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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

ALYSSUM
Annual [perennial herb]; hairs stellate, occasionally also simple. Stem: 1–several. Leaf: entire. Flower: sepals erect to spreading, bases not sac-like; petals yellow to cream, occasionally white in age; filaments slender or winged, toothed or not. Fruit: silicle, round (oblong), dehiscent, unsegmented, flat parallel to septum, glabrous or hairy; stigma entire. Seed: 1–2(4)[8].
± 170 species: northern North America, Eurasia, northern Africa. (Greek: without rabies, supposed cure for hydrophobia and madness) Alyssum strigosum Banks & Sol. reports in California based on misidentified plants of Alyssum simplex.

Key to Alyssum

1. Sepals persistent in fruit; filaments slender, not winged or toothed ..... A. alyssoides

1' Sepals early-deciduous; filaments winged and/or toothed

2. Fruit glabrous (sparsely hairy), 2.5–4(4.5) mm ..... A. desertorum

2' Fruit hairy, (3.5)4–6.5(7) mm ..... A. simplex

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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