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Allium anceps, known as twinleaf onion [1] and Kellogg's onion, [2] is a species of wild onion native to the western United States. It is widespread in Nevada, extending into adjacent parts of California, Idaho, and Oregon. [2] It grows in barren clay and rocky soils. [2] [3] [4] Flowering plants
Allium amplectens, the narrowleaf onion, is a species of flowering plant. It is an onion native to the west coast of the United States, in Oregon, Washington State and California, also British Columbia in Canada.
Allium shevockii produces a bulb one to one and a half centimeters wide which may have one or two large daughter bulblets. Atop the stipe is an umbel of up to 30 flowers, each just over a centimeter wide. The six shiny tepals are maroon to rich pink in color and may be white near the bases. In a manner unique among the onions, the tepals are ...
Allium caeruleum (blue globe onion, blue ornamental onion, blue-of-the-heavens, blue-flowered garlic; syn. Allium azureum Ledeb.) is an ornamental bulbous plant of the onion genus, native to Central Asia (Kazakhstan, Kyrgyzstan, Siberia, Tajikistan, Uzbekistan, and Xinjiang). [3] [4] [5] In these regions, it is found on dry slopes, plains, and ...
The umbels are some 8–12 cm (3.1–4.7 in) in diameter, relatively small compared to the tall stems, hence the description 'drumstick allium'. Individual flowers, of which there are many, are a typical allium shape, with a superior ovary and six tepals of a lilac to purple colour, around 2.5 to 5 cm long; white forms are known.
[2] [1] [3] [4] [5] Allium polyrhizum produces clumps of many narrowly cylindrical bulbs, each generally less than 10 cm in diameter. Scape is up to 30 cm long, round in cross-section. Leaves are tubular, less than 1 cm across, shorter than the scape. Umbel is hemispheric with many densely packed flowers.
[2] [3] [4] The species is also cultivated as an ornamental in other regions, including in Europe. [5] Allium robinsonii produces 1–3 egg-shaped bulbs up to 2 cm long, but no underground rhizomes. The flowering stalks are relatively short for the genus, rarely more than 8 cm tall.