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Celmisia Saxifraga
''Celmisia saxifraga'', commonly known as the small snowdaisy, is a perennial herb in the Asteraceae family. It is native to Tasmania and Victoria, where it grows in alpine grasslands above the snowline. Description Like other members of the Asteraceae family, ''C. saxifraga'' has a composite flower head with both disk and ray florets. Inflorescence are a typical daisy arrangement with white outsides and a yellow centre. The entire inflorescence can be 3 cm across, and is often held well above the rosette on a hairy stem growing to 15 cm. The fruit is small, hard, and dry, similar to a sunflower seed. This is often called an achene, but in Asteraceae is more accurately called a cypsela. The primary difference between the two being that a cypsela is a single fruit formed from two ovaries (as in ''C. saxifraga'') while an achene describes a fruit formed from a single ovary. The leaves of ''C. saxifraga'' are simple and entire, growing to 3 cm long. They are glaucous silver and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypsela (botany)
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. 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 in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxifraga
''Saxifraga'' is the largest genus in the family Saxifragaceae, containing about 465 species of holarctic perennial plants, known as saxifrages or rockfoils. The Latin word ''saxifraga'' means literally "stone-breaker", from Latin ' ("rock" or "stone") + ' ("to break"). It is usually thought to indicate a medicinal use for treatment of urinary calculi (known as kidney or bladder stones), rather than breaking rocks apart. Description Most saxifrages are small perennial, biennial (e.g. '' S. adscendens'') or annual (e.g. '' S. tridactylites'') herbaceous plants whose basal or cauline leaves grow close to the ground, often in a rosette. The leaves typically have a more or less incised margin; they may be succulent, needle-like and/or hairy, reducing evaporation. The inflorescence or single flower clusters rise above the main plant body on naked stalks. The small actinomorphic hermaphrodite flowers have five petals and sepals and are usually white, but red to yellow in some specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
