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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.

 

ECHIUM
Annual, biennial, [perennial herb], shrub; strigose to bristly-hairy. Leaf: basal and cauline, linear to lanceolate, entire. Inflorescence: panicle-like cymes, terminal; branches 3–many, ± spike-like. Flower: radial to ± bilateral; calyx deep-lobed, often longer in fruit; corolla throat straight or ± curved, lobes equal or not; stamens 5, attached below mid-tube, included or exserted; style exserted. Fruit: nutlet erect, short, ovate, 3-angled, scar basal, flat.
40 species: southern Eurasia, Africa. (Greek: viper, from nutlet shaped like viper's head) Several entities cultivated for ornamental, especially on California coast, some potentially naturalized, some may be hybrids.
Unabridged references: [Bramwell 1972 Lagascalia 2:37–115]

Key to Echium

1. Annual, biennial; corolla limb 18–30 mm diam; lower 2 stamens short-exserted ..... E. plantagineum

1' Shrub; corolla limb 9–13 mm diam; all stamens long-exserted

2. Plant long-lived, many-branched; basal rosette 0; flower ± radial, corolla tube ± = calyx; nutlet black, fine-tubercled ..... E. candicans

2' Plant short-lived, once-flowering, generally unbranched; basal rosette present; flower ± bilateral, corolla tube 2+ × calyx; nutlet ± brown, prickly ..... E. pininana

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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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