• 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
Complete 2016 Greenhouse Catalog
Complete 2016 Greenhouse Catalog

... Colors include: Lavender Shades Purple Shades -’Snow Crystals’ Large, pure white flowers. 4-6”H -’Snow Princess’ A breakthrough in breeding, being propagated vegetatively gives this plant a good tolerance to wind and rain. Strong, trailing growth makes it ideal for hanging baskets. They will ...
2006 Catalog - Pardee Tree Nursery
2006 Catalog - Pardee Tree Nursery

... ardee Tree Nursery, California’s Premier Tree Nursery, was established in 1982 in the beautiful Rancho Santa Fe area of San Diego County. Due to our rapid growth and customer demands, the nursery relocated in 1993 to a 310 acre park-like setting in the City of Oceanside. We are conveniently located ...
Plant Varieties Journal
Plant Varieties Journal

... propagative material for comparative testing provided that the material is used for no other purpose and all material relating to the variety is returned when the trial is complete. The expenses incurred in the provision of material for comparative trials is borne by those conducting the trials. As ...
control - Clallam County
control - Clallam County

... between brown knapweed (Centaurea jacea) and black knapweed (Centaurea nigra) can occur and can retain their intermediate form for several generations. Meadow knapweed grows 20 to 40 inches tall. The upright stem branches about half way up. ...
Microsoft Word Viewer 97 - Thesis, Final aug 2005 version1
Microsoft Word Viewer 97 - Thesis, Final aug 2005 version1

... such as D. phrynioides Hooker and D. praetermissa Bos are rhizomatous perennials. None of the Sansevieria species grow into massive trees like D. draco and its allies. The flower types occurring in Dracaena can be divided into three groups on the basis of their form. D. draco and its allies have da ...
48th Annual Spring Plant - Minnesota Landscape Arboretum
48th Annual Spring Plant - Minnesota Landscape Arboretum

... situations with glossy, evergreen leaves 2-3”. The flowers are greenish-purple or Interest in Shade Gardening continues to grow as more homeowners are finding brown. Easily propagated by division. their landscapes becoming increasingly shady because of the growth of trees and shrubs. Astilbe ‘Delft ...
5th-8th grade chaparral curriculum guide. This is the stand alone
5th-8th grade chaparral curriculum guide. This is the stand alone

... landscape with little green bundles of leaves. Other shrubs are completely burned up in the fire, but live on through the thousands of seeds they have produced over the years. The California Chaparral Institute ...
Flora Malesiana precursor For the treatMent oF - UvA-DARE
Flora Malesiana precursor For the treatMent oF - UvA-DARE

... thick. Lamina mostly oblong to elliptic to (subobovate) and usually constricted below in the lower part (subpandurate) or 3–5-lobed to -fid, distinctly palmate (with the basal vein(s) running into the lobes), often pinnate (the second or third pair of lateral veins running into the lobes), or subpalm ...
A re-evaluation of the ATP :NADPH budget
A re-evaluation of the ATP :NADPH budget

... For N assimilation and its associated respiratory activity, several metabolic alternatives must be considered ( Krömer, 1995). These are indicated on Fig. 1 by numbers, and are described in the legend. It is likely that these alternative pathways are simultaneously active, to some degree, under in ...
Palm parts - Sulawesi Language Alliance
Palm parts - Sulawesi Language Alliance

... In English, ‘sago palm’ refers most commonly to the plant METROXYLON SAGU Rottboell. However, at least fourteen other palms can be exploited for their starch, including the aforementioned sugar palm, and all of these can also be referred to in a more general way as sago palms or pohon sagu. Where th ...
Echinacea - Perennial Farm
Echinacea - Perennial Farm

... Echinacea purpurea ‘White Swan’ White Coneflower The white native Coneflower grows from 2–3' tall with the same large flowers as the purple form. They both thrive in hot, dry conditions and are happy in ordinary garden soil. Attractive to butterflies. Plant purple and white Coneflowers together in b ...
Some aspects of the biology of the lemon butterfly
Some aspects of the biology of the lemon butterfly

... native verbine food plants, while busily laying eggs. Citrus (Citrus spp. Rutaceae) cultivars infested by this pest include orange, lemon, lime, mandarin, tangerine, grape fruit, and pomolo. Most of these species of citrus are native to South East Asia. They are thorny, aromatic shrubs or small tree ...
LIST OF MAIN PLANTS AVAILABLE
LIST OF MAIN PLANTS AVAILABLE

... clusters, Sept–Dec. Grey leaves, blunt and overhead cover. Needs extra water over tips, furry. Very ornamental.species. summer. Light frosts only. Not drought hardy. Suits pots. Ground cover to low shrub 0.3-0.6mx1m. Prefers Reddish new growth. Profuse fluffy moist, well-mulched soils. Needs some ov ...
Nectria galligena - Apple Best Practice Guide
Nectria galligena - Apple Best Practice Guide

... natural openings such as bud scale, fruitlet scars, fruit scars and leaf scars. Newly exposed leaf scars are extremely susceptible to infection and spores landing on scars within 24 hours of leaf fall are readily drawn into the tracheids or water-conducting vessels of the shoot. Leaf scars become in ...
Total antioxidant activity, phenolic, flavonoid and ascorbic acid
Total antioxidant activity, phenolic, flavonoid and ascorbic acid

... The antioxidant studies of different vegetables in Nigeria have been done. This study focused on total antioxidant activity in Nigerian local vegetables (Table 2). Total antioxidant activity of the vegetables ranged from 22.15% ...
here - Suncrest Nurseries, Inc.
here - Suncrest Nurseries, Inc.

... Luna', selected recently at Suncrest, has large heads of beautiful soft yellow flowers. 'Red Beauty' is one of the smaller cultivars with attractive dark green, fernlike leaves. Its 18 inch stems carry crimson flower heads throughout the summer months. And 'Rosa Maria' is another Suncrest selection, ...
here - Suncrest Nurseries, Inc.
here - Suncrest Nurseries, Inc.

... Luna', selected recently at Suncrest, has large heads of beautiful soft yellow flowers. 'Red Beauty' is one of the smaller cultivars with attractive dark green, fernlike leaves. Its 18 inch stems carry crimson flower heads throughout the summer months. And 'Rosa Maria' is another Suncrest selection, ...
medicinal plants
medicinal plants

... What is left at present is only 8% as against a mandatory 33% of the geographical area. Many valuable medicinal plants are under the verge of extinction. The Red Data Book of India has 427 entries of endangered species of which 28 are considered extinct, 124 endangered, 81 vulnerable, 100 rare and 3 ...
Erysimum bulgaricum (Brassicaceae), a newly distinguished
Erysimum bulgaricum (Brassicaceae), a newly distinguished

... (1898) described Erysimum specimens morphologically well differentiated from the known Bulgarian Erysimums as E. goniocaulon Boiss. var. bulgaricum VELEN. The material had been collected by V. Stribrny from the Rhodopes in the vicinity of Assenovgrad. The plants are biennial, gray-green, with well d ...
ecological aspects of the cretaceous flowering plant
ecological aspects of the cretaceous flowering plant

... vary from slow-maturing species with individuals having life spans of centuries or millenia to annual herbs that complete generations in a single growing season. With the exception of high-latitude and montane conifer forests, most of the world’s major biomes, from wet tropical forest to temperate d ...
Physiology of Woody Plants, Third Edition
Physiology of Woody Plants, Third Edition

... plants grow. I therefore considered it important to bring up to date what is known about the physiology of woody plants. This volume was written for use as a text by students and as a reference for researchers and practitioners who need to understand how woody plants grow. For all who use the book, ...
physiology of woody plants - Roberto Cezar | Fisiologista Vegetal
physiology of woody plants - Roberto Cezar | Fisiologista Vegetal

... plants grow. I therefore considered it important to bring up to date what is known about the physiology of woody plants. This volume was written for use as a text by students and as a reference for researchers and practitioners who need to understand how woody plants grow. For all who use the book, ...
S-nitrosothiols regulate nitric oxide production and storage in plants
S-nitrosothiols regulate nitric oxide production and storage in plants

... Europe PMC Funders Author Manuscripts ...
(and print if you wish) a copy of the 2015 Seed
(and print if you wish) a copy of the 2015 Seed

... Most seeds are to be sown in spring and prefer a sunny position. Refer to the cultivation noted for those with different requirements. ...
Poison Hemlock Conium maculatum
Poison Hemlock Conium maculatum

... ornamental plant, poison hemlock has spread rampantly throughout North America. ...
< 1 ... 6 7 8 9 10 11 12 13 14 ... 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