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The leaves of the pale swallowwort are larger when they are closer to the stem and decrease in size as they move away from the stem. [6] They are in the shape of an ellipse or an oval and contain smooth margins and major veins underneath. [6] The glossy, dark green leaves grow opposite on the stem and are ovate to elliptical.
Vincetoxicum nigrum is a perennial, herbaceous vine bearing ovate leaves with pointed tips. The leaves are 3–4 inches (7.6–10.2 cm) long, and 2–3 inches (5.1–7.6 cm) wide, occurring in pairs on the stem. The flowers have five petals, and are star-shaped with white hairs. The flowers range in color from dark purple to black.
Yellowish-white flower spikes appear in August and September, making now the best time of year to identify and report occurrences of this invasive species. Open spaces with not much native ...
Kudzu is an invasive plant species in the United States, introduced from Asia with devastating environmental consequences, [1] earning it the nickname "the vine that ate the South". It has been spreading rapidly in the Southern United States , "easily outpacing the use of herbicide, spraying, and mowing, as well increasing the costs of these ...
Antigonon leptopus is a species of perennial vine in the buckwheat family commonly known as coral vine or queen's wreath.This clambering vine is characterized by showy, usually pink flowers that can bloom throughout the year and large, heart-shaped leaves.
The leaves are alternate, large, 60–120 cm long, and double pinnate. The flowers are produced in large umbels in late summer, each flower small and white. The fruit is a small black drupe. Aralia elata is closely related to the American species Aralia spinosa, with which it is easily confused.
Bryonia alba (also known as white bryony or wild hop) is a vigorous vine in the family Cucurbitaceae, found in Europe and Northern Iran. It has a growth habit similar to kudzu , which gives it a highly destructive potential outside its native range as a noxious weed.
Burdock (Arctium spp.) - was introduced to Europe, [4] leaves, flowers and roots are edible. [5] Dandelion (Taraxacum spp.) [6] Evergreen blackberry (Rubus laciniatus), invasive in the United States, Canada and Australia. The fruit is edible. [7] [8] Fennel (Foeniculum vulgare), invasive in the United States and Australia. The bulb, foliage ...