
(Engelmann) Britton & Rose, Smithsonian Miscellaneous Collections 50: 529, 1908
Lectotype; Syntype; Lectotype; Lectotype; Lectotype; Lectotype
Original Citation
What is Opuntia littoralis?
Opuntia littoralis is a California pricklypear cactus originally described as a possible variety of O. engelmannii, but the two species are not closely related.
O. littoralis is hexaploid.
Details
O. littoralis plants may be low and spreading, but they send branches upright to 1 m as well. The oblong or obicular cladodes are 12-15 cm across the shortest diameter. Areoles may be elevated. Spines are numerous and yellow or pale yellow and may be 1 cm long or longer. There are multiple pale spines over much of the pad surface, creating a shaggy look.
The flowers are yellow and 8 to 12 cm across. The red fruit may be nearly globular or oblong. Seeds are 4-5 mm in diameter.
Other Notes
O. littoralis is found “along and near” the coast of California, but Britton and Rose reported that a sample was collected at Elsinore, California. The type locality is “coast from Santa Barbara to San Diego, California”.
For more information, see:
Mayer, M. S. & Rebman, J. P. (2021) Evolution of the chollas (Cactaceae). Madroño, 68:109.
GenBank locus MW419601.