Seaweeds are edible, especially the red and brown algae. The three most common types of seaweeds are known by their Japanese names: nori (Porphyra), red seaweed high in vitamin С and digestible protein; kombu (Laminaria); and wakame (Undaria), high in calcium. They are eaten raw, cooked, or dried and have several vitamins and minerals as […]
Although the characteristics of different plant seeds vary greatly, some structural features are common to all seeds. Each seed contains an embryo with one, two, or several cotyledons. In angiosperm seeds, the embryo may have either one or two cotyledons. Angiosperms with one cotyledon are plants are called monocots, those with two cotyledons are called […]
The range of seed size is extreme more than nine orders of magnitude. The largest known seed is that of the double coconut (Lodoicea maldivica); the seed and fruit together weigh as much as 27 kilograms. At the other end of the scale, the dustlike seeds of some orchids, begonias, and rushes weigh only about […]
Seeds are adapted for conditions other than geographic dispersal. When a seed arrives at its destination after dispersal, conditions may not be suitable for establishment of the plant. The delaying mechanism which prevents germination under adverse conditions is called dormancy. Seeds can remain in a condition of dormancy for varying lengths of time, depending on […]
Fruits can be classified, based on the nature of the pericarp, into two groups: fleshy and dry. Fleshy fruits, in turn, are classified into several types, including drupes, berries, pomes, hesperidia, and pepos. Dry fruits are also subdivided into several categories, including follicles, legumes, capsules, achenes, nuts, samaras, schizocarps, and caryopses. The three most familiar […]
Weigela Flower, Types of Weigela
Type: Perennial Flower Species: 10 Height: 5 – 15 Growing: Asia Flowers: White, Pink, Red, Yellow Kingdom: Plantae Unranked: Angiosperms, Eudicots, Asterids Order: Dipsacales Family: Caprifoliaceae Genus: Weigela