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Asteraceae (/ ˌ æ s t ə ˈ r eɪ s i. iː,-ˌ aɪ /) is a large family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the order Asterales. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species
Abies ← [a] Abronia ← Acacia ← Acanthus ← Actinidia ← Actinotus ← Aerangis ← Aeranthes ← Aerides ← Aeschynanthus ← Agalmyla ← Agastache ← Agrostemma ← Aichryson ← Alloplectus ← Alopecurus ← Alphitonia ← Ammocharis ← Ammophila ← Androstephium ← Anemone ← Angophora ← Antirrhinum ← Aphyllanthes ← Archontophoenix ← Arctostaphylos ← Ardisia ← ...
An Oligocene (34 – 23 Mya) pollen is known for Asteraceae and Goodeniaceae, and seeds from Oligocene and Miocene (23 – 5.3 Mya) are known for Menyanthaceae and Campanulaceae respectively. [5] According to molecular clock calculations, the lineage that led to Asterales split from other plants about 112 million years ago [ 6 ] or 94 million ...
Aster amellus is the type species of the genus and the family Asteraceae. [1] The name Aster comes from the Ancient Greek word ἀστήρ (astḗr), meaning 'star', referring to the shape of the flower head. Many species and a variety of hybrids and varieties are popular as garden plants because of their attractive and colourful flowers.
open – petals or sepals do not overlap or even touch each other . reduplicate – folded outwards. valvate – margins of adjacent petals or sepals touch each other without overlapping. vexillary – a special type of aestivation occurring in plants like pea; in this type of aestivation a large petal called standard encloses two smaller petals.
Replacement of a tap root system by a fibrous root is seen in onions, tuberose (Polyanthes tuberosa), grasses, etc. Fibrous roots from normal-stem nodes are seen in grasses like maize, sugarcane, bamboo, etc. Fibrous roots from nodes help in the survival of the plant and thus in vegetative reproduction, when the plant's base is damaged or cut ...
Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. They are found primarily in temperate regions of the world. [ 2 ] Plants within the tribe are present nearly worldwide divided into over 250 genera and more than 3,100 species, making it the second-largest tribe in ...
Calendula (/ k ə ˈ l ɛ n dj uː l ə /) [2] is a genus of about 15–20 species [3] of annual and perennial herbaceous plants in the daisy family, Asteraceae that are often known as marigolds. [ 4 ] : 771 They are native to Europe, North Africa, Macaronesia and West Asia , and have their center of diversity in the Mediterranean Region . [ 5 ]