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One of the most alergic plants. (Ambrosia artemisiifolia)
Flowering ragweed (Ambrosia artemisiifolia) plant growing outside, a common allergen
Bush of ragweed (ambrosia), dangerous allergenic plant
Ambrosia dumosa, the burro-weed or white bursage, a North American species of plants in the sunflower family  and found in Death Valley National Park, California. Asteraceae.
Wild plants blowing in the wind with a blurred background on a sunny morning
Dozens of Lamb's Ear flowers, Stachys byzantina, are pictured, backlit by the sun in a mountain garden.  These plants are drought tolerant, and their leaves and stalks are fuzzy and soft; hence the common name of Lamb's Ear.  Focus is on the pink flowering plant in the left center of the image.
In summer, ragweed (Ambrosia artemisiifolia) grows in the wild
Close-up of lemon scented verbena flowers grown in a garden.
ragweed
Summer flowering tall plant.
Green bracted immature utricle fruit of Fourwing Saltbush, Atriplex Canescens, Amaranthaceae, native dioecious perennial deciduous woody shrub in Joshua Tree National Park, Southern Mojave Desert, Summer.
Plant in Etosha National Park at Kunene Region, Namibia
Artemisia vulgaris plant also known a s wormwood or mugwort.\nMedium to tall, somewhat hairy, tufted perennial, slightly aromatic; stems erect, often reddish or purplish, with a white pith.
Bush with thorns and white flowers seen in the Kruger National Park in South Africa
Natural closeup on a flowering rampion or corn mignonette wildflower, Reseda phyteuma
Sagebrush Detail
Reseda luteola or Resedinine, Common names include dyer's rocket, dyer's weed, weld, woold, and yellow weed.
Wild purple sage growing in a meadow. Photographed in warm afternoon light in Southern California, USA.
Red flowering axillaterminal indeterminate racemose disciform head inflorescences of Coastal Sagebrush, Artemisia Californica, Asteraceae, native perennial gynomonoecious deciduous shrub in the Santa Monica Mountains, Transverse Ranges, Winter.
Atriplex hymenelytra, or desert holly, is silvery-whitish-gray shrub in the  \
A closeup of Xanthium Spinosum or Bathurst Burr, showing the sharp thorny spikes. An invasive pest weed, otherwise known as spiny cockleburr,
Chenopodium botrys - Ambrosia mexicana.
Cluster of white flowers in the sun
A handsome, carefree evergreen shrub with dense, spineless, thread leaf foliage on an upright, bushy form. The soft, narrow, dark green leaflets create a fern-like appearance. Bright yellow flower spikes appear in fall, followed by purple-blue berries. Use as a filler in borders and beds or as an accent.
Delight in the charming sight of beautiful yellow small flowers adorning their green branches, creating a vibrant and cheerful scene in nature's tapestry.
Lavender Croton (Croton gratissimus) at Etosha National Park in Kunene Region, Namibia
Green immature trichomatic indehiscent cypsela fruit of Silver Beach Ragbur, Ambrosia Chamissonis, Asteraceae, native perennial monoecious evergreen herb in Coastal Ventura County, Summer.
The Bigelow Sagebrush (Artemisia bigelovii) is a species of sagebrush found in arid and semi-arid regions of the western United States and Mexico.  It is native to the desert ecosystems, including areas of Arizona, California, Nevada, and Utah. The species typically thrives in dry, sandy, or rocky soils in desert and scrubland environments. It is well-adapted to arid conditions.  The Bigelow Sagebrush is a shrub with aromatic, silvery-gray foliage. The leaves are finely divided, giving the plant a feathery appearance. The overall shape of the shrub can vary, but it often has a rounded or spreading form.  Sagebrush species, including the Bigelow Sagebrush, play an important role in their ecosystems. They provide habitat and food for various wildlife, and their aromatic compounds can deter herbivores.  This Bigelow Sagebrush was photographed at Meteor Crater near Winslow, Arizona, USA.
Flower stalk of patchouly plant in backyard garden with plenty of copy space.
Lavender
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