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Cylindrocopturus adspersus, the sunflower stem weevil, is a species of true weevil in the beetle family Curculionidae. [ 1 ] [ 2 ] It is found in North America, [ 1 ] where the larvae tunnel in the stems of wild and cultivated sunflower plants.
Illustration of Vogel's formula of the pattern of sunflower florets for n from 1 to 500. In the SVG, hover over a floret to see its statistics and colour florets of the same colour. Width: 100%: Height: 100%
Type Symbol Year and references Kansas state seal: Great Seal of the State of Kansas: 1861 [2]: Kansas state flower and floral emblem: Wild native sunflower ()1903 [3] [4]: Kansas state banner
In the United States, the sunflower stem weevil (C. adspersus) is the most common host species, but other larvae parasitised include the red sunflower seed weevil (Smicronyx fulvus), the boll weevil (Anthonomus grandis), the plum curculio (Conotrachelus nenuphar), [2] and the potato stalk borer (Trichobaris trinotata). [4]
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Aquilegia coerulea is a herbaceous plant with flowering stems that may be 15–80 centimeters (6–31 in) when fully grown. [3] Its leaves are on stems that are always shorter than the flowering stems, just 9–37 cm (4–15 in) and are compound leaves that usually have three leaflets on three components (), but occasionally may be simpler with just three leaflets or more complex (). [4]
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves , flowers and fruits , transports water and dissolved substances between the roots and the shoots in the xylem and phloem , engages in photosynthesis, stores nutrients, and produces new living tissue. [ 1 ]