Dittrichia viscosa is a PERENNIAL growing to m (1ft 8in). It is in flower from September to October. The species is hermaphrodite (has both male and female . Biology of Dittrichia viscosa, a Mediterranean ruderal plant: a review. Biología de Dittrichia viscosa, una planta ruderal del Mediterráneo: revisión. Parolin P, M. This is the profile for the plant – Dittrichia viscosa / False Yellowhead / Tulliera komuni. Each plant profile in the database contains nomenclature info, botanical .
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These flower-heads mm across are surrounded by four or five rows i. Synonymy Erigeron viscosus L. Each flower is a capitulum consisting of a light green involucre made up by 4 to 5 rows of phyllaries holding a group of about tiny ray and disk florets sitting on a common flat receptacle.
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The achene is 2mm and the pappus is mm long and made up of about 15 rigid bristles. Possess hair that bear glands or swellings at their tip. Originally, the species was found mainly in dry riverbeds and abandoned fields up to a m feet elevation. Grows dittrichiw in a sunny position in ordinary garden soil. It is known to release substances that inhibit the germination of nearby plants, and to be toxic to stock.
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Locations in Malta or Gozo where you have seen this plant. Try to be as concise as possible. The plant is very conspicuous during the flowering time of late September and October thanks to the several hundreds of flowers measuring around 20mm across that it produce in dense panicles.
A yellow dye is obtained from the roots[46, 61]. This is composed of a group of seeds achenes which have a bristly pappus at the top. They are stalkless i. This is a QR code short for Quick Response which gives fast-track access to our website pages. For these reasons you are kindly requested to first fill and submit a quotation form by which you will get confirmation of the purchase, availability and charges.
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. It is viiscosa flower from September to October.
Wikimedia Commons has media related to Dittrichia viscosa. Phyllaries of upper rows are more elongated than the lower ones. Seed – we have no details on this species but suggest sowing it in spring in a greenhouse and only just covering the seed.
For a list of references used on this page please go here. Ray petals around disc florets: Kindly consider support this website by giving a small donation.
Dittrichia viscosa – Wikipedia
Please note that all images are copyright of dittrixhia author. It is not certain how false yellowhead was introduced to Australia, but it may have escaped from cultivation as a garden ornamental. Retrieved 18 January Prices reasonable and rated differently according size and resolution. You can unsubscribe at anytime.
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The younger stems and leaves are covered with sticky i. The basal stem becomes woody, dark brown and thick. Each flower head is held in a green, cylindrical to semi-spherical involucre and consists of about 14 yellow, strap-like spreading, non-overlapping petals ray florets with numerous about 36 disc florets at the centre. Cupularia viscosa Full list of synonyms: