ambrosia artemisiifolia


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ragweed

ragweed

Common allergen. Goldenrod is often blamed because it blooms right next to ragweed, but goldenrod is actually the antidote! Ragweed is all green, sometimes greyish-silver-green. Has distinct finger-like leaves with erect seed-pod spikes. Although many are allergic to ragweed, it is used by others for conditions like nausea, intestinal cramps, menstrual cramps and stroke. (tea from leaves and root) Highly astringent (stops bleeding). Seeds could be used as porridge or cereal.
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La difusion y la oviposicion de adultos de Ophraella communa Le-Sage (Coleoptera: Chrysomelidae) sobre Ambrosia artemisiifolia L.
Ragweed (Ambrosia artemisiifolia) pollen allergenicity: SuperSAGE transcriptomic analysis upon elevated C[O.sub.2] and drought stress.
Se trata de los pliegos VIT 75493 y VIT 75494, con material procedente de Portugalete (Vizcaya), que en realidad corresponden a la especie Ambrosia artemisiifolia. Lo mismo sucede con el pliego SANT 44001, de Rianxo (Coruna), asimismo perteneciente a esta ultima especie y no a Ambrosia tenuifolia.
The only one of 40 species that showed a significant increase in AIB with increasing fertilizer was Ambrosia artemisiifolia (linear regression: ln[[AIB.sub.Ambrosia]] = -0.03[2.sup.ns] + 0.030X; [r.sup.2] = 0.37, P [less than] 0.01; regression coefficient significant at P [less than] 0.001), and no species' AIB declined significantly with increasing fertilizer.
Three (Chrysopsis villosa, tribe Astereae, Artemisia vulgaris, tribe Anthemideae, and Ambrosia artemisiifolia, subtribe Ambrosiinae) are, or are closely related to, hosts of species in the slobodkini clade that includes O.
(Pennsylvania smartweed), Ambrosia artemisiifolia, and Chenopodium album (lamb's quarter).
This common pest is ragweed, Ambrosia artemisiifolia, commonly found growing along roadsides, in ditches and in waste places.
We designed the present study to examine the interactive effects of timing of dormancy release of seeds with low and high atmospheric C[O.sub.2] on biomass, reproduction, and phenology in ragweed plants (Ambrosia artemisiifolia L.), which produce highly allergenic pollen.
In this paper we first show leaf N distribution in the canopy of monospecific and mixed stands of two co-occurring annual species (Abutilon theophrasti and Ambrosia artemisiifolia) established under ambient (360 [[micro]liter]/L) and elevated (700 [[micro]liter]/L) C[O.sub.2] conditions.
These include one shift from Ambrosia artemisiifolia to Helianthus and four independent shifts from A.
Ragweed (Ambrosia artemisiifolia) is a weed of open disturbed ground that produces potent pollen allergens.