Arctotheca calendula

Unité de Malherbologie & Agronomie
Weed Science & Agronomy
INRA-Dijon

Bayer Code : aroca

Synonym(s) of Sc. name: Artoctis calendula L., Cryptostemma calendulacea (Hill) R. Br.

Classification: Compositae, Dicotyledonous

Common name: plain treasure flower

Synonym(s) of Common name:

Name per country: FR : artotheque souci ; IT : artoteca calendula ; PT : erva-gorda ; EN : plain treasure flower (GB), EN : Cape weed (AUS.) ;

Biological type: Annual

Seedling:

- Cotyledons oblong -spatulate.

- Leaves opposite, elliptical-lanceolate or lanceolate, white-tomentose on underside.

Adult plant:

- Height : upto 40 cm.

- Stem puberulent or tomentose, simple or prostrate.

- Basal leaves rosette, the rest alternate all pubescent on the upper surface and white-tomentose on the underside,lyrate- pinnatipartite.

- Flowers in capitulum, ligules pale yellow above, purple beneath. Inner florets greenish-black.

- Fruits densely, lanate

- Biological type: annual.

Ecological profile (click on flags): Present