A Guide to North Dakota Noxious and
... taproot. The leaves are alternate and both leaves and stems are covered with a thick layer of fine hairs. The plant bolts 2 to 6 feet tall and produces numerous, bright yellow, five-lobed flowers from June through August of the second year. Small dark seeds are contained in two chambered capsules an ...
... taproot. The leaves are alternate and both leaves and stems are covered with a thick layer of fine hairs. The plant bolts 2 to 6 feet tall and produces numerous, bright yellow, five-lobed flowers from June through August of the second year. Small dark seeds are contained in two chambered capsules an ...
The Dirty Dozen and Beyond - Water Resources Education
... for them to germinate and grow. The main pasture area should have few if any annual weeds. ...
... for them to germinate and grow. The main pasture area should have few if any annual weeds. ...
To the File
... hopes that they will perpetuate themselves through reseeding. Sometimes called the anise hyssop, its medium green, oval leaves are anise-scented and have been the basis of a tea. Numerous spikes have whorls of two-lipped blue flowers with bracts tinged with violet, somewhat resembling a bottle brush ...
... hopes that they will perpetuate themselves through reseeding. Sometimes called the anise hyssop, its medium green, oval leaves are anise-scented and have been the basis of a tea. Numerous spikes have whorls of two-lipped blue flowers with bracts tinged with violet, somewhat resembling a bottle brush ...
Biogeographic Insights in Central American Cycad Biology
... the isthmus where the Panama Canal is found, the topography is sinuous, being formed by rocks from the rising sea beds (Instituto Geográfico Nacional Tommy Guardia, 2007). Because of its geography, Panama has a typical tropical climate. Average temperature is 21.0°C at the lowest and 34.5°C at the h ...
... the isthmus where the Panama Canal is found, the topography is sinuous, being formed by rocks from the rising sea beds (Instituto Geográfico Nacional Tommy Guardia, 2007). Because of its geography, Panama has a typical tropical climate. Average temperature is 21.0°C at the lowest and 34.5°C at the h ...
plantlife id guide - Wild About Plants
... many plants of outstanding importance. These plants require poor soils and some disturbance to flourish. With the changes to Breckland habitats over the last 100 years, many plant species are on the edge of survival. ...
... many plants of outstanding importance. These plants require poor soils and some disturbance to flourish. With the changes to Breckland habitats over the last 100 years, many plant species are on the edge of survival. ...
SP242 Control of Non-native Plants in Natural Areas of Florida
... rangeland, and commercial forests and may be appropriate for vegetation management in natural areas in some situations. One important consideration is the degree of degradation of the area in question. Cultural practices may have impacts to all parts of the habitat—native species included. If the ha ...
... rangeland, and commercial forests and may be appropriate for vegetation management in natural areas in some situations. One important consideration is the degree of degradation of the area in question. Cultural practices may have impacts to all parts of the habitat—native species included. If the ha ...
A property owner`s guide to controlling erosion using native
... This guide is for general information and applications only and should not be construed as a substitute for site specific design and installation recommendations from professionals experts in vegetation ecology, geotechnical or civil/drainage engineering practices. The author makes no representation ...
... This guide is for general information and applications only and should not be construed as a substitute for site specific design and installation recommendations from professionals experts in vegetation ecology, geotechnical or civil/drainage engineering practices. The author makes no representation ...
monitoring system plant phenophase and phenological event
... aboveground buds with green tips, or new green or white shoots breaking through the soil surface. Growth is considered "emerging" until the first leaf has fully unfolded from that bud or shoot. In at least one location on the plant, a fully unfolded leaf is visible. For seedlings, consider only true ...
... aboveground buds with green tips, or new green or white shoots breaking through the soil surface. Growth is considered "emerging" until the first leaf has fully unfolded from that bud or shoot. In at least one location on the plant, a fully unfolded leaf is visible. For seedlings, consider only true ...
Nasturtiums, Pansies and More!
... Olympic Peninsula. They usually are deer resistant. Colors range from pale yellow to bold oranges and reds. Trailing nasturtiums, which grow 3- to 4-feet in length, look beautiful cascading over a terrace or down a hillside. Mounding varieties, which reach 8- to 24-inches in height, are dramatic as ...
... Olympic Peninsula. They usually are deer resistant. Colors range from pale yellow to bold oranges and reds. Trailing nasturtiums, which grow 3- to 4-feet in length, look beautiful cascading over a terrace or down a hillside. Mounding varieties, which reach 8- to 24-inches in height, are dramatic as ...
Assessing ecological specialization of an ant–seed dispersal
... central region of Peña Negra (Fig. 2). These populations cover much of the natural range of H. foetidus on the Iberian Peninsula, representing the diverse ecological conditions in which this species occurs. Wide ranges of habitats and ant communities are represented by these populations (Appendix B ...
... central region of Peña Negra (Fig. 2). These populations cover much of the natural range of H. foetidus on the Iberian Peninsula, representing the diverse ecological conditions in which this species occurs. Wide ranges of habitats and ant communities are represented by these populations (Appendix B ...
Black Flag - City of Mandurah
... Sprawling shrub or erect tree to 6 (rarely to 15) m high. Stems single or branched at base, bark grey with vertical cracking in older stems. Aromatic leaves 5-22cm long, with 5-17 (usually 7-9) glossy, green leaflets. Creamy flowers produced on inflorescence between leaf axils followed by showy bunc ...
... Sprawling shrub or erect tree to 6 (rarely to 15) m high. Stems single or branched at base, bark grey with vertical cracking in older stems. Aromatic leaves 5-22cm long, with 5-17 (usually 7-9) glossy, green leaflets. Creamy flowers produced on inflorescence between leaf axils followed by showy bunc ...
The phenology of growth and reproduction in plants
... may be strongest in harsh environments with a short growing season. For example, in alpine plant communities there may be a high level of selection in favour of early flowering in most species because of the restricted time available subsequently for seed maturation (Totland 1993). Smith-Ramírez & A ...
... may be strongest in harsh environments with a short growing season. For example, in alpine plant communities there may be a high level of selection in favour of early flowering in most species because of the restricted time available subsequently for seed maturation (Totland 1993). Smith-Ramírez & A ...
Adaptive advantages of myrmecochory: the predator
... (Fedriani et al. 2004). Systematic sampling with pit-fall traps showed that other seed predators such as granivorous ants or ground beetles were rare or absent at our study sites (Manzaneda unpubl.). The present study was conducted during June − July of 2003, coinciding with the H. foetidus seed she ...
... (Fedriani et al. 2004). Systematic sampling with pit-fall traps showed that other seed predators such as granivorous ants or ground beetles were rare or absent at our study sites (Manzaneda unpubl.). The present study was conducted during June − July of 2003, coinciding with the H. foetidus seed she ...
The Succulent Plant Page: Glossary of Botanical Terms
... Autotrophic - nutritionally independent of other organisms. Auxin - a group of plant hormones such as indole acetic acid, produced by the tips of growing shoots in plants, that regulate the amount, type, and direction of plant growth by stimulating elongation of cells rather than cell division. Auxi ...
... Autotrophic - nutritionally independent of other organisms. Auxin - a group of plant hormones such as indole acetic acid, produced by the tips of growing shoots in plants, that regulate the amount, type, and direction of plant growth by stimulating elongation of cells rather than cell division. Auxi ...
Chamal (Dioon edule Lindl.) in the State of San Luis Potosí, México
... an abundance of Dioon edule plants, as well as a high frequency of use of chamal for food, medicine, and ornamental and trade objects. Planned field routes were traversed in the company of male key informants that were selected on the basis of their knowledge, leadership, and moral influence on thei ...
... an abundance of Dioon edule plants, as well as a high frequency of use of chamal for food, medicine, and ornamental and trade objects. Planned field routes were traversed in the company of male key informants that were selected on the basis of their knowledge, leadership, and moral influence on thei ...
Acacia Cut - Publications
... grown here as cut flowers or foliage. Ironically, Acacia has proved successful in Europe, grown in southern France and Italy, and sold as a cut flower under the name of Mimosa. Its success as a cut flower in Europe indicates the huge potential of this genus as a commercial crop in Australia, particu ...
... grown here as cut flowers or foliage. Ironically, Acacia has proved successful in Europe, grown in southern France and Italy, and sold as a cut flower under the name of Mimosa. Its success as a cut flower in Europe indicates the huge potential of this genus as a commercial crop in Australia, particu ...
Adaptive advantages of myrmecochory: the predator
... remove the diaspore once it has fallen on the ground, or they may climb the plant to gather diaspores directly from dehiscing fruits. The diaspores are carried to the nest, where the elaiosome is removed and eaten; then, depending on the ant species, the intact seed may be discarded within the nest ...
... remove the diaspore once it has fallen on the ground, or they may climb the plant to gather diaspores directly from dehiscing fruits. The diaspores are carried to the nest, where the elaiosome is removed and eaten; then, depending on the ant species, the intact seed may be discarded within the nest ...
Adaptive advantages of myrmecochory: the predator
... remove the diaspore once it has fallen on the ground, or they may climb the plant to gather diaspores directly from dehiscing fruits. The diaspores are carried to the nest, where the elaiosome is removed and eaten; then, depending on the ant species, the intact seed may be discarded within the nest ...
... remove the diaspore once it has fallen on the ground, or they may climb the plant to gather diaspores directly from dehiscing fruits. The diaspores are carried to the nest, where the elaiosome is removed and eaten; then, depending on the ant species, the intact seed may be discarded within the nest ...
sericea lespedeza control - SDS
... introduced from Japan and planted for soil improvements, wildlife forage and cover. Once established Sericea lespedeza crowds out forage grasses and other native plants and develops extensive seed banks in the soil. Studies have shown the seeds may remain viable for 20 years or more. Left unchecked, ...
... introduced from Japan and planted for soil improvements, wildlife forage and cover. Once established Sericea lespedeza crowds out forage grasses and other native plants and develops extensive seed banks in the soil. Studies have shown the seeds may remain viable for 20 years or more. Left unchecked, ...
Angiosperm Morphology and Flowering 41-83
... * Their principal mode of nutrition is photosynthesis. (They contain chlorophyll a, as do all photosynthetic eukaryotes, and they contain chlorophyll b, as do Green Algae and a few other organisms.) Some plant responses overlap. Cold and drought seem to satisfy the same “need.” One can therefore “fo ...
... * Their principal mode of nutrition is photosynthesis. (They contain chlorophyll a, as do all photosynthetic eukaryotes, and they contain chlorophyll b, as do Green Algae and a few other organisms.) Some plant responses overlap. Cold and drought seem to satisfy the same “need.” One can therefore “fo ...
Sexual Reproduction in Flowering Plants
... plant. Plants which grow in marshy places are called Mangroves. In these plants when seeds fall on marshy places they cannot germinate because of high salinity and more water conditions. So in those plants, seeds germinate when they are still attached to the mother plant. As the chances are more for ...
... plant. Plants which grow in marshy places are called Mangroves. In these plants when seeds fall on marshy places they cannot germinate because of high salinity and more water conditions. So in those plants, seeds germinate when they are still attached to the mother plant. As the chances are more for ...
LEAFY COTYLEDON1, a Key Regulator of Seed Development, Is
... have ceased elongation and microphyll production (Figure 4B). They are quiescent developmentally and can be dispersed after being detached from the plant, retaining viability for approximately one year. Under appropriate conditions, bulbils can regenerate the adult plant through reactivation of shoo ...
... have ceased elongation and microphyll production (Figure 4B). They are quiescent developmentally and can be dispersed after being detached from the plant, retaining viability for approximately one year. Under appropriate conditions, bulbils can regenerate the adult plant through reactivation of shoo ...
video slide
... • Addressing the Problem of Transgene Escape – Perhaps the most serious concern that some scientists raise about GM crops is the possibility of the introduced genes escaping from a transgenic crop into related weeds through crop-to-weed ...
... • Addressing the Problem of Transgene Escape – Perhaps the most serious concern that some scientists raise about GM crops is the possibility of the introduced genes escaping from a transgenic crop into related weeds through crop-to-weed ...
Ecology of Banksia
The ecology of Banksia refers to all the relationships and interactions among the plant genus Banksia and its environment. Banksia has a number of adaptations that have so far enabled the genus to survive despite dry, nutrient-poor soil, low rates of seed set, high rates of seed predation and low rates of seedling survival. These adaptations include proteoid roots and lignotubers; specialised floral structures that attract nectariferous animals and ensure effective pollen transfer; and the release of seed in response to bushfire.The arrival of Europeans in Australia has brought new ecological challenges. European colonisation of Australia has directly affected Banksia through deforestation, exploitation of flowers and changes to the fire regime. In addition, the accidental introduction and spread of plant pathogens such as Phytophthora cinnamomi (dieback) pose a serious threat to the genus's habitat and biodiversity. Various conservation measures have been put in place to mitigate these threats, but a number of taxa remain endangered.