• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Pharmacognosy practice II.
Pharmacognosy practice II.

... The flowering stems are flattened and bear at each node a pair of leaves unequal in size, in the axils of which occur singly the flowers or occasionally fruits. The flowers have a gamosepalous calyx and campanulate corolla. The fruits are globular berries, green or brownish-black and surrounded by t ...
Polygonaceae
Polygonaceae

... wide, bases gradually narrowing to long petioles, entire; stipules fused to form sheaths, brown or red-brown, membranous; stem leaves few, reduced. ...
View presentation No. IeCAB010-303b
View presentation No. IeCAB010-303b

... different crops is written by a number of distinguished Agro Scientists and Biologists after long periods of trials. The file provides information in the form of a table with plant name, number of applications, amount of lithovit per application (kg/hectare), total amount per growth period (kg/hecta ...
Consortium for Educational Communication
Consortium for Educational Communication

... genera like Pinus, the branches are of two types. i). Long shoots or branches of unlimited growth ii). Dwarf shoots or branches of limited growth. 5. The leaves are mostly xerophytic, evergreen, simple or compound, and vary in size from small scaly leaf to more than six feet long leaves as in Cycas. ...
2016 Seattle Tilth May Edible Plant Sale Herb and Flower Plant List
2016 Seattle Tilth May Edible Plant Sale Herb and Flower Plant List

... flavor is similar to that of sweet basil, but somewhat stronger and spicier. Genovese Also called Perfumed Basil. Leaves are small and fine with a strong aroma and potency - perfect for pesto! Italian Large Leaf The leaves on this basil can grow to be an impressive 4" long! They can be used as a wra ...
pub3306wheatpocketguideforwebnov20141completebook
pub3306wheatpocketguideforwebnov20141completebook

... cutleaf evening-primrose from October through February. Cutleaf evening-primrose can be controlled with certain herbicides in wheat. Optimum timing Cutleaf evening-promise plant of herbicide application for cutleaf evening-primrose control in rosette growth stage in wheat is in late-fall and very ea ...
Tree diversity and economic importance of forest trees of Kashmir
Tree diversity and economic importance of forest trees of Kashmir

... Keywords: Jammu & Kasmir, Biodiversity, Prunus, Pinaceae @2013 BioMedAsia All right reserved ...
20. PLANT GROWTH REGULATORS
20. PLANT GROWTH REGULATORS

... where; it is transported to other plant parts. Hence, the highest concentration of IAA is found in growing shoot tips, young leaves and developing auxiliary shoots. In monocot seedling, the highest concentration of auxin is found in coleoptile tip which decreases progressively towards its base. In d ...
New handbook for standardised measurement of plant functional
New handbook for standardised measurement of plant functional

... (Southwood 1977; Grime 1979). They also provide understanding of how functional diversity in the broad sense underpins ecosystem processes and the benefits that people derive from them (Chapin et al. 2000; Díaz et al. 2007), and offer the possibility of comparing distant ecosystems with very little t ...
Polygonaceae - University of Alaska
Polygonaceae - University of Alaska

... Inflorescences terminal, occupying the upper half of stems, compact or globose when young, elongating later into interrupted clusters, usually unbranched or sparsely branched; pedicels 1 to 4 mm long; flowers 3 to 7 in whorls, unisexual, red or red-purple; inner tepals distinctly enlarged, 2.3 to 3 ...
Pruning impacts on shoot-root
Pruning impacts on shoot-root

... The results showed that bract length, weight and bract numbers per plant were significantly decreased by complete pruning in the final season (Table 1). Bract length and weight was almost similar in all treatments in first season. In the final season, the highest bract length and weight was observed ...
ID Guide
ID Guide

... birch (B. populifolia) has whitish bark but does not peel and is generally a smaller tree. Leaves are longer with narrower points at the tips and solitary male catkins (vs. 3 or more in paper birch). ...
Seasonally Flooded Basins - Minnesota Board of Water and Soil
Seasonally Flooded Basins - Minnesota Board of Water and Soil

... FIELD CHARACTERISTICS: A densely tufted, annual sedge with fibrous roots. The stems are up to 50 cm. in height, 0.5-2 mm. thick with sheaths that are oblique at the apex. Spikelels are ovoid, up to 16 mm. long and many-flowered. Nutlets (achenes) are lens-shaped, obovoid and 0.7-1.2 mm. long with a ...
Survival
Survival

... The young shoots of almost all species are edible raw or cooked. Raw shoots have a slightly bitter taste that is removed by boiling. To prepare, remove the tough protective sheath that is coated with tawny or red hairs. The seed grain of the flowering bamboo is also edible. Boil the seeds like rice ...
Tibher alert flyer
Tibher alert flyer

... Where does it like to grow? Cane tibouchina prefers wet and mesic forest, where it thrives in areas with open understory. It grows in both sun and shade, although it prefers sunny gaps. It can grow through uluhe, but truly thrives in disturbed areas, particularly sites damaged by pigs or landslides ...
PowerPoint
PowerPoint

... Perennials - Live for more than 2 years Ex. Asparagus, grasses - herbaceous Ex. Maple trees-woody stem ...
the effect of applying exogenous salicylic acid on aphid infection
the effect of applying exogenous salicylic acid on aphid infection

... had the highest number of stomata cm-2, along with the lowest width of both stoma and its aperture. Thickness of xylem tissue and the number of xylem vessels bundle-1 in leaf midrib, reducing sugars and free amino acids was increased at 50 mg l-1 SA, but free phenolics content did not affected signi ...
20. Glass House 2, HAWORTHIA. Glass house GH2 has our Genus
20. Glass House 2, HAWORTHIA. Glass house GH2 has our Genus

... Haworthia truncata SCHOUL is the type species. Plants are stemless with leaves distichously arranged. Leaves seven to nine in two exactly opposite rows, abruptly truncate at the tips, 2.3 to 3.5 cm long, 1.5 to 3 cm broad, 5 to 7 mm thick, slightly incurved. Faces of the tips are transparent with t ...
Edible Flowers, Herbs and Pollinator Plants
Edible Flowers, Herbs and Pollinator Plants

... flavor is similar to that of sweet basil, but somewhat stronger and spicier. Genovese Also called Perfumed Basil. Leaves are small and fine with a strong aroma and potency - perfect for pesto! Italian Large Leaf The leaves on this basil can grow to be an impressive 4" long! They can be used as a wra ...
New handbook for standardised measurement of plant functional
New handbook for standardised measurement of plant functional

... (Southwood 1977; Grime 1979). They also provide understanding of how functional diversity in the broad sense underpins ecosystem processes and the benefits that people derive from them (Chapin et al. 2000; Díaz et al. 2007), and offer the possibility of comparing distant ecosystems with very little t ...
PDF - FloraBase - Department of Parks and Wildlife
PDF - FloraBase - Department of Parks and Wildlife

... known from Western Australia. In Craven’s revision the species were placed in six informal groups. Four of the groups had less than ten species apiece but the C. exstipulata DC. and C. variabilis Lindl. groups were much larger and described as ‘largely associations of convenience’ (Craven 1987: 17). ...
2.4 MB - CSIRO Publishing
2.4 MB - CSIRO Publishing

... (Southwood 1977; Grime 1979). They also provide understanding of how functional diversity in the broad sense underpins ecosystem processes and the benefits that people derive from them (Chapin et al. 2000; Díaz et al. 2007), and offer the possibility of comparing distant ecosystems with very little t ...
CHAPTER 1  INTRODUCTION 1.1 Objectives, key questions and hypotheses
CHAPTER 1 INTRODUCTION 1.1 Objectives, key questions and hypotheses

... On a more global scale, Douglas Larson and his team at the University of Guelph, Canada, formed an interdisciplinary research group in 1985, focusing mainly on the function and structure of cliff ecosystems with the emphasis in the northern hemisphere. In 2000, Douglas Larson, Uta Matthes and Peter ...
Weeds of the Sydney West Region
Weeds of the Sydney West Region

... Biocontrol is important, but is also expensive and needs to be co-ordinated closely to ensure that maximum success is obtained in establishing the agent and controlling the weed. Biocontrol is not appropriate for use on individual properties. For more information, contact your local council. ...
Chapter 22: The Diversity of Plants
Chapter 22: The Diversity of Plants

... As with most vascular plants, it is the sporophyte generation of the fern that has roots, stems, and leaves. The part of the fern plant that we most commonly recognize is the sporophyte generation. The gametophyte in most ferns is a thin, flat structure that is independent of the sporophyte. In most ...
< 1 ... 41 42 43 44 45 46 47 48 49 ... 316 >

Leaf



A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features. In most plant species, leaves are broad and flat. Such species are referred to as broad-leaved plants. Many gymnosperm species have thin needle-like leaves that can be advantageous in cold climates frequented by snow and frost. Leaves can also have other shapes and forms such as the scales in certain species of conifers. Some leaves are not above ground (such as bulb scales). Succulent plants often have thick juicy leaves, but some leaves are without major photosynthetic function and may be dead at maturity, as in some cataphylls, and spines). Furthermore, several kinds of leaf-like structures found in vascular plants are not totally homologous with them. Examples include flattened plant stems (called phylloclades and cladodes), and phyllodes (flattened leaf stems), both of which differ from leaves in their structure and origin. Many structures of non-vascular plants, and even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), look and function much like leaves. The primary site of photosynthesis in most leaves (palisade mesophyll) almost always occurs on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of Eucalyptus palisade occurs on both sides and the leaves are said to be isobilateral.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report