Opuntia littoralis (Engelmann) Cockerell 1905
Opuntia engelmannii var. littoralis Engelmann 1876
Opuntia semispinosa Griffiths 1916
Opuntia littoralis var. austrocalifornica L. D. Benson & Walkington 1965
Coast Prickly Pear, Sprawling Prickly Pear
The coastal prickly pear is a native of northern Baja California and southern California. It is a common sight in the Laguna Beach area.
Identification: These cacti are low 12-24" (30-60 cm) and shrublike, and have some long, rigid spines, as well as short, hairlike spines called glochids. It is the short ones, which detach easily, that can be painful and difficult to remove. Stem segments are roughly oval in shape, 2½-12" (7-30 cm) × 1¾-4" (5-10 cm). Flowers are yellow or orange-yellow, sometimes with some red, sometimes red or shades of purple. See this Opuntia comparison table.
Opuntia littoralis on Desert-tropicals.com
Opuntia littoralis on the Natural History of Orange County, California
Opuntia littoralis on Plants for a Future, a resource and information centre for edible and otherwise useful plants
Opuntia littoralis on CalPhotos
Opuntia littoralis from the Jepson Manual
Opuntia littoralis on eFloras
Opuntia littoralis description by Thomas H. Kent, last updated 12 Oct 2018.