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CACTACEAE CACTUS FAMILY

Bruce D. Parfitt, except as noted

Perennial herb, shrub, tree, generally fleshy. Stem: cylindric to spheric, or flat; surface smooth, tubercled, or ribbed (grooved); nodal areoles bearing flowers. Leaf: generally 0 or early-deciduous, flat to ± cylindric. Spines: areoles generally with central, radial spines, occasionally with glochids. Flower: generally 1 per areole, bisexual [unisexual], sessile, radial [bilateral]; perianth parts generally many [5], scale-like to petal-like; stamens many; ovary inferior [superior], style 1, stigma lobes generally several [many]. Fruit: dry to fleshy or juicy, indehiscent to variously dehiscent, spiny, scaly, or naked; tubercled or smooth. Seed: generally many, occasionally 0–few.
± 125 genera, ± 1800 species: America (especially deserts), Africa; many cultivated, some edible. [Parfitt & Gibson 2004 FNANM 4:92–257] Spines smaller, fewer (0) in shade forms; yellow spines blacken in age. Introduced species increasingly escape cultivation. Hybridization common in some genera. Taxa of Escobaria in TJM (1993) moved to Coryphantha. —Scientific Editors: Bruce D. Parfitt, Douglas H. Goldman, Bruce G. Baldwin.
Unabridged references: [Hunt 2006 The New Cactus Lexicon, DH Books, Milborne Port, England]

Key to Cactaceae

BERGEROCACTUS

1 sp. (A. Berger, German succulent specialist, 1871–1931)

B. emoryi (Engelm.) Britton & Rose GOLDEN-SPINED CEREUS
NATIVE
Shrub, thicket-forming, ascending to sprawling or decumbent, many-branched. Stem: < 2 m, 3–6 cm diam, cylindric, soft-fleshy, ± obscured by spines, generally not regularly segmented; ribs generally 12–18, prominent, tubercles ± 0. Spines: 30–45 per areole, < 2 mm diam, needle-like, straight or curved, yellow, darker in age, smooth; central spines 1–3, decurved, longest < 60 mm; radial spines straight. Flower: lateral to terminal, at distal margin of spine cluster, 3.5–5 cm, 2.5–4 cm diam; ovary glabrous, densely spiny, scales minute or none; outer perianth parts yellow, tips ± red, midveins green, inner perianth parts all yellow. Fruit: spheric, fleshy, dry in age, densely spiny, extruding seeds and pulp at tip. Seed: 3 mm, ± flat-obovoid, black, shiny.
2n=44. Sandy open hills, coastal only; < 100 m. South Coast (San Diego Co.), s Channel Islands; Baja California. Threatened by development, collecting, feral goats. May–Jun [Online Interchange] {CNPS list}
Unabridged synonyms: [Cereus emoryi Engelm.]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 25 2014
Citation for this treatment: [Author of taxon treatment] 2013. Bergerocactus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=15604, accessed on Oct 25 2014

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click for enlargement Bergerocactus emoryi
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© 2007 John M. Taylor

Geographic subdivisions indicated for the distribution of Bergerocactus emoryi 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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map of distribution 1
(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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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.