If Plants Don't Have Seeds How Do They Reproduce?
Some plants never produce seeds and instead reproduce using spores. In other cases, flowering plants also use vegetative reproduction. This is a form of asexual reproduction where a new plant grows from a vegetative (not flower-related) part of a parent plant. Does this Spark an idea?
-
Seedless Vascular Plants
-
Some plants never evolved to produce seeds. Instead, they produce windblown spores and require water for reproduction. Examples of this type of plant include club mosses, ferns and horsetails.
Bulbs
-
Garlic reproduces asexually with a bulb. Bulbs are actually very short stems with leaves swollen with stored food packed closely around the stem. A terminal (main) bud produces the next year's flowering shoots and lateral buds form new plants. An onion is an example of a bulb.
-
Corms
-
Corms, like bulbs, are formed by a short stem. Unlike in a bulb, however, the stem itself swells and stores food while the surrounding leaves only form thin, papery scales.
Rhizomes
-
Rhizomes are stems that grow horizontally underground and send up shoots that form new plants. Rhizomes are also sometimes used as food reserves for the plant.
Runners
-
Runners are horizontal stems that extend from the parent plant but remain above ground. When the terminal bud of a runner touches the ground, it takes root and produces a new plant. Strawberries are a popular example of a plant that uses runners to reproduce.
-
References
- Photo Credit Jupiterimages/Photos.com/Getty Images garlic bulb with one clove removed image by Carpenter from Fotolia.com