What is the stem/stalk of a flower called?
The stem/stalk of a whole flower is called the peduncle. If the plant has several smaller flowers, each individual stem bearing a flower is called the pedicle.
What is the stalk of the stamen called?
Each stamen has 2 parts the stalk, called the filament and the pollen producing organ called the anther. The Filament is the stalk of the anthers Which structure is a stalk supports a single flower?
What are the small leaf-like parts of a flower?
These are the small, leaf-like parts growing at the base of the petals. They serve to protect the flower before it blossoms. This refers to the stem or stalk of a flower. This is the thickened part at the bottom of the flower which holds its major organs.
What is the difference between a stem and a stalk?
A stem is a part of the plant that is a central shoot that holds the leaves, branches, flowers, and so on. The true rhubarb stem is a hollow, nearly bamboo-like cylinder, which leads up to a terminal shoot that eventually develops flower buds. A stalk, on the other hand, can be both leaf stalk and the stem of a plant.
What is the long or short stalk of the flower called?
It consists of a long slender stalk, the filament, with saclike structures at its tip, called anthers, which contain the pollen. The stamens of a single flower are collectively referred to as androecium.
What is the stalk of a solitary flower called?
peduncleIn botany, a peduncle is a stalk supporting an inflorescence or a solitary flower, or, after fecundation, an infructescence or a solitary fruit. The peduncle sometimes has bracts (a type of cataphylls) at nodes. The main axis of an inflorescence above the peduncle is the rachis.
What is the stalk called?
In botany, the petiole (/ˈpiːti.oʊl/) is the stalk that attaches the leaf blade to the stem, and is able to twist the leaf to face the sun. This gives a characteristic foliage arrangement to the plant. Outgrowths appearing on each side of the petiole in some species are called stipules.
What is the difference between a stem and a stalk?
Botanists and arborists will usually use stem to refer to a slender portion of the plant, while stalk refers to something more substantial, often the main upright "load-bearing" portion of a plant's body. A stalk can bear several stems, but a stem cannot bear a stalk. In her blog called BotanicalAccuracy.com, Dr.
What is a stalk that bears the androecium and gynoecium
A stalk that bears the androecium and gynoecium is an androgynophore , e.g., Passifloraceae. A stalk-like structure that bears stamens alone is termed an androphore (e.g., some Eriocaulaceae); one that bears one or more pistils is a gynophore or stipe (see Gynoecium, Carpel, and Pistil, page 480). View chapter Purchase book.
How hot do carrots grow?
Carrots are capable of growing in any area where the growing season is cool; the optimum growth temperature is typically 16–18 °C. Under excessively cool conditions there is a tendency for the plants to bolt (produce flower stalks in the first year); under hot conditions, plants produce excessive leaf growth at the expense of root growth. Soil needs to be free from stones and clods, as this often leads to fanged roots. The crop requires a steady supply of available soil moisture in order to produce high yields and good quality. The crop has a relatively low fertilizer requirement. It is possible for UK carrot growers to supply produce all year round. This has been possible by extending the main growing season using a combination of field and refrigerated storage together with early production under plastic film and nonwoven agrotextile crop covers. In the UK, the earliest sowings for conventional production of carrots (i.e., without the use of plastics) are possible from the last week in February and continue through to the end of April under UK conditions. This provides production of carrots from July until October. Earlier production from the end of May until the beginning of July is possible from sowings made during January and February under perforated plastic-film crop covers. Such early crops (often referred to as second earlies) are typically grown under 200-hole polyethylene (200 × 1 cm diameter holes m−2) supported by the crop. Certain carrot cultivars can also be overwintered under plastic-film crop covers to get even earlier maturity. This is achieved by sowing in September. Sowing date is critical as, if this is too early, the crop will bolt due to the large plants being sensitive to the vernalizing effect of cold winter temperatures. Alternatively, if the sowing date is too late, the crop will not be large enough to survive the winter satisfactorily. The latest sowings are made in late April and May. These sowings supply crops from October to May through crop storage under field conditions, or until the end of June if carrots are stored in refrigerated cold stores. Seed spacing is varied to produce roots of different sizes. Densities vary from 55–110 plants m −2 for large carrots suitable for dicing (greater than 45 mm), 160 plants m −2 for medium-sized roots for prepacking (32–43 mm), 380 plants m −2 for small roots for canning (18–32 mm), to 430 plants m −2 for freezing (20–25 mm).
How are carrots stored?
After removing the tops, the roots are loosened using an undercutting device. The roots are then lifted on a conveyor, and the soil is shaken free to leave the carrots which are then washed. Carrots are moderately resistant to frosts, and crops can usually be stored in the field during winter until required.
What is the outermost series of leaves?
The calyx is the outermost series or whorl of modified leaves. Individual units of the calyx are sepals, which are typically green, leaflike, and function to protect the young flower. The corolla is the innermost series or whorl of modified leaves in the perianth. Individual units of the corolla are petals, which are typically colored (nongreen) ...
What is the outermost part of a flower called?
The perianth (also termed the perigonium) is the outermost, nonreproductive group of modified leaves of a flower. If the perianth is relatively undifferentiated, or if its components intergrade in form, the individual leaflike parts are termed tepals. In most flowers the perianth is differentiated into two groups.
What is the color of dandelions?
Dandelions produce leaves, which are deeply toothed, in a basal tuft and a single, composite, yellow flower atop a hollow stalk. Its cultivated forms are larger and leafier than the weedy forms. Improved cultivars (mostly of French origin) are larger, tenderer, less bitter, and slightly greener than the wild types.
What are the parts of a flower?
The basic parts of a flower, from the base to the apex, are as follows ( Figure 9.13 ). The pedicel is the flower stalk. (If a pedicel is absent, the flower attachment is sessile .) Flowers may be subtended by a bract, a modified, generally reduced leaf; a smaller or secondary bract, often borne on the side of a pedicel, is termed a bracteole or bractlet (also called a prophyll or prophyllum ). Bracteoles, where present, are typically paired. [In some taxa, a series of bracts, known as the epicalyx, immediately subtends the calyx (see later discussion), as in Hibiscus and other members of the Malvaceae.] The receptacle or floral receptacle (also termed a torus, although “torus” can also be used for a compound receptacle; see Inflorescence Parts, page 484) is the tissue or region of a flower to which the other floral parts are attached. The receptacle is typically at the very tip of the floral axis (derived from the original apical meristem). In some taxa the receptacle can grow significantly and assume an additional function. From the receptacle arise the basic floral parts. The perianth (also termed the perigonium) is the outermost, nonreproductive group of modified leaves of a flower. If the perianth is relatively undifferentiated, or if its components intergrade in form, the individual leaflike parts are termed tepals. In most flowers the perianth is differentiated into two groups. The calyx is the outermost series or whorl of modified leaves. Individual units of the calyx are sepals, which are typically green, leaflike, and function to protect the young flower. The corolla is the innermost series or whorl of modified leaves in the perianth. Individual units of the corolla are petals, which are typically colored (nongreen) and function as an attractant for pollination. Some flowers have a hypanthium (floral tube), a cuplike or tubular structure, around or atop the ovary, bearing along its margin the sepals, petals, and stamens.
What is a fasciated willow?
The fasciation of a fan-tailed willow makes it a highly desirable landscape shrub. Fasciation deformation of flowers such as the cauliflower-like heads of a celosia is part of the charm of the plant. Crested saguaro cactus, fasciated Japanese cedar, beefsteak tomatoes, and broccoli are all examples of desirable fasciations.
Why do flowers have fascia?
While fasciation in flowers is usually a one-time occurrence, sometimes the fasciation is carried in the plant’s genetic material so that it reoccurs from generation to generation. More often, fasciated plants have to be propagated vegetatively to carry on the unusual characteristics.
What causes fascia in plants?
Fasciation literally means banded or bundled. Scientists aren’t sure what causes the deformity, but they believe it is probably caused by a hormonal imbalance. This imbalance may be the result of a random mutation, or it can be caused by insects, diseases, or physical injury to the plant. Think of it as a random occurrence.
What does it mean when a flower stem is flat?
If you’ve ever found a flower stem that looks wide and flattened, splayed, or fused, you’ve probably discovered an odd disorder called fasciation. Some fasciation in plants result in huge, grotesque stems and flowers, while others are quite subtle.
Does fasciation spread to other plants?
It doesn’t spread to other plants or other parts of the same plant. The result of fasciation is thick, often flattened, stems, and large flowers, or flower heads with far more than the usual number of flowers. The extent of fasciation deformation of flowers depends on where the damage occurs.
Can you prune a perennial plant without damaging it?
Once the damage is done, you can’t correct fasciation on that particular stem. In some cases, you may be able to prune out the affected stems without damaging the plant. The good news is that perennials that exhibit fasciation may be perfectly normal next year, so there is no need to destroy the plant.
What is the difference between a rhubarb stem and a stalk?
A stalk, on the other hand, can be both leaf stalk and the stem of a plant.
What is the botanical name for rhubarb?
The 'stalks' we eat is the edible part of the otherwise toxic plant, and it is the leaf stalks. The botanical, scientific name for this in English is 'petiole'.
Why are there inaccuracies in plants?
Inaccuracies are common when it comes to plants, because it seems like we humans care to learn less about green things like trees, flowers, and herbs than we care to learn about animals, even when we eat plants, paint them, plant them, extract their chemicals, or use them in numerous other ways.
What is science?
Science is a process of gaining knowledge and understanding of the world around us. It is a never-ending process, and what we think are true facts today might change tomorrow. In science we are aiming for having the best understanding possible today based on what we and our predecessors have learned until now.
When was rhubarb first used as food?
Wikipedia: "The use of rhubarb stems as food is a relatively recent innovation, first recorded in 17th century .". {But Wikipedia gets it right in the beginning of the article on rhubarb.}. Royal Horticultural Society (RHS): "Rhubarb is a rhizomatous perennial whose stems (‘sticks’) grown as vegetable but used mainly as a dessert.".
What is the axillary bud?
Axillary buds give rise to a shoot that may be vegetative (branch) or reproductive (flowers). It is also called the lateral bud. Petiole: The thin stalk with which leaf is attached to the stem node is called a petiole. The petiole is commonly known as leaf stalk.
What are some examples of axillary buds?
Tendril: These types of stems are slender, spirally coiled, which help a plant to climb. Example: Passiflora, Grapevine etc. Bulbil: These are modified axillary buds which become fleshy and swollen due to the storage of food. They help in vegetative propagation to form a new plant. Example: Dioscorea.
What is a non-green underground stem with distinct nodes and internodes and dry, scaly
Rhizome: is a non-green underground stem with distinct nodes and internodes and dry, scaly leaves at the nodes. It grows horizontally or obliquely. Rhizomes store plant nutrition in the form of proteins and starches. Example: Ginger.
What is a stolon stem?
Stolon: It grows above ground for some time and then bends towards the ground until it touches the ground. Stolon arises from the lower part of the main axis. Example: Jasmine, colocasia, etc. Sucker: The sucker stem is very similar to the stolon, but it grows obliquely upwards and gives rise to a new plant.
What is a tuber in plants?
Tuber: is a short and thickened underground stem that grows horizontally below the ground. It stores plant nutrition in the form of starch. Example: Potatoes. Bulb: is a short underground stem with internal buds surrounded by fleshy leaves or leaf bases that helps the plants survive adverse environmental conditions.
What is the function of stems in plants?
Few green stems perform photosynthesis as well. The plant stem serves as a means of asexual reproduction in many plant species. Many plants, such as ginger, onion, and dahlia, grow from buds present on the stem’s surface.
What part of a plant is the aerial part?
Except for a few plant stems, most of the stem is the aerial part of a plant, which bears buds, flowers, leaves, and fruits. It is also known as a “central axis” that connects the root system with the rest of the plant body. It is generally erect, strong, and usually grows away from the soil and towards sunlight.