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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; hairs simple, or stalked-forked. Stem: prostrate to erect, branched at least distally. Leaf: basal not rosetted; proximal cauline deeply pinnately lobed, lateral lobes entire to dentate or lobed; distal short-petioled to sessile, less divided, not basally lobed. Inflorescence: bracted. Flower: sepals oblong, erect to ascending, base not sac-like; petals obovate to oblanceolate or spoon-shaped, yellow or occasionally tinged purple, short-clawed. Fruit: silique, linear to oblong, or obconic silicle, dehiscent, unsegmented, flat perpendicular to septum (or septum 0); valves 2 or 4. Seed: 4–70, 1 or 4 rows per chamber; wing 0.
4 species: California, Baja California, Chile. (Greek: keeled fruit) [Al-Shehbaz 2003 Novon 13:392–395]
1. Fruit obconic, 0.4–0.5 cm, 4–8-seeded; valves thick-leathery, tubercled near tip ..... T. californicum
1' Fruit linear or oblong, 0.9–7 cm, 25–70-seeded; valves thin-leathery, smooth throughout
2. Fruit oblong, 0.9–2 cm, (3)4–5 mm wide, length (1.6)2.8–5 × width; valves (2)4 ..... T. capparideum
2' Fruit narrowly linear, (2.5)3–6(7) cm, 1.5–2(3) mm wide, length 13–46 × width; valves 2 ..... T. gracile
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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