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|Family: Cactaceae||View Description||Dichotomous Key|
|Genus: Ferocactus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Ferocactus cylindraceus (Engelm.) Orcutt
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: e PR, 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
Jepson Online Interchange
Previous taxon: Ferocactus
Next taxon: Ferocactus viridescens
Citation for this treatment: Bruce D. Parfitt 2017. Ferocactus cylindraceus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=25765, accessed on April 29, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 29, 2017.