Pycnosorus
Sign in to savePycnosorus is a genus of six species of plants in the family Asteraceae. Commonly known as billy buttons or drumsticks, they are annual or perennial herbs or small shrubs with a cylindrical to spherical head of up to 200 daisy-like "flowers". Each "flower" is a pseudanthium consisting of between three and eight florets surrounded by bracts. The petals are joined to form a small tube and the florets with their surrounding bracts are yellow or golden-yellow.
Taxonomy · GBIF
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderAsterales
- FamilyAsteraceae
Observations304
Groupplantae
via GBIF · iNaturalist · CC0
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Asteraceae
- Image
- Pycnosorus globosus flowerhead1 (17796565360).jpg
Show 2 more facts
- P105
- genus
via Wikidata · CC0
Article
4 sectionsContents
- Description
- Taxonomy and naming
- Distribution and habitat
- References
Pycnosorus is a genus of six species of plants in the family Asteraceae. Commonly known as billy buttons or drumsticks, they are annual or perennial herbs or small shrubs with a cylindrical to spherical head of up to 200 daisy-like "flowers". Each "flower" is a pseudanthium consisting of between three and eight florets surrounded by bracts. The petals are joined to form a small tube and the florets with their surrounding bracts are yellow or golden-yellow.
==Description== Plants in the genus Pycnosorus are annual or perennial herbs, with leaves decreasing in size up the stem, those at the base withering first. The flowers are arranged in oval to more or less spherical heads of 40 to 200 flower-like partial heads. Each partial head consists of three to eight small flower-like "florets". The florets and the bracts which surround them are yellow or golden in colour. Each flower has five petals joined to form a tube. After pollination the flowers become silky achenes with a ring of feathery bristles.