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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. 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.
Annual, perennial herb, occasionally strongly scented, odor generally unpleasant.
Leaf: simple to pinnately lobed or compound; petioles generally sheathing; basal ± whorled; cauline opposite, petioled to sessile.
Inflorescence: cyme, panicle, or head-like, generally ± dense.
Flower: generally bisexual; calyx fused to ovary tip, limb 0 or lobes generally 5–15, coiled inward, plumose in age, 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, fused to petals; ovary inferior, chamber generally 1, or occasionally 3 but 2 empty or vestigial.
Fruit: achene, smooth, ribbed, or winged.
± 17 genera, 300 species: generally temperate, worldwide except Australia. Some species cultivated (Centranthus), some medicinal (Valeriana). [Bell & Donoghue 2005 Organisms Diversity Evol 5:147–159] —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
1. Perennial; calyx lobes rolled inward, plumose in age, pappus-like in fruit
2. Corolla generally ± purple-red, spur 4–6 mm; stamen 1; cauline leaves entire, base occasionally with small lobes ..... CENTRANTHUS
2' Corolla white to pink, throat swollen at base, spur 0; stamens 3; cauline leaves pinnately lobed to compound ..... VALERIANA
1' Annual; calyx generally 0
3. St simple or unequally few-branched; corolla generally spurred; ovary 1-chambered ..... PLECTRITIS
3' St equally, repeatedly forked; corolla throat ± swollen at base, spur 0; ovary(2)3-chambered ..... VALERIANELLA
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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