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E. trichocalyx, being a slower-growing perennial, often has leaves that show damage from previous years. Although both plants can grow to be as tall as a person, E. trichocalyx tends to a much smaller stature at the higher elevations; rare, large plants at these elevations tend to be old and woody, and may have a large, tree-like trunk at their ...
This root damage stunts the plant's growth and ability to create seeds. If several larvae inhabit the same root, the plant can be killed. The loosestrife flower weevil Nanophyes marmoratus is a tiny weevil which lays a single egg in each flower. When the larvae emerge they eat the flowers' ovaries, and the plant is unable to create seeds.
Antirrhinum is a genus of plants in the Plantaginaceae family, commonly known as dragon flowers or snapdragons because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They are also sometimes called toadflax [1] or dog flower. [2]
The small (6 mm) flowers are densely packed in whorls at the nodes, widely separated, above pairs of leaf-like bracts. The calyx is a ribbed tube about 3 mm long, with five triangular teeth, the lower two being narrower and slightly longer than the upper three; it is hairy both on the inside and the outside.
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In 1773, Scutellaria lateriflora became a common treatment in North America for the hysteria and hydrophobia caused by rabies. [16] Skullcap products have been analyzed, with some adulterated by Teucrium canadense or T. chamaedrys, also known as germander, which contains potentially hepatotoxic diterpenes. [10]
Eupatorium capillifolium, or dog fennel (also written "dogfennel"), is a North American perennial herbaceous plant in the family Asteraceae, native to the eastern and south-central United States. [3] It is generally between 50 cm and 2 meters tall with several stems that fork from a substantial base. [ 4 ]
Perennials are plants that return for many years. They typically have a short bloom time, ranging from a week or two to a few months. But by mixing and matching them with annuals, which live only ...
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