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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.

 

VERBENACEAE VERVAIN FAMILY

Dieter H. Wilken


Annual to shrub [tree], generally hairy. Leaf: cauline, opposite, generally toothed; stipules 0. Inflorescence: raceme, spike, or head, generally elongated in fruit; bract generally 1 per flower. Flower: bisexual; calyx generally 4–5-toothed; corolla 4–5-lobed, radial to bilateral, salverform to 2-lipped; stamens 4–5 (if 4, generally in unequal pairs), epipetalous; ovary superior, 2- or 4-lobed, generally 2- chambered, style 1, often with 2 unequal lobes, only 1 stigmatic, lateral. Fruit: 2 or 4 nutlets, drupe-like, or capsule.
± 31 genera, ± 920 species: especially America tropics. Some cultivated (Lantana, Verbena, Vitex); some weedy worldwide (Lantana); some used for wood (Tectona, teak). Avicennia included in Acanthaceae. [Marx et al. 2010 Amer J Bot 97:1647–1663] —Scientific Editor: Bruce G. Baldwin.

Key to Verbenaceae

1. Annual to per

2. Calyx 2–4-toothed, ± compressed; corolla ± 2-lipped; nutlets 2 ..... PHYLA

2' Calyx 5-toothed, cylindric; corolla generally ± radial; nutlets 4 ..... VERBENA

1' Shrub

3. Inflorescence longer than wide; corolla 2.5–3.5 mm, white ..... ALOYSIA

3' Inflorescence wider than long; corolla 8–12 mm, yellow to purple ..... [LANTANA]

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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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