Question: Which plant is found in more southern regions of the world, Dendrocalamus or Chamaedaphne
Context: Dendrocalamus is a tropical Asian genus of giant clumping bamboos in the grass family.  It is found in the Indian subcontinent, China, and Southeast Asia. Boschniakia rossica, commonly known as the northern groundcone, is a holoparasitic plant that lives in the northern latitudes of the northern hemisphere.  In the Pacific Northwest Temperate Rainforest, it does not grow south of Prince of Wales Island, beyond that boundary is the Vancouver groundcone habitat.  It does not contain chlorophyll, so it must be parasitic to obtain nutrients.  It specializes on "Alnus" species, but can parasitize off of other trees and shrubs such as on "Betula" (birch), "Salix" (willow), "Vaccinium" (blueberry), "Picea" (spruce), and "Chamaedaphne" (leatherleaf shrub).  This organism is likely to be found at mid elevations alongside rivers and streams, where moisture is abundant.  This species propagates itself through water flow.  In some places bears are known to have eaten the starchy roots, or tubers, of this plant. Lepidium virginicum, also known as least pepperwort, Virginia pepperweed or peppergrass, is an annual or biennial plant in the Brassicaceae or mustard family.  It is native to much of North America, including most of the United States and Mexico and southern regions of Canada, as well as most of Central America.  It can be found elsewhere as an introduced species. Alyogyne hakeifolia is a species of flowering plants found in southern regions of Australia.  The plant is similar to a "Hibiscus" and was assumed to be part of that genus for many years.  It is known to have been cultivated in England since the mid nineteenth century. The grizzled skipper ("Pyrgus malvae") is a common butterfly from the Family Hesperiidae that is widespread throughout Europe.  It is small with a chequered pattern on its wings that appears to be black and white.  This butterfly can be found throughout Europe and is heavily concentrated in central and southern regions of England.  The butterfly prefers three major types of habitat: woodland, grassland, and industrial.  Referenced as a superspecies, "Pyrgus malvae" includes three semispecies: "malvae, malvoides," and "melotis".  Eggs are laid on plants like "A. euphoria" for their warmth and nutritional content.  As larvae, they are typically restricted to only one plant where they built tents for shelter unless they move on to a second host plant.  Larvae then spin cocoons, usually on the last host plant they have occupied, where they remain until spring.  Upon emerging as adult butterflies, grizzled skippers are quite active during the day and tend to favour blue-coloured plants for food.  They also exhibit social behaviours in the form of vibrational communication that may be shared with ants as well as chemical communication that may be involved in mating.  Exhibiting territorial behaviour, males apply both perching and patrolling strategies to mate with a desired female. Twin Lakes Bog State Natural Area is a Wisconsin Department of Natural Resources-designated State Natural Area featuring an intact tamarack ("Larix laricina") swamp lying in a depression between two kettle lakes (North Twin Lake and South Twin Lake).  The understory of the swamp has an open aspect to it, and is dominated by the ericaceous shrubs Labrador tea ("Rhododendron groenlandicum"), bog laurel ("Kalmia polifolia"), and leatherleaf ("Chamaedaphne calyculata").  Other common plant species found here include: wooly-fruit Sedge ("Carex lasiocarpa"), twinflower ("Linnaea borealis"), cinnamon fern ("Osmundastrum cinnamomeum"), sundews ("Drosera rotundifolia") and ("Drosera intermedia"), and the notably abundant pink ladyslipper ("Cypripedium acaule").  Three small bog lakes (0.4-1.0 acres), surrounded by quaking bog mats, are found in the interior of the swamp.  Uplands surrounding the swamp are forested with second-growth hardwoods dominated by sugar maple ("Acer saccharum") and red oak ("Quercus rubra").  In 1989, the US Forest Service designated Twin Lakes Bog as a Research Natural Area. Banksia violacea, commonly known as violet banksia, is a species of shrub or tree in the plant genus "Banksia" (family Proteaceae).  It generally grows as a small shrub to 1.5 m (5 ft) high with fine narrow leaves, and is best known for its unusually coloured dark purple-violet inflorescences.  The colour of the inflorescences, short leaves, and flattened follicles which are sticky when young, help identify this species from others in the field.  It is found in low shrubland in southern regions of Western Australia from Esperance in the east to Narrogin in the west, growing exclusively in sandy soils. Chamaedaphne calyculata, leatherleaf, is a shrub in the plant family Ericaceae and the only species in the genus Chamaedaphne.  It has a wide distribution throughout the cool temperate and subarctic regions of the Northern Hemisphere. Christinus is a genus of Gekkonidae geckos found in southern regions of Australia.  It contains species and subspecies that are regionally termed as marbled geckos.  The contrasted patterns of these geckos, marbling, are found in a variety of reddish-brown, grey, silver, white, black and purplish hues.  They are frequently found in old knotted trees and sometimes congregate in large numbers in established urban environments. Xanthosia rotundifolia is a species of the plant family Mackinlayaceae, but sometimes also placed in Araliaceae or Apiaceae.  The informal name of this species, Southern Cross, is derived from the common name of the constellation Crux.  The flowers, white in colour, symmetrical, and cruciform in outline, are reminiscent of the distinctive southern stars.  Its habit is as a shrub between 0.35 m to 0.8 m in height.  It only occurs in southern regions of Southwest Australia, in a variety of soils over granite or laterite.  It was first described by de Candolle in 1829.
Answer: Dendrocalamus