Field Scabious is a garden escapee, introduced from Europe as an ornamental. Field scabious could be confused with Small scabious or Devil’s-bit scabious, both also members of the teasel family. FIELD SCABIOUS Knautia arvensis (Dipsacaceae) Height to 75cm. Quote. It usually grows 2 to 4 feet tall and has a woody, branched taproot. Field scabious (Knautia arvensis) Identification: Field scabious, also known as blue buttons, is a perennial forb in the Dipsacaceae (Teasel) family. In Minnesota it hasn't made much of an impact yet, but time will tell. (Field Scabious) Author & Year Title Source; Anon, 2017: Agromyzidae Newsletter No 3, August 2017 A single field scabious plant can produce around 2,000 seeds and the seeds can remain in the soil for a number of years. Many varieties of scabious set seed freely. Video. Perennial varieties can be propagated by division, and clumps should be divided every three-to four years in early spring. Knautia arvensis (L.) Coult. Link. FLOWERS are bluish violet and borne in heads, 3-4cm across, outer flowers larger than inner ones (Jun-Oct). Text. Filter by post type. Field Scabious < > Most popular. This species is a robust perennial producing clumps of large leaves, the lower ones tending to be unlobed while those higher up the stems are deeply lobed. Description. LEAVES comprise lobed, spoon-shaped basal ones in a rosette and less-divided stem leaves. Photo. Leaves and stems are covered in stiff hairs. Most popular Most recent. All posts. 4. It is a serious agricultural weed in some areas, noted as particularly aggressive in northwest British Columbia, where it has also been found invading high quality habitat. Audio. Field Scabious, Field scabiosa: Family: Dipsacaceae: USDA hardiness: 5-9: Known Hazards: None known: Habitats: Meadows, pastures, hedgebanks and grassy hills, usually on dry soils and especially on limestone[9, 17, 187]. Save seeds from some of your annual plants to sow in autumn. Chat. Etymology. Robust, hairy biennial or perennial of dry grassland. Ask. FRUITS are dry and papery. Devil’s-bit scabious is best separated from the other two by its dark, un-toothed, broad-lanceolate leaves. Field Scabious is closely related to Teasle and Devil’s-bit Scabious, all of which have distinctively coloured flowers in blue, bluish-lilac or bluish-violet. Grid View List View. Range: Europe, including Britain, north to latitude 69°, east to the Caucasus and W. Siberia. The common name 'scabious' comes from the herb's traditional usage as a folk medicine to treat scabies, an illness that causes a severe itching sensation. Small scabious as the name suggests is smaller, slimmer and less hairy and the flowers have five not four petal lobes.
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