AnatomyOrganismsDiseasesChemicals and DrugsPhenomena and ProcessesHealth CareGeographicals
AmbrosiaFlowersArtemisiaOphiostomatalesPollenRhinitis, Allergic, SeasonalBeetlesMeteorological ConceptsAir MovementsXylarialesCroatiaAllergensPollination
ArtemisiifoliaGenusASTERACEAETrifidaSpeciesDeciduousPlantsNorth AmericaRagweedsWeedyShrubNectarDeltoideaRacemesBloomsShrubsSpinesPistillateCause of allergiesStemsPerennialStaminatePollinatorsBouquet of flowersAllergiesFragrant flower paniclesCommonPollenPollinationBlossomsSpikesLeafFloralsFamilyFruitBloomOrganicMedicinallyFruitsLeavesPeriodsGoldenrodDenseLobesLongCloverPurplish
Artemisiifolia10
  • The name Ambrosia × helenae Rouleau applies to hybrids between A. artemisiifolia and A. trifida . (asu.edu)
  • I remember my friends and I stripping the green immature seeds from the spikes of broad-leaved plantain ( Plantago major ) and common ragweed ( Ambrosia artemisiifolia ) in mid-summer and throwing them at each other, or searching through the colonies of white clover ( Trifolium repens ) that grew on our lawn looking for a four-leaf clover. (vitalitymagazine.com)
  • Rather, they likely stem from another less showy plant that often grows in similar habitats Ambrosia artemisiifolia , Common ragweed. (ncsu.edu)
  • 1803), Ambrosia artemisiifolia L. subsp. (findmeacure.com)
  • diversifolia (Piper, 1837), Ambrosia artemisiifolia L. var. (findmeacure.com)
  • 1861), Ambrosia artemisiifolia L. var. (findmeacure.com)
  • octocornis ( Kuntze , 1891), Ambrosia artemisiifolia L. var. (findmeacure.com)
  • elatior f. villosa (Fernald & Griscom, 1935), Ambrosia artemisiifolia var. (findmeacure.com)
  • Ambrosia artemisiifolia is a summer annual herbaceous plant that is erect, with many branches (AWCNI, undated) and can reach heights between 1-2 metres (NRW, 2007) with a grooved, reddish, hairy stem ( Wittenberg , R. (ed.) 2005). (findmeacure.com)
  • An essential oil of Ambrosia artemisiifolia acts as an antimicrobial, having antibacterial and antifungal compounds. (findmeacure.com)
Genus3
  • Ambrosia trifida L. is the second alien species of the genus Ambrosia L., which is found to be naturalized in Bulgaria (AMBROSIA TRIFIDA (ASTERACEAE), A NEW NON-NATIVE SPECIES FOR THE BULGARIAN FLORA). (cal-ipc.org)
  • There are some 70 species of shrubs and small trees in the genus Buddleia, the best being Asian natives. (whiteflowerfarm.com)
  • Ragweed is a type of flowering plant belonging to the genus Ambrosia. (vetadvises.com)
ASTERACEAE1
  • Ambrosia salsola, commonly called cheesebush, winged ragweed, burrobush, white burrobrush,[citation needed] and desert pearl,[citation needed] is a species of perennial shrub in the family Asteraceae native to deserts of the southwestern United States and northwestern Mexico. (wikipedia.org)
Trifida5
  • Great Ragweed (Ambrosia trifida) is a severe allergen. (pollenlibrary.com)
  • Ambrosia trifida L. (asu.edu)
  • Ambrosia trifida may be no longer extant in British Columbia. (asu.edu)
  • A. trifida is a tall weedy annual, distinguished from other Ambrosia spp. (asu.edu)
  • Ambrosia is Greek for food of the gods, while trifida means cleft into three parts, referring to the leaf shape. (asu.edu)
Species13
  • This species, notable for its foul smell, easily hybridizes with the white bur-sage (Ambrosia dumosa). (wikipedia.org)
  • Goldenrods' precise blooming times depend on the species and your garden's location, but hybrid cultivars tend to flower more profusely and enjoy longer-lasting flower displays. (gardenguides.com)
  • Among scores of goldenrod species and dozens of cultivars, general flowering time occurs between midsummer and midfall in the United States. (gardenguides.com)
  • Long, hot, southern summers trigger some goldenrods to bloom in August, while the same species father north flowers the following month. (gardenguides.com)
  • Flowering periods vary significantly between goldenrod species and cultivars, with cultivars often blooming earlier and longer. (gardenguides.com)
  • Tiny ragweed flowers occur the same time as various goldenrod species, but they attract much less attention. (gardenguides.com)
  • Allergenic ragweed pollen is a major cause of allergies in Tucson because ragweeds ( Ambrosia species) are both numerous and common here. (fireflyforest.net)
  • Ambrosia dumosa a is a type of Drought Deciduous plant among the Microphyllous species. (wikipedia.org)
  • Conversely, evergreen plant species carry out abscission in a smaller scale continuously in any seasons throughout the year. (wikipedia.org)
  • Ambrosia confertiflora is similar, but that species is perennial, and has smaller burs (2-4 mm) with hooked spines (A. acanthicarpa has straight spines). (ngpherbaria.org)
  • Ambrosia psilostachya also appears similar, but that species is a perennial with running rootstock, and the fruits usually do not have spines on them. (ngpherbaria.org)
  • We have very little information on this species but suggest growing it in a sunny position in a well-drained soil. (findmeacure.com)
  • The pollen from the flowers of this species is an important cause of hay-fever in N. America. (findmeacure.com)
Deciduous3
  • Buddleia davidii and its hybrids are fountain-shaped deciduous shrubs that produce long panicles of tiny, fragrant flowers in summer. (whiteflowerfarm.com)
  • Deciduous fruiting shrub or small tree has striking displays of orange-red flowers in summer, followed by soft seeded, red, tangy fruit in early fa. (idiggreenacres.com)
  • deciduous shrub of western North America having spikes of pink flowers followed by round white berries. (wordinn.com)
Plants6
  • Plants flower on the current season's growth, and bloom more profusely if stems are pruned back to 12-24″ as new shoots emerge in spring. (whiteflowerfarm.com)
  • Goldenrod (Solidago L.) and ragweed (Ambrosia L.) are familiar plants to allergy sufferers. (ehow.com)
  • for flowering plants this means the design of their flowers. (desertmuseum.org)
  • Ragweed plants can grow up to several feet tall, and they produce small, greenish flowers that eventually develop into seeds. (vetadvises.com)
  • Pollinosis is called a seasonal Allergy that affects people during the flowering of some plants. (weaponews.com)
  • This article provides a brief introduction to botanical dermatology and highlights the small minority of plants that cause skin reactions. (medscape.com)
North America12
  • Tropicos The Plant List Mojave Desert Wildflowers, Pam MacKay, 2nd Ed. 2013, p. 314 Flora of North America Vol. 21 Page 12, Burrobush, Ambrosia salsola (Torrey & A. Gray) Strother & B. G. Baldwin, Madroño. (wikipedia.org)
  • small wolf native to western North America. (wordinn.com)
  • very small yellow-headed titmouse of western North America. (wordinn.com)
  • common anemone of eastern North America with solitary pink-tinged white flowers. (wordinn.com)
  • small short-eared burrowing mammal of rocky uplands of Asia and western North America. (wordinn.com)
  • ornamental evergreen shrub of Pacific coast of North America having dark green pinnate leaves and racemes of yellow flowers followed by blue-black berries. (wordinn.com)
  • common woodland herb of temperate North America having yellow nodding flowers and small round blue fruits. (wordinn.com)
  • common garden plant of North America having fragrant red or purple or yellow or white flowers that open in late afternoon. (wordinn.com)
  • yellow-flowered Eurasian glaucous herb naturalized in along sandy shores in eastern North America. (wordinn.com)
  • perennial shrub of North America having coarse tongue-shaped leaves and pale-blue to purple flowers. (wordinn.com)
  • annual weed of Europe and North America having a rosette of basal leaves and tiny flowers followed by oblong seed capsules. (wordinn.com)
  • an annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers. (wordinn.com)
Ragweeds3
  • Annual ragweeds (Ambrosia spp. (gardenguides.com)
  • Ragweeds are anemophilous (polinated by the wind) so their pollen is very small and light. (fireflyforest.net)
  • One spring, when the Triangle Burr Ragweeds (Ambrosia deltoidea) were in bloom, I was photographing desert wildflowers in Saguaro National Park West, and I kept accidentally brushing against these small, green-flowered shrubs which are very common there. (fireflyforest.net)
Weedy1
Shrub1
  • Ambrosia salsola is a shrub sometimes attaining a height of 150 cm (59 in). (wikipedia.org)
Nectar2
  • Goldenrod flowers contain nectar to attract pollinators, while ragweed flowers don't contain nectar, depending primarily on the wind for pollination. (ehow.com)
  • I used to love picking the little tubular flowers off the flower heads and eating them or sucking the nectar out of them. (vitalitymagazine.com)
Deltoidea3
  • Ambrosia deltoidea (Torr. (swbiodiversity.org)
  • Some specimens are intermediate for the char--acteristics that distinguish Ambrosia deltoidea and A. chenopodiifolia . (swbiodiversity.org)
  • Ambrosia is Greek for food of the gods, while deltoidea means triangular, like the fourth letter of the Greek alphabet, delta. (swbiodiversity.org)
Racemes1
  • the racemes of pendant male flowering heads which can look yellowish inside due to the color of the stamens, and late in the season, a few small spiny burs, 4-8 mm long, near the bottom of the racemes. (ngpherbaria.org)
Blooms5
  • Late-blooming goldenrods continue flowering until the first fall frost puts an end to their blooms. (gardenguides.com)
  • When early summer blooms have stopped, but early fall perennials aren't yet flowering, goldenrods carry the show. (gardenguides.com)
  • Often found growing side by side, goldenrod's showy flowers stand out against ragweed's pale blooms, causing it to be unfairly blamed for most pollen allergens. (ehow.com)
  • She didn't think they hurt the blooms, except for the years the infestation was so bad that the flower buds on both peonies and roses, started to discolor and failed to open fully. (planetnatural.com)
  • Therefore, the more carbon dioxide in the atmosphere, the better it grows and blooms ambrosia. (weaponews.com)
Shrubs1
  • Ambrosias are shrubs or herbs with unisexual flowering heads heads of all disk flowers, the female heads maturing into hard fruits or spiny burs. (asu.edu)
Spines1
  • Pistillate heads 1-flowered, the involucres 5-10 mm long, several-ribbed, with each rib ending in short spine, the spines forming a cycle around the stout, cone-shaped beak of the mature fruit. (asu.edu)
Pistillate3
  • All female (Pistillate) flower heads contain only one flower, while all male (staminate) heads may contain 5-15 flowers. (wikipedia.org)
  • Ray flowers are generally pistillate or sterile (occasionally lacking styles). (berkeley.edu)
  • Disciform heads superficially resemble discoid heads, with pistillate or sterile flowers that lack rays, together with or separate from disk flowers. (berkeley.edu)
Cause of allergies1
Stems5
  • A woody plant smaller than a tree, and usually with several stems from the same root. (pollenlibrary.com)
  • The most popular are varieties of B. davidii and its hybrids with long stems ending in panicles of flowers that are ambrosia to butterflies. (whiteflowerfarm.com)
  • Goldenrod flowers are bright yellow and grow in large masses resting on single stems. (ehow.com)
  • The flowers of ragweed are green to yellow and appear in smaller formations on branched stems. (ehow.com)
  • tip or remove new growth in early to mid spring for more flowering stems and a more compact plant. (bluestoneperennials.com)
Perennial1
Staminate2
  • Staminate heads 3-25 flowered, the involucres shallowly or obscurely 1-3 lobed, each lobe with a black nerve extending from the center to the margin. (asu.edu)
  • Disk flowers are generally bisexual and fertile but occasionally staminate with reduced ovaries. (berkeley.edu)
Pollinators2
  • Buzz™ Ivory-Perfect for large pots or smaller spaces in the garden, this compact Butterfly Bush produces lovely panicles of white blossoms that attract all kinds of pollinators. (whiteflowerfarm.com)
  • Goldenrod pollen is large in size and is meant to be carried by pollinators, whereas ragweed produces a greater amount of small-grained pollen meant to be carried by the wind. (ehow.com)
Bouquet of flowers2
Allergies1
  • Power allergens this little weed is superior to its dimensions: one plant can produce up to 1 billion pollen grains, to the detriment of those who suffer from pollen allergies. (weaponews.com)
Fragrant flower panicles1
  • With vibrant red-violet, fragrant flower panicles reaching up to 9" long, Buddleia Monarch® 'Queen of Hearts' is a showstopper for the late-season garden. (whiteflowerfarm.com)
Common2
  • The common name, Butterfly Bush, is inspired by the flocks of butterflies drawn to the flowers. (whiteflowerfarm.com)
  • Small grains in rotation will also suppress common ragweed if they are overseeded with clover. (findmeacure.com)
Pollen3
Pollination1
Blossoms1
Spikes1
  • Buzz™ 'Soft Pink'-Despite its compact size, this vigorous variety produces large, beautifully formed flower spikes. (whiteflowerfarm.com)
Leaf2
  • Numerous small, cuplike male flowers grow in spike-like clusters above the female heads growing in the leaf axils. (wikipedia.org)
  • The flowers and fruit of the plant grow in an axillary position in the angle between the leaf and the twig (see second image below). (medscape.com)
Florals1
  • Small opening on top allows for the display of dried florals. (cindyhsuzell.com)
Family1
Fruit2
Bloom1
  • It's not unusual for some types to bloom beginning in mid-to-late July or continue flowering well into October. (gardenguides.com)
Organic3
  • Organic shapes are hand carved from Ambrosia maple. (cindyhsuzell.com)
  • If you have bitter orange flowers at home, you can make your own organic orange blossom oil or neroli and orange blossom water. (sunwarrior.com)
  • Each hemp flower strain honors visionary organic farming and innovation in hand-trimming and slow curing. (cannaflower.com)
Medicinally1
Fruits3
  • It is covered in plentiful white or yellow flowers and then pearly, winged fruits in white, yellow, or pink. (wikipedia.org)
  • Fantastical fruits and flowers in gorgeous colours on a dark dramatic background! (spoonflower.com)
  • Ambrosia is Greek for food of the gods, while acanthicarpa means having thorny fruits. (ngpherbaria.org)
Leaves5
  • small leaves sometimes not lobed. (asu.edu)
  • They consist of the flower heads and the first pair of leaves that grow immediately below. (vitalitymagazine.com)
  • As indicated in the image, the plant is flowering after abscission as there are no leaves. (wikipedia.org)
  • Clusters of the green and brown critters could be seen tucked away where the chard leaves created little pockets for them to hide. (planetnatural.com)
  • The female flowers are located in the axils of the upper leaves, sessile, and inconspicuous in either small clusters or singly (Wittenberg, R. (ed.) 2005). (findmeacure.com)
Periods1
  • Red clover significantly loses its potency during periods with little sun and lots of rain. (vitalitymagazine.com)
Goldenrod3
  • August and September present the peak of goldenrod flowering in most locations. (gardenguides.com)
  • People wrongly assume the conspicuous goldenrod flowers are behind their hayfever, when ragweed is at fault. (gardenguides.com)
  • Selected because they exhibit sought-after characteristics such as seasonal color or prominent flowers, or because they fill a need in less than ideal growing situations, goldenrod cultivars can help round out a naturalized garden. (ehow.com)
Dense1
  • Petaless, dense fragrant tiny green-yellow flowers appear in axillary cymes in a long, terminal panicle in June-September. (ncsu.edu)
Lobes3
  • Green calyx with 5 lobes cups the flowers. (ncsu.edu)
  • A disk flower has a generally radial corolla, with a cylindric tube, expanded throat, and generally 5 lobes. (berkeley.edu)
  • A ray flower corolla is bilateral, generally with a slender tube and flattened petal-like ray (single lip composed of generally 3 lobes). (berkeley.edu)
Long1
  • And, like most fragrances, a little goes quite a long way: use too much and you've just ruined your drink or dish. (sunwarrior.com)
Clover2
  • In Ontario, red clover tends to begin flowering in late May or early June and continues to flower throughout July, sometimes into August. (vitalitymagazine.com)
  • It is sometimes confused with alsike clover ( Trifolium hybridum ), which has flower heads that are pink in the centre and white along the periphery. (vitalitymagazine.com)
Purplish1