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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. Stem: 1–many, ± prostrate, densely tufted. Leaf: basal and cauline, alternate, crowded, lower ± oblanceolate, lobed, lobes rounded, toothed, margins ± white, crust-like. Inflorescence: heads liguliflorous, generally 1(2–3 in cyme-like clusters); involucre cylindric to urn-shaped; phyllaries in 2 series, outer few, linear, with expanded tips with crust-like margins; inner 7–12, equal, narrow; receptacle ± flat, epaleate. Flower: 7–18; ligule white to pale yellow, becoming pink-purple when dry, readily withering. Fruit: 4–5 mm, ± cylindric, often curved, obtusely 5-angled, abruptly short-beaked; ribs roughened, alternating with 5 rows of pits; pappus of many white bristles, outer falling separately, inner ± persistent.
2 species: western North America. (Greek: carved rib, from sculptured fruit) [Keil 2006 FNANM 19:361–362]
1. Ligules 4–10 mm, equaling involucre or exserted 1–5 mm ..... G. marginata
1' Ligules 15–25 mm, exserted 10–20 mm beyond involucre ..... G. setulosa
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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