The plants in the undergrowth of the Laurentian Forest are subject to very changeable light and temperature conditions, depending on the season.
Image: undergrowth in spring
undergrowth in spring

In spring the soil begins to warm up, and the plants beneath the spreading trees take advantage of the heat and abundant light to grow, accumulate reserves, bloom and produce berries.

Once summer comes, the trees blocks much of the sunlight. The plants have finished flowering. Along with their flowers and fruit, some plants also lose their foliage, leaving nothing more than a bulb or rhizomes in the soil.

The reserves stored in the bulb or rhizomes allow the plant to survive and even to grow in the soil until springtime rolls around again.
Biodôme de Montréal

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