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Opuntia engelmannii Salm-Dyck, ex Engelm.
CACTUS APPLE
Opuntia lindheimeri Engelm; Opuntia lindheimeri Engelm var lindheimeri; Opuntia phaeacantha var discata Griffiths LDBenson & Walk; Opuntia discata Griffiths; Engelmanns Pricklypear

Life   Plantae   Dicotyledoneae   Cactaceae   Opuntia

Opuntia engelmannii, Whole plant
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii, Whole plant

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Opuntia engelmannii, whole plant - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii, whole plant - unspecified
Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii

Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii
Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii

Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii
Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii

Opuntia engelmannii, whole plant - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii, whole plant - unspecified
Opuntia engelmannii, whole plant - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii, whole plant - unspecified

Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii
Opuntia engelmannii
© Copyright Steve Baskauf, 2002-2011 · 4
Opuntia engelmannii

Associates · map
FamilyScientific name @ source (records)
Apidae  Diadasia opuntiae @ BBSL (3)

Diadasia piercei @ BBSL (1)

Diadasia rinconis @ BBSL (1); UCRC_ENT (16)
Megachilidae  Ashmeadiella meliloti @ UCRC_ENT (1)

Ashmeadiella opuntiae @ UCRC_ENT (1)

Heriades occidentalis @ UCRC_ENT (2)

Heriades texanus @ BBSL (1)

Lithurgopsis apicalis @ UCRC_ENT (16)

Megachile casadae @ BBSL (1)
Myriangiaceae  Diplotheca wrightii @ BPI (1)
_  Perisporium wrightii @ BPI (1)

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12. Opuntia engelmannii Salm-Dyck ex Engelmann, Boston J. Nat. Hist. 6: 207. 1850 (as engelmanni).

Engelmann's pricklypear, cactus apple

Shrubs or trees, with short trunk , spreading to sometimes de-cumbent, 1-3 m. Stem segments not disarticulating, yellow-green to blue-green, flattened, circular to obovate to rhombic, or apex tapering, elongate, 15-40(-120) × 10-40 cm, ± tuberculate, gla-brous, often glaucous; areoles 5-8 per diagonal row across mid-stem segments, evenly distributed on stem segment to absent, subcircular to obovate, 4-7 × 4-6 mm; wool tawny, aging blackish. Spines (0-)1-6(-12) per areole, white to yellow, usually red to dark brown at extreme bases, aging gray to ± black, subulate, straight to curved, flattened to angular at least near base, the longest spreading to strongly reflexed, 10-30(-50) mm. Glochids widely spaced, sparse in crescent at adaxial edge, encircling areole or nearly so, and scattered in subapical tuft, yellow to red-brown, aging gray to blackish, of irregular lengths, to 10 mm. Flowers: inner tepals uniformly yellow to buff, sometimes orange to pink to red (rarely whitish), 30-40 mm; filaments, anthers, and style whitish to cream; stigma lobes yellow-green to green. Fruits dark red to purple throughout, sometimes stipitate, ovate-elongate to barrel-shaped, 35-90 × 20-40 mm, juicy (bleeding and staining), glabrous, spineless; areoles 20-32 usually toward apex. Seeds tan to grayish, subcircular to deltoid, flattened, 2.5-6 × 2-5 mm; girdle protruding 0.3-0.5 mm.

Varieties 5 (5 in the flora): sc and sw United States, n Mexico.

The basal portions of stems seedlings of Opuntia engelmannii bear long hairlike spines.

The name Opuntia dillei Griffiths has been used for a spineless or nearly spineless morphotype of O. engelmannii .

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12d. Opuntia engelmannii Salm-Dyck ex Engelmann var. flavispina (L. D. Benson) B. D. Parfitt & Pinkava, Madroño. 35: 348. 1988.

Opuntia phaeacantha Engelmann var. flavispina L. D. Benson, Cact. Succ. J. (Los Angeles) 46: 79. 1974

Stem segments obovate, 15-23 × 14-18 cm, to 1.5 times longer than wide. Spines (0-)1-7 per areole, evenly distributed on stem segments, arching downward, yellow with extreme reddish brown basal portions, aging deep red to black, often twisted, the longest 65-75 mm, smaller ones depressed, whitish. 2 n = 66.

Flowering spring (Apr-May). Sonoran Desert, sandy bajadas; 500-800 m; Ariz.; Mexico (Sonora).

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12e. Opuntia engelmannii Salm-Dyck ex Engelmann var. flexispina (Griffiths) B. D. Parfitt & Pinkava, Madroño. 35: 348. 1988.

Opuntia flexispina Griffiths, Bull. Torrey Bot. Club 43: 87. 1916; O. strigil Engelmann var. flexispina (Griffiths) L. D. Benson

Stem segments ovate to subcircular, 20-35 × 15-30 cm, to 1.5 times longer than wide. Spines (0-)1-5 per areole, evenly distributed on stem segments, deflexed sharply (not arching) or recurving laterally, yellow, sometimes with brown basal portions, flexible, the longest 50-80 mm.

Flowering spring. Rangelands, on hills; of conservation concern; 100-200 m; Tex.

Opuntia engelmannii var. flexispina is recognized here reluctantly because it is so poorly known; more study is required to assess its status. Its distribution is limited to Webb and Zapata counties, Texas, according to D. Weniger (1970).

Following served from var. lindheimeri Texas A&M University
   
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12c. Opuntia engelmannii Salm-Dyck ex Engelmann var. lindheimeri (Engelmann) B. D. Parfitt & Pinkava, Madroño. 35: 346. 1988.

Texas pricklypear

Opuntia lindheimeri Engelmann, Boston J. Nat. Hist. 6: 207. 1850; O. lindheimeri var. lehmannii L. D. Benson; O. lindheimeri var. tricolor (Griffiths) L. D. Benson; O. subarmata Griffiths; O. tardispina Griffiths

Stem segments broadly obovate to subcircular, 15-30 × 12.5-25 cm, sometimes broader than wide, to 1.5 times longer than wide. Spines (0-)1-6 per areole, evenly distributed on stem segment to absent, yellow throughout, sometimes with red or red-brown extreme bases, aging blackish, longest 12-75 mm. 2 n = 66.

Flowering spring (Mar-Jun). Chihuahuan Desert, plains to woodlands and chaparral, sandy to gravelly or rocky soils; 0-1900 m; La. , N.Mex., Tex.; Mexico; South Africa (introduced).

L. D. Benson (1982) grouped all large, yellow-spined plants in the Texas region under Opuntia lindheimeri . Plants known as O. lindheimeri var. lehmannii have large, wavy stem segments that are broader than long. Opuntia lindheimeri var. tricolor (Griffiths) L. D. Benson is a morphotype with long, yellow spines to 75 mm; and O. subarmata Griffiths is a morphotype with spineless or nearly spineless stems.

Although Opuntia engelmannii var. lindheimeri is a hexaploid, like the rest of O. engelmanni , several individuals were recorded as 2 n = 22, 44, and ca. 44; however, such numbers require taxon verification.

Opuntia engelmannii var. lindheimeri hybridizes with O. stricta, forming hexaploid O. × alta Griffiths, and with O. macrorhiza Engelmann, forming pentaploid O. × edwardsii V. E. Grant & K. A. Grant.

Following served from var. linguiformis Glendale Xeriscape Botanical Garden
   
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12b. Opuntia engelmannii Salm-Dyck ex Engelmann var. linguiformis (Griffiths) B. D. Parfitt & Pinkava, Madroño. 35: 347. 1988.

Cow's tongue pricklypear

Opuntia linguiformis Griffiths, Rep. (Annual) Missouri Bot. Gard. 19: 270, plate 27 (lower). 1908; O. lindheimeri Engelmann var. linguiformis (Griffiths) L. D. Benson

Stem segments lanceolate to narrowly lanceolate, becoming very elongate, often falcate, 35-120+ × 8-17.5 cm, 2+ times longer than wide. Spines 0-3 per areole, absent or irregularly to regularly arranged at most distal areoles, yellow, aging blackish, longest 12-30 mm. 2 n = 66.

Flowering spring (Apr-May). Deserts; 100-600 m; Ariz., Tex.; Mexico (Coahuila).

Opuntia engelmannii var. linguiformis is widely cultivated, at times escaping and becoming established in native desert vegetation. It was questionably reported to be native in Bexar County, Texas (D. Weniger 1984).

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Updated: 2024-05-29 09:23:08 gmt
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