Articles containing the keyword 'Hieracium'
Category : Article
The article begins on the page 117/122 of the PDF file.
There are many forms of hawkweed in Finland, and they are hard to define, especially for an unexperienced examiner. The phenotype of the plant varies depending its site. The article presents the most typical forms ans subspecies for different regions of Finland.
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Norrlin,
E-mail:
jn@mm.unknown
The article begins on the page 105/122 of the PDF file.
The article deals with the morphology of Hieracia sp. and their research, especially with Pilosella officinarum, also Hieracium pilosella. The article gives an overview of the most common, wide spread or otherwise remarkable forms of the genus of the Pilosella and reports, starting from the smallest areas, about the formula, distribution, abundance and occurrence of them.
The great amount of forms, their high variability and the tendency to hybridize make the definition of the varieties difficult. However, the number of varieties in Finland is estimated to be between 150 and 200. The phenotype of the plant is also to some extent dependent on the site. The numerous forms that belong to the group of Piloselloideae can be divided in to groups: main species and intermediate forms.
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Norrlin,
E-mail:
jn@mm.unknown
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