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Welwitschia mirabilis

Welwitschia mirabilis Hook.f.

 

Welwitschia

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionGnetophytaGymnospermous flowering plants; supposed link between conifers and flowering plants
ClassGnetopsidaWoody plants, most closely related to conifers
OrderWelwitschialesAn order named for a single species: Welwitschia
FamilyWelwitschiaceaeA family named for a single species: Welwitschia
GenusWelwitschiaNew Latin, from Austrian botanist Friedrich Welwitsch (1806-1872)
SpeciesmirabilisFrom mirari, “to marvel at;” from mirus “wonderful”

About plant names...

Welwitschia is named for its discoverer, Austrian botanist Friedrich Welwitsch, and it is a living fossil among plants. It holds the unusual distinction of being the sole member of its genus and its family. It is a gymnosperm—a cone-bearing plant like pines and spruces. Welwitschias are found only in the Namib desert in Namibia and Angola, along the Kuiseb River and the Atlantic Ocean. They are extremely long-lived, 400 to 1500 years, rarely reaching 2000 years in age.

Identification: This remarkable species reminds me of a huge agave plant that was doing reasonably well right up until a meteor struck it, but looking like the victim of an unfortunate explosion is simply the way this plant operates. Botanists describe it as “unlike any known plant on earth.” Flattened almost to the ground, it has a short, woody trunk from which two, only two, straplike leaves emerge. Actually, welwitschias aren’t always that flat—the tallest recorded specimen is 6' (1.8 m) high. The leaves grow continuously, twisting and curling and dying at the tips, looking limp and listless in the blistering sun. These plants are not small, easily a couple of car lengths in diameter. Female cones are reddish, with conical or pyramid-shaped tips. Male cones, purplish brown, are narrow ovals in shape, 1¾-4" (5-11 cm) long, rarely reaching 12-18" (30-45 cm) long, depending on the subspecies.

Welwitschia mirabilis (Welwitschia)

Male welwitschia in flower. Archiwum “Roweromaniaka wielkopolskiego” No_469-33. By Roweromaniak.

Welwitschia mirabilis (Welwitschia)

Salmon-colored female welwitschia cones. The bright red insects are Probergrothius angolensus. By Bries.

Online References:

Welwitschia mirabilis on the South African National Biodiversity Institute's web site, plantzafrica.com

Welwitschia mirabilis on Wikipedia

Welwitschia mirabilis on The Gymnosperm Database

Welwitschia mirabilis on Wikimedia Commons (many great photos)

Welwitschia mirabilis description by Thomas H. Kent, last updated 16 Aug 2013.

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Welwitschia mirabilis (Welwitschia)

7/7/2017 · Namibia · By Benjamin Winslow

Welwitschia mirabilis (Welwitschia)

7/7/2017 · Namibia · By Benjamin Winslow