Genus Anagallis L.
Fam: Primulaceae Vent.
Genus: Anagallis L.
English Name: Pimpernel
Annual or biannual herbaceous plants. Stems erect, creeping or is lifted, branched at the base. Leaves opposite or successive, sessile or on the stems. Flowers correct with stems or sessile. Calyx on four or five shares split, shares lance, wedge. Corolla bell-shaped, greater, equal or less than the calyx. Filamentor naked or just fibrous. Ovary upper, single station. The bar with short headed stigma. Fruit box round, opening with a hemispherical flap. Seeds tthree ridged, dorsal-ventral flattened, surface verrucose.
Economic significance. Medicinal plants. Their decoction is used as a medicament in the kidney disease. Poison for small pets due to the glycoside cyclamin. Weeds.
Table for determining the species
1 Opposed leaves, the colors of 8-22 mm long handles .............................................................. 1. - A. arvensis L.
1* Leaves consistent. Flowers sessile or on 0.5 - 0.8 mm long stems ........................... 2. - A. minimus (L.) Krause
From „Флора на НР България”, том VIII, БАН, София, (1982)
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Anagallis is a genus of about 20–25 species of flowering plants in the familyPrimulaceae, commonly called pimpernel and perhaps best known for the scarlet pimpernel referred to in literature. The botanical name is from the Greek, ana, "again", and agallein, "to delight in", and refers to the opening and closing of the flowers in response to environmental conditions.
These are annual or perennial plants, growing in tufts on weedy and uncultivated areas. The stems are prostrate or decumbent. The leaves are opposite, rarely whorled, and sometimes with a few alternate leaves at the end of the stem. They are usually ovate in shape with a cordate base. Some of the species produce flowers of various colors. The flowers are radially symmetrical and have 5 sepals. The corolla consists of a short tube and 5 lobes. The tube may be so short that the lobes appear to be separate petals. They are usually solitary in the leaf axils, but sometimes are on short spikes at the end of the stem. Pimpernel flowers remain open only under direct sun-light. The stamens are opposite the corolla lobes. The staminal filaments have conspicuous hairs. The ovary is superior, globose, and circumscissile near the middle.
They were traditionally classified as members of the primrose family (Primulaceae), but a genetic and morphological study by Källersjö et al. showed that they belonged to the closely related family Myrsinaceae. In the APG III system, published in 2009, Primulaceae is expanded to include Myrsinaceae, thus Anagallis is back in Primulaceae again.
Another study by Ulrika Manns and Arne A. Anderberg (2005), based on molecularphylogeny, states that Anagallis in its present circumscription is paraphyletic and should also include in its clade the small genera Asterolinon and Pelletiera, as well as two Lysimachia species (Lysimachia nemorum and Lysimachia serpyllifolia).
From Wikipedia, the free encyclopedia
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References: „Флора на НР България”, том VIII, БАН, София, (1982), Wikipedia, the free encyclopedia
Distribution in Bulgaria: (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.
Anagallis arvensis L. - Blue-scarlet pimpernel, Red pimpernel, Red chickweed, Poorman's barometer, Poor man's weather-glass, Shepherd's weather glass or Shepherd's clock
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