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Annual to shrub [(± tree-like or climbing)], fleshy. Leaf: generally simple, alternate or opposite, in dense to open, basal (or terminal) rosettes or basal and cauline, not in rosettes, reduced distally or not, margin often ± red. Inflorescence: generally cyme, generally bracted. Flower: generally bisexual; sepals generally 3–5, generally ± free; petals generally 3–5, ± free or fused; stamens >> to = sepals, epipetalous or not; pistils generally 3–5, simple, fused at base or not, ovary 1-chambered, placenta 1, parietal, ovules 1–many, style 1. Fruit: follicles, generally 3–5. Seed: 1–many, small.
± 33 genera, ± 1400 species: ± worldwide, especially dry temperate; many cultivated for ornamental. [Eggli (ed.) 2003 Illus Handbook Succulent Plants 6 (Crassulaceae). Springer] Water-stressed plants often ± brown or ± red. Consistent terminology regarding leaves, bracts difficult; in taxa with rosettes (e.g., Aeonium, Dudleya, some Sedum), structures in rosettes are leaves, those on peduncles are bracts, and those subtending flowers are flower bracts; in taxa where inflorescence is terminal, rosette leaves may "become" bracts as stem rapidly elongates to form inflorescence. Seed numbers given per follicle. —Scientific Editor: Thomas J. Rosatti.
Key to Crassulaceae
[Perennial herb] to shrub. Leaf: rosettes near stem tips, leaves alternate, generally obovate to oblanceolate, ciliate [or not]. Inflorescence: terminal; branches many, flowers on 1 side. Flower: erect, calyx, corolla not circumscissile in fruit; sepals 7–11, ± fused basally; petals = sepals in number, ± free, > sepals, cream or bright yellow; stamens 2 × sepals in number; pistils erect, ± free. Seed: many, 0.4–0.6 mm, ellipsoid, striate, brown.Key to Aeonium
31 species: Africa, Yemen, Madeira, Cape Verde, especially Canary Islands. (Latin: name given to Aeonium arboreum by Dioscorides, Greek botanist)
Unabridged references: [Liu 1989 Special Pub Natl Mus Nat Sci Taiwan 3]
[Sub]shrub ± 7 dm, densely hemispheric. Stem: 3–10 mm diam. Leaf: rosettes generally open, < 10 cm diam, leaves 3–6 cm, 2–5 mm thick, obovate. Inflorescence: open, flat-topped to hemispheric. Flower: ± 1 cm wide; sepals 3–4 mm, 1.5–2 mm wide; petals lanceolate, 7–9 mm, 1.2–1.8 mm wide.
2n=72. Sea cliffs, dunes, or persisting from cultivation; < 100 m. c&s South Coast; native to Canary Islands. Apr–Jul [Online Interchange]
Previous taxon: Aeonium arboreum var. arboreum
Next taxon: Cotyledon
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 23 2014
Citation for this treatment: [Author of taxon treatment] 2013. Aeonium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12005, accessed on Nov 23 2014
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© 1957 Arthur H. Bazell, M.D.
|Geographic subdivisions indicated for the distribution of Aeonium haworthii|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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