Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Lauramay T. Dempster (except as specified)

Annual, perennial herb, sometimes strongly scented; odor generally disagreeable
Leaves simple, pinnately lobed, or compound; petioles sometimes sheathing; basal ± whorled; cauline opposite, petioled to sessile
Inflorescence: cyme, panicle, or head-like, generally ± dense
Flowers generally bisexual; calyx fused to ovary top, limb 0 or highly modified (if present, lobes generally 5–15, coiled inward, becoming plumose, pappus-like, spreading in fruit); corolla radial to 2-lipped, lobes generally 5, throat generally > lobes, > tube, base generally spurred or swollen, tube slender, long or short; stamens generally 1–3, epipetalous; ovary inferior, chamber generally 1 (sometimes 3 but 2 empty or vestigial)
Fruit: achene, smooth, ribbed, or winged
Genera in family: ± 17 genera, 300 species: generally temp, worldwide except Australia. Some species cultivated (Centranthus ), some medicinal (Valeriana )
Reference: [Ferguson 1965 J Arnold Arbor 46:218–225]


Annual, perennial herb (in CA)
Stems 1–many; base sometimes woody
Leaves generally cauline, simple, entire, toothed, or lobed
Inflorescence: cyme, clustered, dense, terminal or axillary
Flower: calyx lobes 5–15, coiled inward, becoming plumose, spreading and persistent in fruit; corolla ± funnel-shaped, lobes ± unequal, spreading, tube long, slender, long-spurred; stamen 1
Fruit ± compressed; inner surface 1-veined, outer surface 3-veined
Species in genus: 12 species: Medit
Etymology: (Greek: spurred flower)


C. ruber (L.) DC.


Plant glabrous, glaucous; base generally woody
Stem decumbent to erect, simple or branched, 3–9 dm, hollow
Leaves 5–8 cm; lower petioled; upper sessile; blades widely oblong to elliptic-lanceolate, acute to rounded, entire
Inflorescence: flowers many
Flower: corolla 14–18 mm, generally purplish red, sometimes lavender or white; spur 2 X ovary length
Fruit 3–4 mm, glabrous
Chromosomes: 2n=14
Ecology: Disturbed urban places, rock or wall crevices, roadsides
Elevation: < 200 m.
Bioregional distribution: s North Coast, Great Central Valley, Central Coast, San Francisco Bay Area, cultivated elsewhere
Distribution outside California: native to Mediterranean Europe

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bioregional map for CENTRANTHUS%20ruber being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Centranthus ruber
Retrieve dichotomous key for Centranthus
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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