Opuntia stricta

(Haworth) Haworth

Syn. Pl. Succ., 191. 1812.

Common names: Pest pricklypear
Illustrated
Basionym: Cactus strictus Haworth Misc. Nat., 188. 1803
Synonyms: Opuntia dillenii (Ker Gawler) Haworth Opuntia inermis (de Candolle) de Candolle Opuntia stricta var. dillenii (Ker Gawle r) L. D. Benson
Treatment appears in FNA Volume 4. Treatment on page 133. Mentioned on page 125, 127.

Shrubs, sprawling or erect, to 2 m. Stem segments not disarticulating, green, flattened, narrowly elliptic or obovate, 10–25 (–40) × 7.5–15 (–25) cm, tuberculate, making margins appear scalloped between raised areoles, glabrous; areoles 3–5 per diagonal row across midstem segment, oval, 3–6.5 × 3.5 mm; wool dense, tan. Spines 0–11 per areole, in nearly all areoles to only in some marginal areoles or absent, spreading in all directions, yellow, aging brown, straight or curving, the longest stout, oval in cross-section, 12–40 (–60) mm, not markedly barbed. Glochids inconspicuous, few-to-many in crescent at adaxial edge of areole, yellow, aging brown, often incurved, subequal to increasing in length toward adaxial edge of areole, to 4 mm. Flowers: inner tepals light yellow throughout, 25–30 mm; filaments yellow; anthers yellow; style and stigma lobes yellowish. Fruits purplish throughout, stipitate, ellipsoid or barrel-shaped, 40–60 × 25–30 (–40) mm, juicy, spineless; areoles 6–10. Seeds tan, subcircular, 4–5 × 4–4.5 mm, with slightly irregular surface; girdle protruding to 1 mm. 2n = 44 (cultivated), 66.


Phenology: Flowering spring–summer (Feb–Jul).
Habitat: Coastal sand dunes, hammocks, edges of maritime forests, shell middens
Elevation: 0 m

Distribution

V4 248-distribution-map.gif

Ala., Fla., Ga., S.C., Tex., Mexico, West Indies, Central America, South Africa (), Australia ()

Discussion

Opuntia stricta hybridizes with O. engelmannii (apparently var. lindheimeri) forming O. ×alta Griffiths (as species) along the coast of southeastern Texas and adjacent Louisiana. The hexaploid hybrid is arborescent to 3 m; it has stem segments subcircular to oblong-ovate, with a glochid pattern intermediate of the putative parents, all yellow spines, and light green stigma lobes.

Selected References

None.

Lower Taxa

None.
... more about "Opuntia stricta"
cushionlike +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
deciduous +  and persistent +
0.3 cm3 mm <br />0.003 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
6 +  and 10 +
3.5 cm35 mm <br />0.035 m <br /> (?) +
Donald J. Pinkava +
(Haworth) Haworth +
Cactus strictus +
proliferating +
flattened +  and cylindric +
Pest pricklypear +
Ala. +, Fla. +, Ga. +, S.C. +, Tex. +, Mexico +, West Indies +, Central America +, South Africa () +  and Australia () +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (15 cm150 mm <br />0.15 m <br />) +
spineless +  and stipitate +
burlike +  and spiny +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
straight +
indehiscent +
persistent +, long +  and deciduous +
40mm;60mm +
proliferating +
tuberculate +  and smooth +
barrel--shaped +  and ellipsoid +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
inconspicuous +
few +  and many +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
foveolate +  and reticulate +
Coastal sand dunes, hammocks, edges of maritime forests, shell middens +
oblong +  and spatulate +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
deciduous +
flattened +  and conic +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
succulent +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
tinged color +
open +  and simple +
sometimes covered by outgrowths of proximal portion of style base or of flower tube wall +  and open +
persistent +  and deciduous +
Flowering spring–summer (Feb–Jul). +
ridgelike +  and nipple--shaped +
Syn. Pl. Succ., +
3;2;2;30 +
tuberlike +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
subcircular +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Illustrated +
not sheathed +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
brown +  and yellow +
curving +  and straight +
deciduous +  and persistent +
conspicuous +
with hairlike bristles +  and setose +
0 (?) +  and 11 (?) +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
hard +  and rigid +
decurrent +
winged +  and unsegmented +
tuberculate +  and smooth +
not disarticulating +
25 cm250 mm <br />0.25 m <br /> (40 cm400 mm <br />0.4 m <br />) +
15 cm150 mm <br />0.15 m <br /> (25 cm250 mm <br />0.25 m <br />) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
7.5 cm75 mm <br />0.075 m <br /> (15 cm150 mm <br />0.15 m <br />) +
segmented +
woody +  and succulent +
Opuntia dillenii +, Opuntia inermis +  and Opuntia stricta var. dillenii +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Opuntia stricta +
species +
dull +  and glossy +
yellow +  and paler +
segmented +
terrestrial;epiphytic or epipetric +
erect +  and sprawling +