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Brodiaeoideae are a monocot subfamily of flowering plants in the family Asparagaceae, order Asparagales. They have been treated as a separate family, Themidaceae. They are native to Central America and western North America, from British Columbia to Guatemala. The name of the subfamily is based on the type genus Brodiaea. In molecular phylogenetic analyses, Brodiaeoideae is strongly supported as monophyletic. It is probably sister to Scilloideae. Recent treatments have divided Brodiaeoideae (or Themidaceae) into 12 genera. The monophyly of several of the genera remains in doubt. As currently

Rauhia is a genus of bulbous, perennial plants in the family Amaryllidaceae endemic to Peru.

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Cyrtanthus elatus, the Scarborough lily, is a bulbous flowering plant which originates from the Cape Province of South Africa. Other common names are fire lily and George lily. Cultivars of the Scarborough lily have flowers which may be bright red, orange, yellow, or occasionally pink or white. The stems can grow to a height of 2 ft (0.61 m). They are relatively easy to grow in a warm, sheltered, frost-free spot. Alternatively, they can be grown under glass in pots. They require either full sun or slight shade. They flower in late summer or early autumn. The Latin specific epithet elatus

Allium membranaceum is an uncommon species of wild onion known by the common name papery onion. It is endemic to California, where it grows in wooded areas in the southernmost Cascade Range, the northern Coast Ranges, and the Sierra Nevada foothills from Tulare County to Humboldt County. It is found on wooded slopes at elevations of 200–1400 m. Allium membranaceum grows from an egg-shaped bulb up to 1.7 cm long which is sometimes associated with a cluster of smaller bulbs. The stem reaches a maximum height near 40 centimeters and there are two or three long, flat leaves about the same length.

Allium siskiyouense is a North American species of wild onion known by the common name Siskiyou onion. It is native to the Klamath Mountains and nearby ranges of northern California and Oregon. It grows in serpentine and other rocky soil types. This small onion plant grows from a reddish-brown bulb 1 or 2 cm (1⁄3 or 2⁄3 in) long. It produces a short stem no more than 8 cm (3 in) long and two sickle-shaped leaves which are usually longer. The inflorescence contains up to about 35 flowers, each with dark-veined pink tepals around 1 cm (1⁄3 in) long and sometimes toothed at the tips.

Allium hoffmanii is a species of wild onion known by the common name beegum onion. It is native to northern California, where it grows in the serpentine soils of the local mountain ranges in Siskiyou, Humboldt, Trinity, Shasta, and Tehama Counties. This onion grows a short stem up to about 10 centimeters tall from a brown or reddish bulb one or two centimeters long. There is generally a single leaf which may be longer than the stem. The inflorescence is packed with up to 40 flowers, each about a centimeter long and pink or purple in color with greenish veining. The protruding stamens are

Allium melliferum is a species of plant in the amaryllis family and is native to Mexico.

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Hymenocallis choctawensis is a plant in the family Amaryllidaceae, with the common names Choctaw spiderlily and Florida panhandle spider-lily. It grows along streambanks and in swamp forests of western Florida, eastern Louisiana, and southern parts of Alabama, Georgia and Mississippi. The species is often misidentified as H. caroliniana or H. occidentalis. It can be distinguished from those species by its rhizomatous bulb and triangular bracts.

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Tristagma bivalve is a species of flowering plant in the family Amaryllidaceae. It is a perennial herb endemic to Chile, where it is distributed between the Atacama and Araucanía regions.