens or other disturbed areas; often associated with wheat.

Source: [
• 13
]. 

Terrícola

Widespread European weed.

Source: [
• 10
]. 

Native to warm temperate countries.

Source: [
• 11
]. 

European weed.

Source: [
• 12
]. 

Native to warm temperate countries.

Source: [
• 13
].