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Cylindropuntia munzii
MUNZ'S CHOLLA

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: CylindropuntiaView DescriptionDichotomous Key

Common Name: CHOLLA
Habit: Shrub or small tree, erect to decumbent, many-branched. Stem: regularly segmented, segments generally < 50 cm, < 5 cm diam, cylindric, fleshy, glabrous; ribs generally 0; tubercles generally elongate. Leaf: conic to cylindric, deciduous. Spines: 1--many per areole, < 2 mm diam, generally needle-shaped, smooth, straight, tip smooth or barbed, epidermis separating as a papery sheath; central spines generally not distinct from radial spines; glochids generally numerous in each areole. Flower: lateral to terminal, from distal portion of areole, 1.8--8 cm diam; perianth yellow, yellow-green, orange-yellow, to bronze, pink, or red; ovary glabrous, spines 0--many, glochids many in each areole, scales 0. Fruit: indehiscent; spheric or cylindric to obconic, dry or fleshy to leathery in age, green to dark yellow, glabrous, spiny or spines 0. Seed: 1.9--7 mm, flattened to +- spheric, surface smooth to angular, within an aril, bony and +- white when dry.
Species In Genus: 36 species: America. Etymology: (Cylindric Opuntia) Note: Hybridization common. Young buds of some species used for food, many species for ornament. Cylindropuntia chuckwallensis newly described, added as native.
eFlora Treatment Author: Marc Baker, Bruce D. Parfitt & Jon Rebman

Cylindropuntia munzii (C.B. Wolf) Backeb.
NATIVE
Habit: Plant < 2.4 m. Stem: trunk 1; branches several, spreading to curving upwards; terminal segments generally < 10 cm, 3--5 cm diam, generally easily detached; tubercles 10--16 mm, 3--8 mm high. Spines: 9--16, < 4 cm, light yellow to pale red-brown, sheath yellow-brown. Flower: inner perianth < 2 cm, yellow-green to red-brown; filaments green. Fruit: dry, proximal tubercles +- = to distal; base obtuse; generally with deciduous spines. Seed: generally fertile. Chromosomes: 2n=22.
Ecology: Gravelly or sandy soils of washes, canyon walls; Elevation: 150--600 m. Bioregional Distribution: DSon (Chocolate, Chuckwalla mtns, Imperial, Riverside cos.); Distribution Outside California: Baja California. Flowering Time: Mar--May Note: Most localities in United States +- inaccessible.
Synonyms: Opuntia ×munzii C.B. Wolf; Opuntia munzii C.B. Wolf; Cylindropuntia ×munzii (C.B. Wolf) Backeb.
Unabridged Note: Appears to be a good sp. because of its abundance, large geographic range, and viable seeds, especially populations in northeastern Baja California.
eFlora Treatment Author: Marc Baker, Bruce D. Parfitt & Jon Rebman
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Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Marc Baker, Bruce D. Parfitt & Jon Rebman 2016. Cylindropuntia munzii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=88946, accessed on April 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 30, 2016.


Cylindropuntia munzii
click for enlargement
© 2011 Neal Kramer
Cylindropuntia munzii
click for enlargement
© 2011 Neal Kramer
Cylindropuntia munzii
click for enlargement
© 2011 Neal Kramer
Cylindropuntia munzii
click for enlargement
© 2011 Neal Kramer
Cylindropuntia munzii
click for enlargement
© 2011 Neal Kramer

More photos of Cylindropuntia munzii in CalPhotos


Geographic subdivisions for Cylindropuntia munzii:
DSon (Chocolate, Chuckwalla mtns, Imperial, Riverside cos.);
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.