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ALLIACEAE ONION or GARLIC FAMILY

Dale W. McNeal

Perennial herb; bulb 1 or on rhizomes, reforming each year; bulblets at bulb bases or on rhizomes; outer bulb coat brown, red-brown, yellow-brown, or gray; inner coats generally white (pink, red, or yellow); onion odor, taste present (except Nothoscordum). Stem: scapose, cylindric, sometimes flat or triangular. Leaf: basal, sheathing stem, linear [or not], cylindric, channeled or flat, generally ± withering from tip by flowering. Inflorescence: umbel (1-flowered in Ipheion), bracts generally 2, splitting and appearing 2+ or not, ± fused, enclosing flower buds, scarious. Flower: perianth parts 6 in 2 petal-like whorls, ± free to fused in lower 1/3–1/2; stamens 6, fused to perianth, filaments widened at base, anthers attached at middle; ovary superior, 3-lobed, chambers 3, ovules 2+ per chamber, style 1, stigma entire or ± 3-lobed. Fruit: capsule, loculicidal. Seed: black, sculpture net-like, smooth, or granular.
13 genera, 750–800 species: worldwide. Many cultivated for food, ornamental. —Scientific Editor: Thomas J. Rosatti.

Key to Alliaceae

IPHEION STAR FLOWER
Perennial herb from deep, membrane-coated bulb, onion odor present. Leaf: several, basal, unkeeled. Inflorescence: scapose; flowers 1; bracts 2, fused at base. Flower: showy; perianth parts fused in lower 1/2, lobes spreading, ± equal; anthers attached at middle; style thread-like, stigma ± 3-lobed. Fruit: capsule.
± 6 species: southern South America. (Greek: origin obscure)

Previous taxon: Allium yosemitense
Next taxon: Ipheion uniflorum

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 21 2014
Citation for this treatment: [Author of taxon treatment] 2013. Ipheion, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9528, accessed on Oct 21 2014

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