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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 December 10, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 10, 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. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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.