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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.
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 ...
City Date incorporated Population as of (2020 Census) Agoura Hills: December 8, 1982: 20,299 Alhambra: July 11, 1903: 82,868 Arcadia: August 5, 1903: 56,681 Artesia ...
This is a list of notable districts and neighborhoods within the city of Los Angeles in the U.S. state of California, present and past.It includes residential and commercial industrial areas, historic preservation zones, and business-improvement districts, but does not include sales subdivisions, tract names, homeowners associations, and informal names for areas.
The Endemic flora of the State of California — native plants found within its borders, and nowhere else in nature.; The largest area of the state is in the Mediterranean climate floristic region, within the California Floristic Province — with the greatest number of endemic plants in North America.
In an epigynous flower, the stamens, petals, and sepals are attached to the hypanthium at the top of the ovary or, occasionally, the hypanthium may extend beyond the top of the ovary. Epigynous flowers are often referred to as having an inferior ovary. Plant families with epigynous flowers include orchids, asters, and evening primroses.
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 .
The genus comprises herbaceous perennial plants, shrubs, and rarely small trees, growing 0.5–6 m (1.5–19.5 feet) tall, with bipinnate leaves. The flowers are produced in cylindrical or globose inflorescences and have numerous long slender stamens which give rise to the common names powder-puff, powder puff plant, and fairy duster.