The California interior chaparral and woodlands ecoregion forms an elliptical ring of hills and low mountains around California's Central Valley, stretching from Shasta Lake south toward Wheeler Ridge. Its biologically rich mosaic includes chaparral, grasslands, oak savannas and woodlands, serpentine communities, pine and montane conifer forests, riparian forests, and wetlands. The climate is Mediterranean, with warm, dry summers and mild, wet winters. Notably, it hosts the largest number of endemic mammals of any ecoregion in the U.S. and Canada, with the Alameda whipsnake as its flagship species; urban sprawl and rural development are leading threats.

The California montane chaparral and woodlands ecoregion covers the higher mountains of southern and central California — the Transverse, Peninsular, and Coast Ranges, including the San Bernardino, San Gabriel, San Jacinto, Santa Monica, and Santa Lucia Mountains — with disjunct blocks in northern Baja California, Mexico. Its Mediterranean climate brings hot, dry summers and cool, wet winters, with mid-summer monsoonal thunderstorms that often form over the Transverse and Peninsular Ranges. Vegetation forms an elevation mosaic: chamise, manzanita, and scrub oak chaparral and oak woodlands give way upslope to pine and mixed-conifer forest and, on the highest peaks, subalpine communities. The region is notable for harboring eight endemic conifer species, and its flagship animal is the white-eared pocket mouse.

The Santa Lucia Montane Chaparral & Woodlands ecoregion hugs the Pacific coast along California's Santa Lucia Mountains, part of the Southern Coast Ranges, running from the Monterey Peninsula south through rugged Big Sur to areas west of Templeton. Moist western slopes support forests of coast redwood, Douglas-fir, ponderosa pine, and Monterey pine, while drier interiors carry chaparral and oak woodlands. The climate is Mediterranean, with cool, often foggy summers near the coast giving way to hot interior summers. Notably, the region holds the southernmost native stands of coast redwood and the endemic Santa Lucia fir, the rarest and most narrowly distributed fir in North America.

The Aegean and Western Turkey sclerophyllous and mixed forests ring the Aegean Sea, spanning most of mainland Greece and the Aegean islands, the western coast of Turkey, and reaching into southeastern North Macedonia and southwestern Bulgaria. Its vegetation is classic Mediterranean: dense maquis shrubland of holm oak, strawberry tree, and bay laurel, extensive pine forests of Calabrian (Turkish) pine, Aleppo pine, and stone pine, with sweet chestnut and oriental beech on cooler northern slopes. The climate is Mediterranean, with mild winters and dry summers. The ecoregion's flagship is the oriental sweetgum (Liquidambar orientalis), endemic to a limited area of southwestern Turkey and the Greek island of Rhodes, and much of the original habitat has been heavily degraded by human activity dating back to ancient times. For gardeners drawn to drought-tolerant Mediterranean planting, native genera such as Arbutus (strawberry tree), Laurus (bay laurel), and the pines offer ornamental, climate-suited choices.

The Albany Thickets ecoregion lies in South Africa's Eastern Cape, concentrated in the wide valleys of the Great Fish, Sundays, and Gamtoos rivers around the Albany region. It forms a dense, spiny shrubland and woodland with a canopy up to about 2.5 metres tall, growing on well-drained sandy soils and rich in succulents such as the porkbush (Portulacaria afra), jade plant (Crassula ovata), aloes, and succulent Euphorbia, alongside trees like Schotia afra. The climate is dry, hot in summer and cold in winter, with inland valleys swinging from near 0 degrees C to over 40 degrees C and receiving low, irregular rainfall. The thickets form part of the Cape Floristic Region and are a noted center of endemism for succulent Euphorbia, while Addo Elephant National Park protects African bush elephants and black rhinoceros within the region. For gardeners, the spekboom (Portulacaria afra) and jade plant native here are both widely grown ornamental, drought-tolerant succulents.

The Anatolian conifer and deciduous mixed forests cover the mountains and plateaus of southwestern Anatolia in Turkey, a transitional zone where Mediterranean conditions grade into increasingly continental climate moving from west to east. Its forests are a mosaic of pines and deciduous broadleaf trees: Turkish pine (Pinus brutia) holds the western foothills and inland depressions, while the emblematic Anatolian black pine (Pinus nigra ssp. pallasiana) dominates the drier east and higher elevations, mixing with oaks (Quercus cerris, Q. pubescens, Q. robur, Q. frainetto), sweet chestnut, Oriental beech, and juniper. The climate is broadly Mediterranean, with hot dry summers and rainy winters and annual precipitation ranging roughly 400 to 600 mm. The region shelters brown bears, grey wolves, Saker falcons, and the critically endangered long-legged wood frog, and its wetlands are vital for migratory waterfowl such as Dalmatian pelicans and white-headed ducks; it is classified as critical or endangered, with only a small fraction of its area protected. For gardeners, several plants native here are familiar ornamentals, including the cedar of Lebanon (Cedrus libani) and sweet chestnut.