Haworthia retusa (L.) Duval

Species

Angiosperms > Asparagales > Asphodelaceae > Haworthia

Characteristics

Plants acaulescent, with leaves in a basal rosette which is about 14 cm diam., proliferous from the base. Leaves about 30, in 5 vertical tiers, green, the young erect, the old ascending, spreading, recurved, firm, up to 6 cm long, about 25 mm broad, 1.2 mm thick at the base of the end-area, tapering; face below end-area flat to slightly convex, green, smooth, shining, deltoid acute(-acuminate) with 8 to 9 longer and shorter silvery, parallel face lines; lower surface convex, smooth, green; keel 1, centrally positioned in the upper third, acute, rough with 0.5 mm long whitish teeth; margins acute, smooth on the end-area, toothed below; end-awn 1 to 2 mm long. Inflorescence up to 70 cm tall; peduncle about 20 cm long, simple, about 4 mm diam., bracteate; sterile bracts membranous, ovate, abruptly long acuminate, about 12 mm long, erect, keeled, cloaking the peduncle at the base; raceme about 50 cm long, with about 60 spirally arranged flowers and buds, 2 open simultaneously; floral bracts membranous, 12 mm long, deltoid, acute, keeled with broad green veins, clasping the pedicels, (longer than the pedicels); pedicels 1 mm long, 1.5 mm in diam., green; perianth white, with green keels to the segments, 12 mm long, compressed at base, funnel-shaped, tube more or less 4 mm across, constricted to 3 mm above, segments free to the base, limb 2 lipped; posterior segments with lobes free, recurved, spreading, white, with fine green veins; stamens 6 of two lengths, 5 and 6 mm long, inserted within the perianth tube; ovary 4 mm long, 1.5 mm diam., green; style 1 mm long, straight, capitate.
More
Acaulescent succulent, usually with solitary rosettes to 15 cm diam. Leaves yellowish green to brown, somewhat translucent, smooth, abruptly recurved, flat above. Flowers white.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 0.5 - 0.3
Mature height (meter) 0.5 - 0.7
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 5-8
Soil humidity 1-5
Soil texture 6-7
Soil acidity 4-8
Soil nutriment -
Hardiness (USDA) 10-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) 1
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Haworthia retusa unspecified picture

Distribution

Haworthia retusa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:536185-1
WFO ID wfo-0000652998
COL ID 3JWSX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Catevala retusa Haworthia retusa Aloe retusa Haworthia multilineata Apicra retusa Haworthia retusa var. densiflora Haworthia retusa var. solitaria

Lower taxons

Haworthia retusa var. retusa Haworthia retusa var. quimutica Haworthia retusa var. nigra