Hornungia petraea (also Hutchinsia petraea) is a flowering plant in the family Brassicaceae.
It is native to North and South America, Eurasia, Africa, Macaronesia.
General description:- Small annuals.
Stems:- 2-15 cm, slender.
Leaves:- All composed of more than three leaflets (pinnate); basal leaves arrangedin a rosette (rosulate), stalked (petiolate), with 3-15 or more ovate, lanceolate orobovate, acute segments; cauline leaves few, stalkless (sessile).
Flowers:- Petals 0·5-1 mm, as long as or slightly longer than the sepals.
Fruit:- Silicula 2-2·5(-3) mm, narrowly elliptical to ovate or obovate; valvescompressed, with a distinct median vein.
Bis 15 cm hoch, StĂ€ngel dĂŒnn, oft verzweigt, mit kaum 0,1 mm langen Sternhaaren. BlĂ€tter der grundstĂ€ndigen Rosette und des unteren StĂ€ngels gestielt, obere sitzend, bis auf die Mittelrippe fiederteilig, jederseits mit 3-6 ovalen, bis 5 mm langen Abschnitten und +/- gleich grossem Endabschnitt, kahl. KelchblĂ€tter 0,5-0,8 mm, KronblĂ€tter weiss, 0,7-1 mm lang, am Grund nur wenig verschmĂ€lert. FrĂŒchte eiförmig, 2-2,5 mm lang, Stiele waagrecht-abstehend. Fruchtstand verlĂ€ngert.Small (3-15 cm tall) short pubescent plant. Basal leaves in a rosette, pinnately dissected. The flowers are very small. The pod is oval, its valves are keeled, wingless. Blossoms and bears fruit in April-May. Grows in rocky and rocky places.
This plant is useful.
How to get rid of:
Mulch the aisles. A great option is to spread the mowed grass left, for example, from the lawn, between the cultivated plants. But it must be laid in a thick layer of at least 5 cm - weeds cannot germinate through such mulch.
