Jepson Flora Project: Jepson Interchange    

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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.



Elizabeth McClintock

Annual, perennial herb, shrubs, trees
Stem angled or cylindric
Leaves simple, entire, generally opposite, sometimes alternate or whorled
Inflorescence: raceme, spike, or panicle, terminal, or axillary clusters with 1–several flowers
Flower bisexual, generally radial; hypanthium cylindric to bell-shaped, generally membranous, persistent in fruit; sepals 4–6, generally persistent, appendages 3–5 or 0, alternate sepals; petals, stamens inserted on inner hypanthium; petals 4–6 or 0, alternate sepals, deciduous; stamens generally = or 2 X petals, included or exserted; ovary superior, chambers 2–6, style generally slender, stigma head-like
Fruit: capsule, opening by valves from top, splitting sometimes irregular or 0
Seeds 3–many
Genera in family: ± 25 genera, 450 species: temp, tropical, generally in wet habitats. Some ornamental or cultivated for medicine, dyes
Reference: [Graham 1964 J Arnold Arbor 45:235–250]


Stem prostrate to erect, glabrous
Leaves opposite, 4-ranked, sessile, linear to oblanceolate, generally with basal ear-like lobes
Inflorescence: cluster, axillary; flowers 3–10; bractlets 2, inconspicuous
Flower radial; hypanthium bell- to urn-shaped, ± spheric in fruit; sepals 4, appendages < or ± = sepals, thick, horn-like; petals (0)4; stamens 4(8), included or exserted
Fruit ± spheric, irregularly dehiscent
Seeds many, ± 1 mm
Species in genus: ± 25 species: temp, tropical
Etymology: (Paul Ammann, Germany, 1634–1691)
Reference: [Howell 1985 Wasmann J Biol 43:72–74]


A. coccinea Rottb.

Stem decumbent to erect, 1–10 dm, solitary or branched at base
Leaf 2–8 cm, 2–15 mm wide, linear to narrowly lanceolate
Inflorescence compact; flowers 3–5; lower peduncles 3–5(9) mm
Flower: hypanthium urn-shaped; petals 3–4(5) mm, obovate, deep rose-purple; stamens 4(7), exserted in flower, anthers deep yellow
Fruit 3–5 mm diam
Chromosomes: n=33
Ecology: Wet places, drying ponds, lake and creek margins
Elevation: < 300 m.
Bioregional distribution: Cascade Range Foothills, c&s Sierra Nevada Foothills, Great Central Valley, San Francisco Bay Area, Southwestern California, Sonoran Desert
Distribution outside California: to e US, C.America
Flowering time: Jun–Aug
Synonyms: A. auriculata Willd. misapplied

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