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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual, perennial herb, subshrub, [shrub, tree], glabrous or hairy. Stem: often forked. Leaf: opposite, sessile or petioled, pairs generally unequal; blade generally entire. Inflorescence: generally forked; spike, head-like cluster, or umbel, flowers rarely 1, bracts forming a calyx-like involucre or not. Flower: bisexual, generally ± radial (bilateral), sometimes cleistogamous in some genera; perianth of 1 whorl, generally petal-like, bell- to trumpet-shaped, base hardened, tightly surrounding ovary in fruit, lobes 3–5, generally notched to ± lobed; stamens 1–many; ovary superior (appearing inferior due to hardened perianth base), style 1. Fruit: achene in hardened perianth base; round to ± flat; smooth, angled, ribbed, or winged; glabrous, hairy, or glandular.
30 genera, 350 species: warm regions, especially America; some ornamental (Bougainvillea; Mirabilis, four o'clock). [Spellenberg 2003 FNANM 4:14–17] —Scientific Editor: Thomas J. Rosatti.
Key to Nyctaginaceae
Annual, perennial herb. Stem: prostrate to erect; internode often with sticky region. Leaf: petioled; blade 1–6 cm, paler beneath, often brown-dotted. Inflorescence: panicle-like, branches ending in umbel, spike-like raceme, or paired or solitary flowers; bracts 1–3, free, not forming involucre. Flower: closing by evening; perianth bell-shaped, tube < 5 mm, limb < 3 mm; stamens 1–5; stigma ± spheric, generally exserted. Fruit: < 4 mm, club-shaped; ribs 4–5; wings 0.Key to Boerhavia
± 40 species: warm regions worldwide. (H. Boerhaave, Dutch botanist, 1668–1738) [Spellenberg 2003 FNANM 4:17–28]
Annual. Stem: decumbent to erect, < 8 dm, puberulent. Leaf: blade lanceolate to ovate-triangular, ± acute. Inflorescence: spike-like raceme; bracts << fruit, deciduous. Flower: < 1.5 mm; perianth pale pink to white. Fruit: 2.5 mm, glabrous; narrow, wrinkled between generally 5 wide ribs; tip rounded to ± truncate.
Gravelly hillsides, washes; < 1150 m. Channel Islands (possibly introduced), Desert Mountains (Clark Mtn Range), Sonoran Desert; to Arizona, Mexico. Boerhavia coulteri var. coulteri expected as agricultural weed in southern California. Sep–Nov [Online Interchange]
Previous taxon: Boerhavia coccinea
Next taxon: Boerhavia diffusa
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 8 2014
Citation for this treatment: [Author of taxon treatment] 2012. Boerhavia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=81377, accessed on Mar 8 2014
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