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Milkweed yellows is an infectious disease of milkweeds caused by the milkweed yellows phytoplasma. Other diseases caused by pathogens in subgroup 16SrIII-F include Vaccinium witches' broom, potato purple top, and a greening disorder of Trillium grandiflorum and other Trillium species. [4] [5]
Spores of O. elektroscirrha are ingested by the caterpillars when they eat their egg chorion (shell) after they hatch, and when they feed from infected milkweed. Once the parasite has entered the host's gut , the spores open and emerging sporozoites penetrate the gut wall and migrate to the hypoderm (the layer of cells that secrete the larva's ...
The fine, silky fluff attached to milkweed seeds, which allows them to be distributed long distances on the wind, is known as floss. Milkweed floss is incredibly difficult to spin due to how short and smooth the filaments are, but blending it with as little as 25% wool or other fiber can produce workable yarn. [29]
Asclepias syriaca, commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant. [ 2 ] [ 3 ] It is native to southern Canada and much of the United States east of the Rocky Mountains, excluding the drier parts of the prairies. [ 4 ]
Oncopeltus fasciatus, known as the large milkweed bug, is a medium-sized hemipteran (true bug) of the family Lygaeidae. [2] It is distributed throughout North America , from Central America through Mexico and the Caribbean to southern areas in Canada . [ 2 ]
Asclepias curassavica, commonly known as tropical milkweed, [3] is a flowering plant species of the milkweed genus, Asclepias. [4] It is native to the American tropics [ 5 ] and has a pantropical distribution as an introduced species .
Calotropis procera. Calotropis gigantea and C. procera are the two most common species in the genus. Both plants can attain an average height of 8 to 10 ft (2.4 to 3.0 m) although they can occasionally become as tall as 14 to 16 ft (4.3 to 4.9 m).