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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



Dieter H. Wilken

Annual to tree, generally hairy
Leaves 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, epipetalous (if 4, generally in unequal pairs); 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
Genera in family: ± 90 genera, ± 1900 species: especially Am tropical. Some cultivated (Clerodendron , Lantana , Verbena , Vitex ); some weedy worldwide (Lantana ); some used for wood (Tectona , teak).


Annual to shrub
Stems often 4-angled; hairs generally short, stiff
Leaves reduced upward; blade entire to pinnately lobed
Inflorescence: spikes, often in panicle-like clusters, generally terminal, generally very long in fruit
Flower: calyx 5-ribbed, 5-toothed, hairs generally strigose or appressed; corolla 4–5-lobed, ± radial to bilateral and 2-lipped; stamens 4, paired; ovary 4-chambered, ovules 4, style 1, lobes 2, 1 tooth-like, 1 with ± spheric stigma
Fruit: nutlets 4, generally oblong
Species in genus: ± 250 species: temp, tropical Am, Medit Eur
Etymology: (Latin: ancient name)
Reference: [Umber 1979 Syst Bot 4:72–102; Barber 1982 Syst Bot 7:433–456]


V. hastata L.

Biennial or perennial herb 35–150 cm
Stems 1–2, erect, sparsely strigose
Leaf 9–15 cm, lanceolate, serrate, rough-puberulent, sparsely short-bristly, or ± scabrous; base acute; petiole 1–2.5 cm
Inflorescence: spikes 1–8 per cluster, 3–15 cm, 4–5 mm diam, dense; flower bract 2–3 mm
Flower: calyx 2.5–3 mm; corolla 2.5–5 mm, blue to violet
Fruit ± 2 mm
Chromosomes: 2n=14
Ecology: Wet places, ditches, marshes
Elevation: < 1300 m.
Bioregional distribution: Great Central Valley, Central Coast, San Francisco Bay Area, Modoc Plateau
Distribution outside California: to British Columbia, e N.America, Arizona
Synonyms: var. scabra Moldenke
Horticultural information: WET, SUN: 1, 2, 3, 7, 8, 9, 10, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24.

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