california garden series - christmas cactus flower - schlumbergera

california garden series christmas cactus flower schlumbergera small genus cacti six nine species found coastal mountains south-eastern brazil plants grow trees rocks habitats generally shady high humidity appearance desert-dwelling cousins truncata group cultivars features derived stem segments pointed teeth flowers held horizontally horizontal upper side differently shaped lower zygomorphic pollen yellow htbphotos john katharina notarianni websites print media