Haworthia venosa

Haworthia venosa
	Haworthia venosa subsp. tessellata
Systematics
	Monocots
Order :	Asparagales (Asparagales)
Family :	Grass trees (Xanthorrhoeaceae)
Subfamily :	Affodilla family (Asphodeloideae)
Genre :	Haworthia
Type :	Haworthia venosa
Scientific name
	Haworthia venosa
	( Lam. ) Haw.

Haworthia venosa is a species of the genus Haworthia in the subfamily of the Affodil family (Asphodeloideae).

description

Haworthia venosa usually grows without a trunk and sprouts slowly through offshoots or runners. The 12 to 20 spread to recurved, oval-triangular leaves form a rosette with a diameter of up to 5 centimeters and a height of up to 3 centimeters. The leaf blade is up to 10 inches long and 1.5 inches wide. The smooth upper side of the leaf is patterned like a net, the underside is usually slightly rough.

The sparsely branched, loose inflorescence reaches a length of up to 35 centimeters and consists of 15 to 20 flowers . The upside-down flower tube is curved and the inner tepals are rolled back.

Systematics and distribution

Haworthia venosa is common in Namibia and the South African provinces of Limpopo , Western Cape and Eastern Cape .

It was first described as Aloe venosa in 1783 by Jean-Baptiste de Lamarck . Adrian Hardy Haworth placed the species in the genus Haworthia in 1821 .

The following subspecies are distinguished:

Haworthia venosa subsp. venosa
Haworthia venosa subsp. granulata (Marloth) MBBayer
Haworthia venosa subsp. tessellata (Haw.) MBBayer
Haworthia venosa subsp. woolleyi (Poelln.) Halda

proof

literature

Martin Bruce Bayer , Ernst Jacobus van Jaarsveld : Haworthia venosa . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 229-230 .

Individual evidence

^ Encyclopédie Méthodique: Botanique . Volume 1, Part 1, Paris 1783, p. 89 ( online ).
^ Adrian Hardy Haworth: Saxifragëarum enumeratio. Accedunt revisiones plantarum succulentarum . Wood, London 1821, p. 51 ( online ).

Web links

Commons : Haworthia venosa - collection of images, videos and audio files

Haworthia venosa subsp. venosa in the Red List of South African Plants
Haworthia venosa subsp. granulata in the Red List of South African Plants
Haworthia venosa subsp. tessellata in the Red List of South African Plants
Haworthia venosa subsp. woolleyi in the Red List of South African Plants

[1] Encyclopédie Méthodique: Botanique . Volume 1, Part 1, Paris 1783, p. 89 ( online ).

[2] Adrian Hardy Haworth: Saxifragëarum enumeratio. Accedunt revisiones plantarum succulentarum . Wood, London 1821, p. 51 ( online ).