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Delphinium geyeri is a species of plant in the Ranunculaceae family that is often called by the common names plains larkspur and foothills larkspur. It is infamous for causing the deaths of cattle grazing in the spring because it is especially poisonous before it flowers and so it is also called poisonweed by ranchers. It is a medium to tall ...
All parts of these plants are considered toxic to humans, especially the younger parts, [2] causing severe digestive discomfort if ingested, and skin irritation. [ 2 ] [ 3 ] [ 10 ] [ 64 ] Larkspur, especially tall larkspur, is a significant cause of cattle poisoning on rangelands in the western United States. [ 65 ]
Delphinium trolliifolium is a species of larkspur known by the common names poison delphinium, cow poison, and Columbian larkspur. It is native to Washington, Oregon, and northern California. [1] This wildflower reaches one half to just over one meter in height. It has large, shiny, deeply lobed leaves.
Delphinium tricorne, known by the common names dwarf larkspur [1] or spring larkspur, [2] is a species of flowering plant in the Ranunculaceae (buttercup) family. It is native to the central and eastern United States, where it is the most common Delphinium found.
Delphinium hesperium is a species of larkspur known by the common name foothill larkspur. It is also sometimes called western larkspur and coastal larkspur , but these names are less specific since other species share them.
Delphinium nudicaule, known by the common names canyon larkspur, red larkspur, orange larkspur, and canyon delphinium, is a flowering herbaceous perennial plant in the buttercup family Ranunculaceae. It is native to low-elevation canyons and slopes, foothills, and mountain ranges of California, US, from the Sierra Nevada to the California Coast ...
Delphinium glaucum, known by the common names Sierra larkspur, mountain larkspur, and glaucous larkspur, is a species of wildflower in the genus Delphinium, which belongs to the buttercup family, Ranunculaceae. It is native to western North America from Arizona to Alaska, growing in moist mountainous environments such as riverbanks and meadows.
Delphinium grandiflorum is a species of Delphinium known by the common names Siberian larkspur and Chinese delphinium. It is native to Russia and China. There are several popular cultivars in several colours which are grown as ornamental plants, including 'Blue Butterfly', 'Summer Morning', 'Blue Mirror', and 'Summer Stars'. Like many other ...