J. P. Norrlin. (1923). Adnotationes de Pilosellis Fennicis. I Notices on Pilosellae (Hieracia sp.) (hawkweed) in Finland. Acta Forestalia Fennica vol. 23 no. 8 article id 7107. https://doi.org/10.14214/aff.7107

Keywords: morphology; Hieracia; Pilosellae; Pilosellis; Pilosella officinarum; Hieracium pilosella

Abstract | View details | Full text in PDF | Author Info

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.

Norrlin, E-mail: jn@mm.unknown

Click this link to register to Silva Fennica.

If you are a registered user, log in to save your selected articles for later access.

Contents alert

Your selected articles
Send to email

Kilkki P., Päivinen R. (1986) Weibull function in the estimation of the basal .. Silva Fennica vol. 20 no. 2 article id 5270 (remove) | Edit comment

Laatikainen P., (1973) Milled peat and milled bark as substrate for Sco.. Silva Fennica vol. 7 no. 1 article id 4877 (remove) | Edit comment

Lippu J., (1994) Patterns of dry matter partitioning and 14C-phot.. Silva Fennica vol. 28 no. 3 article id 5529 (remove) | Edit comment

Heliövaara K., (1986) Occurrence of Petrova resinella (Lepidoptera, To.. Silva Fennica vol. 20 no. 2 article id 5264 (remove) | Edit comment

Päivänen J., (1973) The effect of thinning on the snow cover and soi.. Silva Fennica vol. 7 no. 2 article id 4881 (remove) | Edit comment

Leikola M., (1967) Observations on wind conditions in a managed Sco.. Silva Fennica vol. 1 no. 3 article id 4754 (remove) | Edit comment

Kurkela T., Nuorteva H. (1998) Short-needle disease of Scots pine: an abnormal .. Silva Fennica vol. 32 no. 1 article id 702 (remove) | Edit comment

Räsänen P. K., Hiltunen M. (1971) The effect of differences in Scots pine nursery .. Silva Fennica vol. 5 no. 3 article id 4847 (remove) | Edit comment

Lehtonen I., Kellomäki S. et al. (1976) Nutrient cycle in a Scots pine stand. II. Amount.. Silva Fennica vol. 10 no. 4 article id 4952 (remove) | Edit comment

Katainen H.-S., Kellomäki S. (1981) Effect of foliar application of dilute sulphuric.. Silva Fennica vol. 15 no. 3 article id 5123 (remove) | Edit comment

Cajander E. K., (1934) Observations in a storm damage area Acta Forestalia Fennica vol. 40 no. 10 article id 7287 (remove) | Edit comment

Koski V., (1980) On the variation of flowering and seed crop in m.. Silva Fennica vol. 14 no. 1 article id 5067 (remove) | Edit comment

Yli-Vakkuri P., Räsänen P. K. et al. (1968) Cold-storage and its effects on the field surviv.. Acta Forestalia Fennica vol. 0 no. 88 article id 7188 (remove) | Edit comment

Laurila R., (1989) Fibre properties in Pinus sylvestris pulpwood Silva Fennica vol. 23 no. 1 article id 5371 (remove) | Edit comment

Kuehne C., McLean J. P. et al. (2022) A stand-level growth and yield model for thinned.. Silva Fennica vol. 56 no. 1 article id 10627 (remove) | Edit comment

Kalela E. K., (1946) Collection of resin in Scots pine forests in the.. Acta Forestalia Fennica vol. 52 no. 3 article id 7381 (remove) | Edit comment

Follow @SilvaFennica