Lettuce seed comes from lettuce plants. Lettuce plants produce a flowering stem, known as a "bolt", which the plant sends up from the center of the plant when the weather becomes hot. The bolt produces flowers, that once pollinated, dry up and produce seed.Know More
Once a lettuce plant starts to bolt and produce flowers, the leaves are no longer good to eat, as they taste bitter. It is best to select one or two plants to produce seeds, and mark them early in the season.
Lettuce is a self-pollinating species, meaning that it does not require another plant to produce viable seed. However, given close proximity to another plant, it can cross-pollinate. Therefore, if trying to produce seed, it is best to cover the seed heads of different varieties to prevent cross-pollination.Learn more about Botany
Seaweeds used in food and herbal medicine come from multicellular marine algae species that grow from the seabed as well as in many lakes and rivers. The term "seaweed" collectively refers to many varieties of plants that don't all share a common origin.Full Answer >
Seeds spread through the help of people, animals, wind and water. Some plants eject their seeds from their seedpods. One way in which seed dispersal occurs is when a seed gets caught in an animal's fur or a bird's feathers.Full Answer >
A seed is essentially a tiny plant embryo awaiting the proper amount of moisture, oxygen, temperature and light. When the environment meets the proper conditions, the seed germinates, which means it begins to sprout and grow into a seedling.Full Answer >
Coconut seeds disperse by action of the ocean waves and by being deliberately planted by human beings. The coconut seed, which is technically a drupe, is one of the largest seeds. It's too large to be eaten by birds or other animals and then deposited through the animal's droppings.Full Answer >