flower_perianth_fusion

Explore the data for this trait in the portal

• Label: Fusion of perianth
• Entity URI: https://w3id.org/APD/traits/trait_0012462
• Type: numeric
• Definition: A floral organ morphology trait [TO:0000862] which is the proportion [PATO:0001470] of the length [PATO:0000122] of perianth [PO:0009058] parts (sepals [PO:0009031], petals [PO:0009032], and tepals [PO:0009033]) that are fused [NCIT:C124537] together at anthesis [PO:0009068].;Fusion of perianth organs (congenital or postgenital) at anthesis, recorded on a continuous scale, from 0 (free parts) to 1 (parts fused along their entire length).
• Additional comments: Partial fusion was recorded using an approximate number between these two extremes (e.g., 0.1 corresponds to basal fusion, 0.5 to fusion along half of the length of perianth parts). In case of multiple whorls, this trait records within-whorl fusion. For example, if organs within each whorl are fused along their entire length, a trait value of 1 is recorded. In cases where organs of two whorls are fused into a common tubular structure, such as frequently observed in monocots (e.g., Polygonatum), the perianth is considered to be fused. If the two (or more) whorls differed in their extent of fusion, a range of trait values may be recorded. For example, if the calyx is only basally fused, up to 10% of its length, but the corolla is entirely fused, a range of 0.1 to 1 is recorded as the trait value for the species. Definition derived from Schoenenberger et al. (2020) for their character '204. Fusion of perianth (C1)'
• units: {dimensionless}
• allowable range: 0 - 1 {dimensionless}

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0012462) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 1,714 records. This includes:

• data for 944 species.
• data for 194 families.
• data from 2 datasets (see the portal Citations tab for a list of sources)