Weed Science & Agronomy
INRA-Dijon
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Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon |
Bayer Code : heoeu
Synonym(s) of Sc. name:
Classification: Boraginaceae, Dicotyledonous
Common name: european turnsole
Synonym(s) of Common name:
Name per country: DE : Sonnenwende ; ES : heliotropo común ; FR : héliotrope d' Europe ; IT : erba porraia ; PT : erva-das-verrugas ; EN : european turnsole ;
Biological type: Annual
.
- Cotyledons lengthened spoon-shaped.
- Leaves entire, elliptic to ovate, entire-margined.
- Height: 10-50 cm. Plant hairy, greyish, with a principal developped root.
- Stem erect or spreading, lanate, very branched.
- Leaves green-whitish on both sides, ovate, stalked; secondary veins very marked, bent upward.
- Flowers white, without marked peduncle, in dense and lengthened cymes. Calyx hairy, 5 ovate lobes, lengthened and obtuse persistent around the ripe fruit.
- Fruit: circa 2 mm, dark-brown, ovate to pear-shaped, rarely hairy (mostly glabrous ), strongly tuberclate.
- Plant desiccative, resolutive and detergent. Presence of a toxic alkaloid in seeds and roots. Plant foetid.
- Biological type: Annual.
Ecological profile (click on flags):
Present
Present
Present
Present
