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Bulbous spring plants

Bulbous spring plants

This animation demonstrates the anatomy of tulips, daffodils and snowdrops.

Biology

Keywords

bulbous plant, spring, snowdrop, daffodil, tulip, flower, stem, onion, fibrous root system, parallel-veined leaf, cold tolerant, tepal, sessile, stamen, carpel, plant, monocot, biology

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Scenes

Narration

Bulbous spring plants are adapted to cold weather and prefer loose, well-drained soils.

The white flowers of the common snowdrop appear on the ground of deciduous forests when the snow starts to melt. Common snowdrops are bulbous monocots. The nutrients stored in the bulb below the soil surface are used by the plant for growth and development. They are perennial plants that flower every year and have a fibrous root system. Their leaves have parallel veins, or venation. They have a single pendulous flower on a cylindrical stalk. Their flower has three outer tepals that are larger than the three inner tepals, which have a green top. Their natural habitat is in moist forests, groves and scrublands, where the soil is rich in minerals and humus. Common snowdrops flower between February and March and bloom early in the year. They are protected species in their natural habitat.

Wild daffodils are perennial, bulbous plants that are classified as monocotyledons. Their tepals are pale yellow, and there is a darker yellow trumpet emerging in the middle. They have long, narrow leaves with parallel veins, which grow from the bottom of the stalk. The whole flower contains poisonous alkaloids, especially the bulb and leaves. They are popular ornamental plants, but their natural habitat is in forests and grassy and rocky areas.

Tulips are perennial, bulbous plants that are classified as monocotyledons. About a 100 species and more than a thousand bred varieties are categorized as tulips. They have a single flower that emerges from leaves with parallel veins perched atop a scape that grows from the bulb. The six tepals, which together form a bell, are usually red, but they also come in a range of other colors. Tulips have six stamens, and the pistil is made up of three carpels. Their natural habitat is mostly in the mountains; they usually grow on rocky or dry grasslands. But they also adorn many a beautiful garden.

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