| Name | Structure/ Category | Description |
|---|---|---|
| Floral | upon, within, or associated with the flowers. | |
| Floral Bracts | A compound flower often has floral bracts that circumscribe its base, particularly among members of the Asteraceae (Aster family). These scale-like bracts surround the ovaries of the flower and they are often appressed together. They are often referred to as 'involucral bracts' or 'phyllaries' by botanical authorities. | |
| Floral cup | A cup or tube usually formed by the fusion of the basal parts of the sepals, petals and/or stamens, and on which they are seemingly borne; surrounds the ovary, or ovaries, and may be fused wholly, partly or not at all to them; the shape varies from disc-like to cupshaped,flask-like or tubular; a hypanthium. | |
| Floret | A very small, structurally specialized flower, especially those of the grasses (Poaceae) and the sunflower family (Asteraceae). | |
| Flower | The reproductive structure in flowering plants (angiosperms), consisting of stamens and/or pistils, and usually including a perianth of sepals and/or petals. | |
| Follicle | [Fruits] {type} | A usually dry fruit, with one interior chamber or locule, and splitting open (dehiscing) lengthwise along a single line, as in milkweed (Asclepias). |
| Forbs | These are plants that produce flowers with conspicuous petals and/or sepals; the flowers of such plants are often showy and insect-pollinated. In contrast, grasses (Poaceae), sedges (Cyperaceae), and miscellaneous other plants are not forbs because their wind-pollinated flowers lack petals and sepals, or their petals and sepals are tiny and inconspicuous. Such wind-pollinated flowers are not very showy, although there are some exceptions. | |
| Four-angled | [Leaf cross section] {shape} | More or less diamond-shaped in cross section. |
| Four-ranked | [Leaves] {habit} | With leaves arranged in along the stem in four rows. |
| Free-central | [Placentation] {type} | Attachment of ovules to a free-standing central axis in a compound ovary which has a single inner compartment (unilocular), and thus no interior partitions (septa). |
