Family: Apocynaceae (former Asclepiadaceae)
Stiff, angular, spiny, modeled stems that form a slowly trailing hanging display. Produces slightly fuzzy ornate flowers up to 6″ across in the fall!
Habitat:
Sprawling lithophyte that grows in the shade between limestone rocks in North Eastern Africa and the Arabian Peninsula
Cultivation:
Should be watered once every 1 to 2 weeks during the summer, keep dry in winter. Grow in an extremely well draining media (mostly pumice), a mix of crushed limestone or decomposed granite (DG) and pumice works very well! Plants are extremely rot-prone, and can be difficult for beginners. Enjoy extremely bright light to full sun. Keep above 40°F.
Probably actually Disocactus and Selenicereus hybrids.
Hybrid tree-growing jungle cacti; large colorful blooms
Giant colorful orchid-cactus flowers, blooms at night. Thick pendant stems.
Mini grey-green globular plant w/tight white spines. Readily clumping
Triangular leaves, vertical stems. Vibrant pink flowers. 2½ ft tall.
Vertical columns, whitish to yellow spines, to 8ft tall. When mature will form a reddish cephalium with cream colored flowers.
Harsh Peruvian deserts. Dense white hairs with some longer spines. Tree-like to 20ft
Shrubby, branching from base, to 8ft. w/lateral cephalium
Tree-like growth, shrubby, branches at base, stems are columnar to 6ft. tall. Densely covered in spines and fine hairs.
Large and tree like. Light brown spines when young grow more white as they age.
Slow-clumping terrestrial orchid w/5ft. bloom stalks and small ruffly edged flowers.
Tall and cactus-like with variegated green stems. Forms branches in a candelabra shape, with tiny bright yellow flowers in spring.
E. bupleurifolia x E. pulvinata
Mounds of spiraling green stems to 10″h. with small leaves at the tips.
Tall with cactus-like growth habit branching abundantly up top with age. Can grow 30ft plus in habitat. Glossy green stems with small leaves on new growth. Good indoors, sensitive to frost.
Green stems, reddish spines, very branchy. Can grow 8 to 10ft tall.
Red spines, wildly branching green-blue narrow pencil-like stems, to 24″ tall. Sulfur yellow flowers.
Thick branches to 12″ long, large flat leaves, small reddish inflorescence.
Spiny stems, shrubby habit.
6″ smooth round caudex, very slow growing, with multiple narrow branches and distinctive brownish narrow wavy leaves. Keep dry in winter, will rot if wet when dormant.
Species is green, however the green/white variegated variety is commonly sold under the same name, or E. “Ammak”. 4-sided stems with curled edges. Tree form, tall and branchy.
Stemless clumps to 12″t., keep dry in winter.
Stocky trunk, green turning grey-brown with age. Prominent leaf scars. Freely branching. Yellow-green bracts. Rocky soils.