Annual. Culms solitary or tufted, erect, 40–180 cm tall, unbranched. Leaf sheaths usually glabrous; leaf blades 15–30 cm, 4–10 mm wide, glabrous, margins sometimes scaberulous; ligule 3–6 mm. Panicle loose and open or contracted, 20–40 cm, nodding; branches spreading or contracted. Spikelets 2–3 cm, florets 2(or 3); rachilla ± glabrous, straight, not disarticulating or fracturing irregularly at maturity, florets lacking a basal bearded callus, internodes short, less than 0.5 mm; glumes lanceolate, subequal, as long as spikelet, 7–9-veined; lemmas 1.2–2.5 cm, leathery in lower half, herbaceous and distinctly veined above, glabrous or nearly so, apex minutely and irregularly 2–4-denticulate; awn 2.5–3.5 cm, weakly geniculate or rudimentary or absent. Grain adherent to lemma and palea at maturity. 2n = 42. 2. Avena sativa L., Sp. Pl. 79 (1753). Lectotipo (designado por Baum, 1974): Europa, Herb. Cliff. 25, Avena 1 (BM). N.v.: Avena. Por R.W. Pohl. Tallos 40-140(-200) cm. Lígula 3-5 mm; láminas hasta 45 cm x 3-15(-20) mm. Panícula 10-25(-40) cm. Espiguillas 35-45 mm; flósculos 2-3; glumas 7-9-nervias; lemas 12-25 mm, glabras excepto por una barba corta sobre el callo, el ápice emarginado o con dientes muy cortos, la arista ausente o desarrollada pero no geniculada o torcida en el flósculo inferior, muy reducida o ausente en los otros; raquilla no desarticulándose o muy tardía por una fractura en línea recta; páleas 5/6 la longitud de las lemas. 2n=42. Cultivadas. Ch (Breedlove 34851, MO); G (Standley 82608, F); H (Molina R. y Molina 15946, F); CR (Pohl y Davidse 11704, MO). 800-2400 m. (Nativa de Medio Oriente; ampliamente cultivada en climas templados.) Plantas hasta ca. 60 cm. Hojas con lígula 3–5 mm; lámina 11–45 cm × 3–18 mm, glabra o pubescente.Infl. 10–35 cm. Espiguillas 18–45 mm; glumas 2–2.5 cm; lemas 12–27 mm, glabras o glabradas, sin arista ocon una arista hasta ca. 3 cm, no torcida. Much like no. 1 [Avena fatua L.], and hybridizing with it; herbage glabrous to scabrous; spikelets 2(3)-fld, the rachilla glabrous or only sparsely hirsute, not readily disarticulating; lemmas glabrous to sometimes scabrous, 3–7-veined, the callus naked or only sparsely bearded; awns, when present, (15–)22–35 mm, then only on the first lemma, not geniculate; 2n=42. European cultigen derived from no. 1, cult. throughout our range and often adventive in disturbed sites, but probably not persistent. 60–150 cm hoch. Blätter 5–12 mm breit. Blütenstand eine lockere Rispe. Ährchen meist über 2 cm lang, 2blütig, nach dem Blühen hängend, bei Reife nicht zerfallend. Die beiden ± gleich grossen Hüllspelzen schliessen die Blüten vollständig ein. Like A. byzantina but awn with a distinct column, sometimes awnless. Annual; up to 1.5 m high; solitary or loosely tufted. Leaf blades 100-400 x 3-9 mm. Flowers: panicle open; spikelets 17-35 mm long; lemmas sparsely hairy or glabrous at base; apex emarginate; central awn with a distinct column; almost straight; sometimes absent. Annual, culms solitary or loosely tufted, up to 1.5 m high. Leaf blades 100-400 mm long, 3-9 mm wide. Spikelets 17-35 mm long; lemma sparsely hairy or glabrous, apices emarginate; awn with a distinct column, almost straight, sometimes absent. 7. Wegränder, Schuttplätze, kultiviert und verwildert, kollin-montan. CH. Widespread in disturbed areas. Waste places, disturbed areas, roadsides. Dry Grassland. Waste places; disturbed areas; roadsides. Native to Europe. Cultivated cereal introduced from Europe. Native to Europe. 2. Avena sativa L., Sp. Pl. 79 (1753). Lectotipo (designado por Baum, 1974): Europa, Herb. Cliff. 25, Avena 1 (BM). N.v.: Avena. Por R.W. Pohl. Tallos 40-140(-200) cm. Lígula 3-5 mm; láminas hasta 45 cm x 3-15(-20) mm. Panícula 10-25(-40) cm. Espiguillas 35-45 mm; flósculos 2-3; glumas 7-9-nervias; lemas 12-25 mm, glabras excepto por una barba corta sobre el callo, el ápice emarginado o con dientes muy cortos, la arista ausente o desarrollada pero no geniculada o torcida en el flósculo inferior, muy reducida o ausente en los otros; raquilla no desarticulándose o muy tardía por una fractura en línea recta; páleas 5/6 la longitud de las lemas. 2n=42. Cultivadas. Ch (Breedlove 34851, MO); G (Standley 82608, F); H (Molina R. y Molina 15946, F); CR (Pohl y Davidse 11704, MO). 800-2400 m. (Nativa de Medio Oriente; ampliamente cultivada en climas templados.) Plantas hasta ca. 60 cm. Hojas con lígula 3–5 mm; lámina 11–45 cm × 3–18 mm, glabra o pubescente.Infl. 10–35 cm. Espiguillas 18–45 mm; glumas 2–2.5 cm; lemas 12–27 mm, glabras o glabradas, sin arista ocon una arista hasta ca. 3 cm, no torcida. Annual. Culms solitary or tufted, erect, 40–180 cm tall, unbranched. Leaf sheaths usually glabrous; leaf blades 15–30 cm, 4–10 mm wide, glabrous, margins sometimes scaberulous; ligule 3–6 mm. Panicle loose and open or contracted, 20–40 cm, nodding; branches spreading or contracted. Spikelets 2–3 cm, florets 2(or 3); rachilla ± glabrous, straight, not disarticulating or fracturing irregularly at maturity, florets lacking a basal bearded callus, internodes short, less than 0.5 mm; glumes lanceolate, subequal, as long as spikelet, 7–9-veined; lemmas 1.2–2.5 cm, leathery in lower half, herbaceous and distinctly veined above, glabrous or nearly so, apex minutely and irregularly 2–4-denticulate; awn 2.5–3.5 cm, weakly geniculate or rudimentary or absent. Grain adherent to lemma and palea at maturity. 2n = 42. 60–150 cm hoch. Blätter 5–12 mm breit. Blütenstand eine lockere Rispe. Ährchen meist über 2 cm lang, 2blütig, nach dem Blühen hängend, bei Reife nicht zerfallend. Die beiden ± gleich grossen Hüllspelzen schliessen die Blüten vollständig ein. 7. Wegränder, Schuttplätze, kultiviert und verwildert, kollin-montan. CH. Much like no. 1 [Avena fatua L.], and hybridizing with it; herbage glabrous to scabrous; spikelets 2(3)-fld, the rachilla glabrous or only sparsely hirsute, not readily disarticulating; lemmas glabrous to sometimes scabrous, 3–7-veined, the callus naked or only sparsely bearded; awns, when present, (15–)22–35 mm, then only on the first lemma, not geniculate; 2n=42. European cultigen derived from no. 1, cult. throughout our range and often adventive in disturbed sites, but probably not persistent. Like A. byzantina but awn with a distinct column, sometimes awnless. Annual; up to 1.5 m high; solitary or loosely tufted. Leaf blades 100-400 x 3-9 mm. Flowers: panicle open; spikelets 17-35 mm long; lemmas sparsely hairy or glabrous at base; apex emarginate; central awn with a distinct column; almost straight; sometimes absent. Annual, culms solitary or loosely tufted, up to 1.5 m high. Leaf blades 100-400 mm long, 3-9 mm wide. Spikelets 17-35 mm long; lemma sparsely hairy or glabrous, apices emarginate; awn with a distinct column, almost straight, sometimes absent. Annual; up to 1.5 m high; solitary or loosely tufted. Leaf blades 100-400 x 3-9 mm. Flowers: panicle open; spikelets 17-35 mm long; lemmas sparsely hairy or glabrous at base; apex emarginate; central awn with a distinct column; almost straight; sometimes absent. Annual, culms solitary or loosely tufted, up to 1.5 m high. Leaf blades 100-400 mm long, 3-9 mm wide. Spikelets 17-35 mm long; lemma sparsely hairy or glabrous, apices emarginate; awn with a distinct column, almost straight, sometimes absent. Widespread in disturbed areas. Waste places, disturbed areas, roadsides. Dry Grassland. Waste places; disturbed areas; roadsides. Waste places, disturbed areas, roadsides. Dry Grassland. Waste places; disturbed areas; roadsides. Native to Europe. Cultivated cereal introduced from Europe. Native to Europe. Cultivated cereal introduced from Europe. Native to Europe.General Information
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Morphology
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Ecology
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Distribution
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Flora Mesoamericana
General InformationManual de Plantas de Costa Rica
General InformationFlora of China @ efloras.org
General InformationFlora Helvetica – Illustrierte Flora der Schweiz
MorphologyManual of Vascular Plants of Northeastern US and Canada
General Informatione-Flora of South Africa
Morphology
| Name | Language | Country | |
|---|---|---|---|
| Avoine cultivée | French | CH |
|
| Avaina cultivada | Raeto-Romance | CH |
|
| Saat-Hafer | German | CH |
|
| Avena comune, Biada | Italian | CH |
|
| AVENA. |
|
