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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.



James L. Reveal & Thomas J. Rosatti

Annual, generally spreading, glabrous or glandular. Leaf: basal, linear to narrow, hairy, glandular, awns 0; ocreae 0. Inflorescence: terminal, cyme-like; peduncle erect to spreading; involucre 1, tubular, teeth 5(6), awned. Flower: 2–5(10), hairy, glandular; perianth white to rose or green-yellow to red, lobes 6, 3-lobed to fringed; stamens 9. Fruit: brown, obconic, glabrous; embryo curved.
3 species: western North America. (Greek: star case, for involucre)

Key to Sidotheca

1. Involucre funnel-shaped, white-margined, teeth fused 3/4; perianth lobes with 3–5 fringed lobes ..... S. emarginata

1' Involucres narrowly to widely obconic, 1-colored, teeth fused ± 1/2; perianth lobes 3-lobed.

2. Flower 1–2 mm, green-yellow to ± red; perianth lobed 1/5; bract awns 0.2–0.5 mm ..... S. caryophylloides

2' Flower 2.5–4 mm, white to pink or ± red; perianth lobed 1/3–1/2; bract awns 0.8–1 mm ..... S. trilobata


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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