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Ferocactus cylindraceus
CALIFORNIA BARREL CACTUS

Higher Taxonomy
Family: CactaceaeView DescriptionDichotomous Key

Common Name: CACTUS FAMILY
Habit: 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.
Genera In Family: +- 125 genera, +- 1800 species: America (especially deserts), Africa; many cultivated, some edible. Note: 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.
eFlora Treatment Author: Bruce D. Parfitt, except as noted
Scientific Editor: Bruce D. Parfitt, Douglas H. Goldman, Bruce G. Baldwin, Thomas J. Rosatti.
Genus: FerocactusView DescriptionDichotomous Key

Common Name: BARREL CACTUS
Habit: Erect or leaning, branches 0, occasionally branched from tip-injury. Stem: (0)10--200(300) cm, 10--35 cm diam, depressed-spheric to short-columnar, hard, glabrous, not segmented; ribs 13--31, prominent; tubercles not conspicuous on ribs. Spines: [6]10--32 per areole, 2--4.5 mm wide, generally awl-shaped, generally flat, ringed with conspicuous ridges, straight to curved or +- hooked, some bristle-like; central spines generally 4 per areole. Flower: +- terminal, near distal edge of spine cluster, 3--6 cm diam; perianth yellow to red [or purple, or white with +- purple midstripes]; ovary glabrous, spines 0, scales numerous, generally rounded, margins minutely fringed or toothed. Fruit: spheric, ovoid, or cylindric, glabrous, spineless, dehiscent by basal pore. Seed: [1]1.5--3 mm, spheric to subreniform, pitted, black.
Species In Genus: 25 species: southwestern United States, Mexico. Etymology: (Latin: fierce cactus)

Ferocactus cylindraceus (Engelm.) Orcutt
NATIVE
Stem: taller than wide, spheric to columnar. Spines: 10--32, erect and spreading, longest generally recurved to +- hooked, hooked on immature plants, generally +- red [yellow], gray in age. Flower: inner perianth occasionally orange to red; style 12--20 mm, ovary 9--12 mm, scales fringed. Fruit: yellow. Seed: 1.5--3 mm. Chromosomes: 2n=22.
Ecology: Gravelly, rocky, or sandy areas; Elevation: 60--1500 m. Bioregional Distribution: D (esp e DMoj, w DSon); Distribution Outside California: to southwestern Utah, Arizona, northern Mexico. Flowering Time: Apr--May Note: Formerly recognized varieties untenable. Threatened by collecting; monitoring needed.
Synonyms: Echinocactus cylindraceus Engelm.; Ferocactus cylindraceus var. lecontei (Engelm.) Bravo; Ferocactus cylindraceus var. cylindraceus; Ferocactus acanthodes (Lem.) Britton & Rose, nom. rej., misappl.
Unabridged Note: The name Ferocactus acanthodes has been used for this sp. but its use is ambiguous because the type is lost and its identification is uncertain.
eFlora Treatment Author: Bruce D. Parfitt
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Citation for this treatment: Bruce D. Parfitt 2016. Ferocactus cylindraceus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=25765, accessed on February 10, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 10, 2016.


Ferocactus cylindraceus
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© 2005 James M. Andre
Ferocactus cylindraceus
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© 2013 Neal Kramer
Ferocactus cylindraceus
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© 2009 Keir Morse
Ferocactus cylindraceus subsp. cylindraceus
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© 2011 California Academy of Sciences
Ferocactus cylindraceus
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© 2010 Thomas Stoughton
Ferocactus cylindraceus
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© 2010 Neal Kramer

More photos of Ferocactus cylindraceus in CalPhotos


Geographic subdivisions for Ferocactus cylindraceus:
D (esp e DMoj, w DSon);
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.