Frasera speciosa is a very large plant that flowers once before it dies (
monocarpic), but may live for many years before flowering. Plants that are not yet ready to flower are made up of strap like leaves with short stalks in a low cluster (
basal leaves). Though not as striking as the very tall flowering stalk, this stage of growth is quite unique in appearance and size in their range. The top of the root is a fleshy structure that may be branched so that a plant may have several rosettes. Flowering is generally by plants with between 25 and 36 leaves in the previous season, but may occur in plants with twelves or more leaves. Mature plants have one, large, thick, flowering stem that has no branches. The flowering stem is also covered in leaves (
cauline leaves) that start out large at the base and decrease in size towards the top.
Flowers The flowering stem is densely packed with blooms, the ones lower down on the stem will have small stems attaching them to the main stem (
pedunculate) while the upper ones attach directly to the main stem (
sessile). The dish shaped flowers are found above the base of the leaves in each whorl.
Frasera speciosa has flowers with four petals, silvery green or pale green in color with a variable amount of purple flecking or darker green spots, from almost none at all to nearly covering the petals. Flowers do not have a noticeable fragrance. Each fertilized flower produces an oblong fruit called a capsule that is 18–25 millimeters long. Each capsule contains approximately sixty seeds. ==Taxonomy==