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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.

 

LIGUSTICUM
Perennial herb, taprooted, glabrous to minutely scabrous. Stem: erect, leafy, conspicuously fibrous at base, generally branched. Leaf: blade oblong to round, ternately or pinnately compound or dissected, leaflets oblong to obovate, entire to deeply pinnately lobed, segments linear to oblong. Inflorescence: compound umbels; bracts generally 0; bractlets 0 or inconspicuous; rays, pedicels few to many, spreading-ascending. Flower: calyx lobes minute; petals wide, white [± pink]. Fruit: oblong to elliptic, ± compressed side-to-side; ribs ± equal, thread-like to narrowly winged; oil tubes generally several per rib-interval; fruit axis divided to base. Seed: face flat to concave.
± 25 species: Eurasia, North America. (Liguria, Italy, home of related Levisticum, lovage) [Leute 1970 Ann Naturhist Mus Wien 74:457–519] Genus and species poorly defined.

Key to Ligusticum

1. Herbage, inflorescence minutely scabrous or puberulent; fruit ribs thread-like, ± unwinged ..... L. apiifolium

1' Herbage, inflorescence glabrous; fruit ribs distinctly but narrowly thin-winged

2. Cauline leaves (1)2–3, ± = basal; rays generally 16–30; leaf segments generally wide, obtuse ..... L. californicum

2' Cauline leaves (0)1(2), << basal; rays generally 5–18; leaf segments generally narrow, acute ..... L. grayi

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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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