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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.


Annual [perennial herb, shrub], generally scented. Stem: erect. Leaf: pinnately divided or compound (in California), opposite throughout or distal alternate, sessile or petioled, dotted with embedded oil glands. Inflorescence: heads generally radiate, peduncled, 1 or in terminal cyme-like clusters; involucre cylindric to bell-shaped; phyllaries in 1 series, equal, fused, gland-dotted; receptacle flat or rounded, epaleate. Ray flower: (0)1–many; corolla white to yellow, orange, or brown; style tips long, tapered. Disk flower: 3–many; corolla yellow to orange or brown. Fruit: cylindric; pappus of scales, sometimes with 1 or more awns.
± 50 species: North America, South America. (Possibly for the Etruscan god Tages) TOXIC to root-parasite nematodes. [Strother 2006 FNANM 21:235–236] Tagetes erecta L. (heads 1–few, generally large; involucre widely cylindric or bell-shaped, 13–19 mm; ray flowers 8–many) a waif in disturbed places.

Key to Tagetes

1. Heads 1–few, generally large; involucre widely cylindric or bell-shaped, 13–19 mm; ray flowers 8–many ..... [T. erecta]

1' Heads many, small; involucre narrowly cylindric, 7–10 mm; ray flowers 1–3 ..... T. minuta


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [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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