11/24/2023 0 Comments Spiny fruit buttercup weed![]() ![]() It grows to 5–20 cm (rarely 30 cm) in height. A herbaceous flowering plant native to Europe and Asia. Lamium purpureum - Common Name, The red deadnettle, purple deadnettle, purple archangel, or velikdenche. It was a common cure for warts when I was a child in New Zealand in the 1950s. A pharmaceutical-grade ingenol mebutate gel has approval from the US Food and Drug Administration for treatment of actinic keratosis, a type of skin cancer caused by exposure to sunshine. The active ingredient in the sap is a diterpene ester called ingenol mebutate. The plant's sap is toxic to rapidly-replicating human tissue, and has long been used as a traditional remedy for common skin lesions, including cancer and warts. The glands, typical of the Euphorbiaceae, are kidney-shaped with long thin horns. It has green flowers in three-rayed umbels. The leaves are oval-acute, 1–3 cm long, with a smooth margin. ![]() ![]() It is an annual plant growing to between 5–30 cm tall (most plants growing as weeds of cultivation tend towards the smaller end), with smooth hairless stems. Outside of its native range it is very widely naturalised and often invasive, including in Australia, New Zealand, North America, and other countries in temperate and sub-tropical regions. A species of Euphorbia, native to most of Europe, northern Africa, and western Asia, where it typically grows in cultivated arable land, gardens, and other disturbed land. Photographs taken in Whangarei show both Blue Coastal Pimpernel, (below) and Scarlet Pimpernel (Small Photo).īOTANICAL NAME: Euphorbia peplus: Common Names - petty spurge, radium weed, cancer weed, or milkweed. Pimpernel is common throughout New Zealand. They were formerly classified as members of the primrose family ( Primulaceae ), but a genetic and morphological study has shown that they belong to the closely related family Myrsinaceae. Pimpernel flowers remain open only under direct sun-light. The two species occurring in Northland profuce Orange or red flowers. They are usually solitary in the leaf axils, but sometimes are on short spikes at the end of the stem. They are usually ovate in shape with a cordate base. The botanical name is from the Greek language, agallein is to delight in, and refers to the opening and closing of the flowers in response to environmental conditions. Prostrate in habit, they are annual or perennial plants, that grow in tufts on weedy and uncultivated areas. The leaves are opposite, rarely whorled, and sometimes with a few alternate leaves at the end of the stem. A genus of about 20–25 species of flowering plants in the family Myrsinaceae, commonly called pimpernel and perhaps best known for the scarlet pimpernel referred to in literature. BOTANICAL NAME: Anagallis arvensis: Common Name - Pimpernel. ![]()
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