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Trillium grandiflorum in the foreground and the smaller Thalictrum thalictroides in the background are both spring ephemerals of North American deciduous forests. An ephemeral plant is a plant with a very short life cycle or very short period of active growth, often one that grows only during brief periods when conditions are favorable.
It is a spring ephemeral—foliage that grows in the spring dies down to its tuberous rootstock in summer. It has long-spurred flowers which appear in spring. The flowers may be mauve, purple, red, or white. The seeds contain an elaiosome that attracts ants, which transport the seeds into their ant colony.
It is a small spring ephemeral reaching only 5–15 cm tall when in flower, and slightly larger afterwards. Each spherical bulb gives rise to a single purplish stem, which terminates in an umbel. The flowers have white petals and large dark-reddish anthers. The teardrop shaped petals are 3-4 millimeters long, widely spaced and do not touch each ...
A yellow trout lily produces an erect flower stalk with a nodding, bisexual flower with 6 recurved, yellow, lanceolate tepals. The 20 to 33 mm long tepals are composed of 3 petals and 3 petal-like sepals. [3] E. americanum does not flower for the first 4 to 7 years of its life. [5] [6] In any given colony, only 0.5% will have flowers. [8] [3]
Corydalis solida, fumewort or bird-in-a-bush, [1] is a species of flowering plant in the family Papaveraceae, native to moist, shady habitats in northern Europe and Asia. Growing to 25 cm (10 in), it is a spring ephemeral, with foliage that appears in spring and dies down to its tuberous rootstock in summer.
The flowers are 0.7–1.4 cm (0.28–0.55 in) in diameter with five pale pink or white (rarely yellow) petals, [6] and reflect UV light. [7] It has a raceme inflorescence, in which its flowers branch off of the shoot. The individual flowers bloom for three days, although the five stamens on each flower are only active for a single day. [7]
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The plant multiplies in favourable conditions to form clumps. Each plant bears a single white flower with greenish marks near the tip of the tepal, on a stem about 10–20 cm (3.9–7.9 in) tall, occasionally more. The Latin specific epithet vernum means "relating to Spring"; [8] its close relative, Leucojum aestivum, flowers in summer.