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Linaria purpurea or purple toadflax is a purple-flowered plant native to Italy, part of the plantain family (Plantaginaceae). It is sometimes planted in gardens and is also an introduced weed in North America and other parts of Europe.
Linaria is a genus of almost 200 species of flowering plants, one of several related groups commonly called toadflax. They are annuals and herbaceous perennials , and the largest genus in the Antirrhineae tribe of the plantain family Plantaginaceae .
Nuttallanthus was until the 1980s [1] included in a wider circumscription of the genus Linaria, a genus now considered restricted to the Old World. The members of this genus are known in English as toadflax, a name shared with several other related genera. The scientific name honors Thomas Nuttall.
The Antirrhineae include about 30 genera with roughly 320 species, of which 150 are in genus Linaria.The type genus is Antirrhinum L. [4] [5]. Antirrhineae are probably most closely related to the turtlehead tribe and/or a large and badly resolved core group of their family including plants as diverse as water-starworts (Callitriche), foxgloves (Digitalis), and speedwell (Veronica).
Linaria repens is a short-statured herb (maximum 80 cm), spreading by rhizomes. Upper flower petals are pale with purple veins. Lower petals are pale purple-white, usually with a yellow centre. Its appearance is similar to Linaria purpurea, and the flowers closely resemble Cymbalaria muralis so care must be taken in identification. [2] [3]
Linaria maroccana is a species of flowering plant in the plantain family known by the common names Moroccan toadflax and annual toadflax. [1] It is native to Morocco, [2] [3] but it can be found elsewhere growing wild as an introduced species, such as California. [4] It is a readily available ornamental plant for the flower garden. [3]