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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.

 

SIDA

Steven R. Hill


Annual [perennial herb, shrub], [glabrous or] hairy. Leaf: petioled to subsessile; blade generally unlobed (to palmate-lobed), generally dentate. Inflorescence: flowers 1–several in leaf axils; flowering stalks often jointed; bractlets 0. Flower: petals pale- to orange-yellow [white]; stigmas head-like. Fruit: segments generally 5–15, indehiscent, side walls firm, persistent, beaks generally 2, prominent. Seed: 1 per segment, not enclosed by net-veined envelope.
150 species: tropics, subtropics, especially America. (Greek: used by Theophrastus for other plant, applied to these by Linnaeus) [Fryxell 1988 Syst Bot Monogr 25:373–412] Sida abutifolia Mill. reported as possibly naturalized in California.

Key to Sida

1. Fruit segments 10–14; leaves generally diamond-shaped; flowering stalks 1–3 cm; petioles without tubercle ..... [S. rhombifolia]

1' Fruit segments 5; leaves generally cordate or subcordate; flowering stalks generally < 1 cm; petioles generally with tubercle at base ..... [S. spinosa]

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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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