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purple pampas grass Crataegus monogyna: common hawthorn Cyperus rotundus: coco-grass Cytisus scoparius: common broom Cytisus striatus: hairy-fruited broom Daphne laureola: spurge-laurel Egeria densa: large-flowered waterweed Elaeagnus angustifolia: Russian olive Euphorbia esula: green spurge Euphorbia myrsinites: myrtle spurge Fallopia ...
Citronella grass: repels insects, may deter cats [5] Clovers: repel aphids and wireworms [3] Common lantana: repels mosquitoes [1] Coriander: repels aphids, Colorado potato beetle, and spider mites [3] Cosmos: repel the corn earworm: Crown imperial: repel rabbits, mice, moles, voles and ground squirrels [6] Dahlias: repel nematodes [2] Dill
Pleuropogon oregonus is a rhizomatous perennial grass, producing stems up to 90 [2] to 95 [3] centimeters tall. The erect stems are spongy in texture. The ligule may be a centimeter long. The leaves are up to 17 centimeters long. The inflorescence is a raceme bearing 6, 7, or 8 spikelets. The spikelets are up to 4 or 5 centimeters long and ...
Deer fern False Solomon's seal Giant chain fern Oregon iris Salal Wild ginger. This is a list of plants by common name that are native to the U.S. state of Oregon. Adobe parsley; Alaska blueberry; American wild carrot; Austin's popcornflower; Awned melic; Azalea; Azure penstemon; Baby blue eyes; Baldhip rose; Beach strawberry; Beach wormwood ...
Staminate flower heads have stamens surrounded by whitish or purplish florets. Pistillate flower heads have fruit-yielding ovules surrounded by many phyllaries and fewer, smaller florets. [2] The pistillate flowers are wind pollinated, [9] [10] and the fruits develop. They are burs, sometimes adorned with knobs, wings, or spines. [2]
The flowers should be dried and then crushed and mixed with water. Pyrethroids are synthetic insecticides based on natural pyrethrum ( pyrethrins ); one common example is permethrin . Pyrethrins are often sold in preparations that also contain the synthetic chemical piperonyl butoxide , which enhances the toxicity to insects and is faster ...
Each spikelet may be up to 2.5 centimeters long and may contain up to 14 flowers. As the spikelets develop the stem may bend over or nod, so that the spikelets point downward. The other species of Pleuropogon in Oregon is Pleuropogon oregonus. They can differentiated by height, Pleuropogon refractus is taller, and they have different ranges.
It has piercing-sucking mouthparts and has become a serious pest on small fruits and vegetables in North America. It is considered a highly polyphagous species and feeds on over half of all commercially grown crop plants, but favors cotton, alfalfa, beans, stone fruits, and conifer seedlings. [ 1 ]
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