| Pulsatilla zimmermannii | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Ranunculales |
| Family: | Ranunculaceae |
| Genus: | Pulsatilla |
| Species: | P. zimmermannii |
| Binomial name | |
| Pulsatilla zimmermannii | |
| Synonyms | |
Pulsatilla pratensis subsp. hungarica [3] | |
Pulsatilla zimmermannii, also called Zimmermann's pasqueflower, [4] is a species of flowering plant of the family Ranunculaceae .
P. zimmermannii is a herbaceous perennial which grows up to 30 cm with feathery leaves. It has dark purple flowers with yellow stamens and purple stigmas which bloom from March to April and last between 5 and 11 days. [4] [5] [6]
P. zimmermannii is a calciphile and mostly grows on sunny mountain slopes and hillsides. It has also been found to grow on dry pastures with non-calcareous soils. [7]
The native range of P. zimmermannii is limited to Slovakia and Hungary, [8] but it is mostly found in northern and central Hungary. [9] In the past, it was also found in the southern lowlands of the Slanské Hills. [5]
Pollen is a powdery substance consisting of pollen grains which are microsporophytes of seed plants, which produce male gametes. Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male cone to the female cone of coniferous plants. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics. Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower.
Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind. Pollinating agents are animals such as insects, birds, and bats; water; wind; and even plants themselves, when self-pollination occurs within a closed flower. Pollination often occurs within a species. When pollination occurs between species it can produce hybrid offspring in nature and in plant breeding work.
A pollen tube is a tubular structure produced by the male gametophyte of seed plants when it germinates. Pollen tube elongation is an integral stage in the plant life cycle. The pollen tube acts as a conduit to transport the male gamete cells from the pollen grain—either from the stigma to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms. In maize, this single cell can grow longer than 12 inches (30 cm) to traverse the length of the pistil.
Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors.
The genus Pulsatilla contains about 40 species of herbaceous perennial plants native to meadows and prairies of North America, Europe, and Asia. Derived from the Hebrew word for Passover, "pasakh", the common name pasque flower refers to the Easter (Passover) flowering period, in the spring. Common names include pasque flower, wind flower, prairie crocus, Easter flower, and meadow anemone. Several species are valued ornamentals because of their finely-dissected leaves, solitary bell-shaped flowers, and plumed seed heads. The showy part of the flower consists of sepals, not petals.
Anacamptis morio, the green-winged orchid or green-veined orchid, is a flowering plant of the orchid family, Orchidaceae. It usually has purple flowers, and is found in Europe and the Middle East.
In botany, an operculum or calyptra is a cap-like structure in some flowering plants, mosses, and fungi. It is a covering, hood or lid, describing a feature in plant morphology.
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to facilitate reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing resulting from cross-pollination or allow selfing when self-pollination occurs.
The ponderosa lemon is a citrus hybrid of a pomelo and a citron. It is not the same as the 'Yuma Ponderosa' lemon-pomelo hybrid used as citrus rootstock.
Annona montana, the mountain soursop, is an edible fruit in the Annonaceae family native to Central America, the Amazon, and islands in the Caribbean. It has fibrous fruits. A. montana may be used as a rootstock for cultivated Annonas.
The Hungary women's national handball team is the national team of Hungary. It is governed by the Hungarian Handball Federation and takes part in international handball competitions. The team won the World Championship in 1965 and the European Championship in 2000.
Zantedeschia elliottiana, golden arum or golden calla lily, is a herbaceous ornamental plant in the family Araceae. It grows from a bulb. It is said to occur in the province of Mpumalanga in South Africa, although other sources say that it is not found in the wild but appears to be a hybrid of garden origin.
Anemone occidentalis, the white pasqueflower or western pasqueflower, is a herbaceous species of flowering plant in the buttercup family Ranunculaceae. Other authorities place it in the genus Pulsatilla. Individuals are 10–60 cm (3.9–23.6 in) tall, from caudices, with three to six leaves at the base of the plant that are 3-foliolate, each leaflet pinnatifid to dissected in shape. Leaf petioles are 6–10 cm (2.4–3.9 in) long. Leaves have villous hairs and their margins are pinnatifid or dissected. Plants flower briefly mid-spring to mid-summer, usually soon after the ground is exposed by melting snow. The flowers are composed of five to seven sepals, normally white or soft purple, also mixed white and blueish purple, one flower per stem. The sepals are 15–30 mm (0.59–1.18 in) long and 10–17 mm (0.39–0.67 in) wide. Flowers have 150–200 stamens. The fruit occurs in heads rounded to subcylindric in shape, with pedicels 15–20 cm (5.9–7.9 in) long. The achenes are ellipsoid in shape, not winged, covered with villous hairs, with beaks curved that reflex as they age and 20–40 mm (0.79–1.57 in) long, feather-like. Generally, the fruit persists into fall.
In phenology, season creep refers to observed changes in the timing of the seasons, such as earlier indications of spring widely observed in temperate areas across the Northern Hemisphere. Phenological records analyzed by climate scientists have shown significant temporal trends in the observed time of seasonal events, from the end of the 20th century and continuing into the 21st century. In Europe, season creep has been associated with the arrival of spring moving up by approximately one week in a recent 30-year period. Other studies have put the rate of season creep measured by plant phenology in the range of 2–3 days per decade advancement in spring, and 0.3–1.6 days per decade delay in autumn, over the past 30–80 years.
Crocus tommasinianus, the woodland crocus, early crocus, or Tommasini's crocus, was named after the botanist Muzio G. Spirito de Tommasini (1794-1879). It is native to Bulgaria, Hungary, Albania, and the former Yugoslavia. It is often referred to as the early or snow crocus, but these terms are shared with several other species, although C. tommasinianus is amongst the first to bloom. Multiple plants are often called tommies in the horticultural trade.
Thalassia testudinum, commonly known as turtlegrass, is a species of marine seagrass. It forms meadows in shallow sandy or muddy locations in the Caribbean Sea and the Gulf of Mexico. Turtle grass and other seagrasses form meadows which are important habitats and feeding grounds. The grass is eaten by turtles and herbivorous fish, supports many epiphytes, and provides habitat for juvenile fish and many invertebrate taxa.
Anemone halleri, Haller's anemone, is a species of flowering plant in the buttercup family Ranunculaceae, that can be found in sub-alpine and alpine regions of southern France, southern Switzerland, northern Italy and Poland, extending eastward to Greece, Bulgaria and Ukraine. It is found in mountain meadows, dry hills, dry grassy locations and mountainous forest glades. It is collected and cultivated for botanical and private gardens.
Flowering synchrony is the amount of overlap between flowering periods of plants in their mating season compared to what would be expected to occur randomly under given environmental conditions. A population which is flowering synchronously has more plants flowering at the same time than would be expected to occur randomly. A population which is flowering asynchronously has fewer plants flowering at the same time than would be expected randomly. Flowering synchrony can describe synchrony of flowering periods within a year, across years, and across species in a community. There are fitness benefits and disadvantages to synchronized flowering, and it is a widespread phenomenon across pollination syndromes.
Grevillea brachystylis, also known as short-styled grevillea, is a species of flowering plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a low, spreading to erect shrub with linear to narrow egg-shaped leaves with the narrow end towards the base, and wheel-like clusters of hairy red flowers.
Petrophile filifolia is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a small shrub with curved, long, needle-shaped leaves and more or less spherical heads of hairy cream-coloured to pale yellow flowers.
