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In botany, a perigynium (plural: perigynia), also referred to as a utricle, typically refers to a sac that surrounds the achene of plants in the genus Carex . [ 1 ] [ 2 ] The perigynium is a modified prophyll , also known as a glume , which is tissue of leaf origin that encloses the dry, one-seeded achene.
The flowers are perigynous with a bell- or urn-shaped hypanthium, externally covered with many soft hairs (pubescent) in most species. The flowers have five free petals , which are pink, purple, magenta or white in colour, or initially magenta or rose-red fading to lavender with age.
The style is a hollow tube in some plants, such as lilies, or has transmitting tissue through which the pollen tubes grow. [15] The stigma (from Ancient Greek στίγμα, stigma, meaning mark or puncture) is usually found at the tip of the style, the portion of the carpel(s) that receives pollen (male gametophytes). It is commonly sticky or ...
Theophrastoideae is a small subfamily of flowering plants in the family Primulaceae. It was formerly recognized as a separate family Theophrastaceae . As previously circumscribed, the family consisted of eight genera and 95 species of trees or shrubs , native to tropical regions of the Americas .
It is usually found on open hillsides [3] and desert washes and slopes that fall below 5,000 feet (1,500 m). These plants can grow to be up to 2 to 4 feet (60 to 120 cm) wide and 1 to 3 feet tall. During the spring and summer the plant begins to bloom pale to vibrant pink flowers. [6]
Buttercups usually flower in the spring, but flowers may be found throughout the summer, especially where the plants are growing as opportunistic colonizers, as in the case of garden weeds. The water crowfoots ( Ranunculus subgenus Batrachium ), which grow in still or running water, are sometimes treated in a separate genus Batrachium (from ...
This plant is usually avoided by cattle and many other animals that roam the southern Midwest area as it is very prickly and has limited nutritional value. The seeds are the most nutritional part of the plant. Quails and doves consume these seeds for its high oil content. Each flower produces an abundance of seeds making it a reliable food source.
A mature flower. In this example, the perianth is separated into a calyx (sepals) and corolla (petals) The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when called a perigone.