Haworthia coarctata

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

Haworthia coarctata is a species of the genus Haworthia in the subfamily of the Affodilla family (Asphodeloideae).

description

Haworthia coarctata grows stem-forming and sprouting. The numerous, upright or inwardly curved leaves form a rosette with a diameter of up to 12 centimeters. The brownish green leaf blade is up to 7 inches long and 2 inches wide. The ratio of shoot diameter to blade width is 1: 1.7. The leaf surface is rough. There are usually rounded warts on it.

The simple or occasionally branched inflorescence reaches a length of up to 60 centimeters. The upside-down flower tube is curved and the tepals are rolled back.

Systematics and distribution

Haworthia coarctata is widespread in the Eastern Cape province of South Africa.

The first description by Adrian Hardy Haworth was published in 1824. Nomenclatory synonyms are Aloe coarctata (Haw.) Roem. & School f. (1829), Haworthia reinwardtii subsp. coarctata (Haw.) Halda (1997) and Haworthia reinwardtii var. coarctata (Haw.) Halda (1997).

The following varieties and forms are distinguished:

Haworthia coarctata var. Coarctata
Haworthia coarctata var. Adelaidensis (Poelln.) MBBayer
Haworthia coarctata var. Tenuis (GGSm.) MBBayer
Haworthia coarctata f. coarctata
Haworthia coarctata f. greenii (Baker) MB Bayer

proof

literature

Martin Bruce Bayer , Ernst Jacobus van Jaarsveld : Haworthia coarctata . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 212-213 .

Individual evidence

^ Adrian Hardy Haworth: Decas secunda novarum Plantarum Succulentarum . In: Philosophical Magazine . Volume 64, 1824, p. 301 ( online ).

Web links

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

Haworthia coarctata var. Coarctata in the Red List of South African Plants
Haworthia coarctata var. Adelaidensis in the Red List of South African Plants
Haworthia coarctata var. Tenuis in the Red List of South African Plants
Haworthia coarctata var. Coarctata in the Red List of South African Plants
Haworthia coarctata var. Coarctata in the Red List of South African Plants

[1] Adrian Hardy Haworth: Decas secunda novarum Plantarum Succulentarum . In: Philosophical Magazine . Volume 64, 1824, p. 301 ( online ).