flower_filament

Label: Filament presence and shape
Entity URI: https://w3id.org/APD/traits/trait_0012432
Type: categorical
Definition: A floral organ morphology trait [TO:0000862] which is whether a filament [PO:0009067] is present [PATO:0000467] or absent [PATO:0000462], and if present, the shape [PATO:0000052] and the relative length [PATO:0000122], width [PATO:0000921], and thickness [PATO:0000915] of the filament.;Trait that considers the absence or presence of the filament, and in the latter case, the shape of the filament. Shape is considered in terms of length and width and is defined in relation to anther length/width.
Additional comments: The width of the filament may thus either be broad as in laminar (e.g., Eupomatiaceae) or bulky stamens (e.g., Chloranthaceae), or narrow (filamentous) as found in many core eudicots groups (e.g., Rosaceae). This trait is considered inapplicable when filaments are entirely fused with each other or to the perianth. Definition and trait values derived from Schoenenberger et al. (2020) for their character '305. Filament (D1)'

Allowed values:

value	description
absent	No filaments present
fused_into_fascicle_stalks	Special case where the stamens are fused into the stalk of a fascicle of flowers.
fused_into_synandrium	Filament structure formed when stamens fused together.
long_and_narrow	Filaments have a long and narrow shape. (Synonyms, filiform, slender)
long_and_narrow_divided_in_two	Filaments have a long and narrow shape that is divided in two; e.g. Adoxa.
long_and_very_wide	Filaments have a long and very wide shape; for instance, the petal-like (outer) stamens of Nymphaea.
long_and_wide	Filaments have a long and wide laminar shape.
petaloid	Filaments are long and wide and colorful, e.g. Canna.
present_general	Filaments present, with no specific defining characteristics.
short_and_narrow	Filaments have a short and narrow shape; subsessile anthers.
short_and_wide	Filaments have a short and wide laminar shape.
short_general	Filament is short relative to the anther.

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0012432) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 1,363 records. This includes: