Haworthia arachnoidea (L.) Duval.
Plants form a stemless rosette, with dense, incurving, light to dark green leaves. Rosettes vary between 60–120 mm in diameter and are usually solitary or occasionally forming small clusters. The keel and leaf margins bear long translucent spines that may be soft or become very sharp when dried (as in the var. scabrispina). This species is fairly widespread throughout the western parts of the Northern Cape, the far northern parts and interior of the Western Cape, and as far as Steytlerville and Jansenville in the Eastern Cape, South Africa. It usually grows on southern slopes under the shade of shrubs and other plants in Fynbos vegetation in sandy, acidic, well-drained soil. It often grows in rock crevices or the shelter of boulders. This species has 7 described and currently accepted varieties: var. arachnoidea, var. aranea, var. calitzdorpensis, var. namaquensis, var. nigricans, var. scabrispina and var. setata.

Haworthia cooperi Baker
Plants form a stemless rosette, with fairly dense, incurved, bright green, bluish green to pale greyish green, slightly translucent leaves. Rosettes vary between 20–80 mm in diameter and often form small groups. Leaves of some varieties are often very succulent and spineless, but in other varieties there are short soft spines on the keel and margins. This species is fairly widespread in the Eastern Cape as far northeast as King William’s Town and just enters the Western Cape at Nuwekloof, South Africa. It grows on flat areas or rocky slopes in dry open grassland, high-lying sourveld, dry Valley Bushveld and Karroid vegetation types. It often grows in the protection of boulders and other plants, or in exposed positions at the edge of rocky outcrops. This species has 13 described and currently accepted varieties: var. cooperi, var. dielsiana, var. doldii, var. gordoniana, var. gracilis, var. isabellae, var. leightonii, var. picturata, var. pilifera, var. tenera, var. truncata, var. venusta and var. viridis.

Haworthia decipiens Poelln.
Plants form stemless rosettes, with spreading to incurved, bright green leaves. Rosettes range from 20–100 mm in diameter and are solitary or sometimes in small groups. Leaves are relatively thin, with sparse marginal spines. This species occurs in the Western and Eastern Cape, South Africa, from Merweville in the west to Bosberg and Port Elizabeth in the east. It usually grows in the protection of boulders and low Karoo scrub or in thicket and other plants. This species has 5 described and currently accepted varieties: var. cyanea, var. decipiens, var. minor, var. virella and var. xiphiophylla.

Haworthia mucronata Haw.
Plants form a stemless rosette, with incurved, brilliant green to grey-green or purplish brown leaves. Rosettes are between 60–80(–120) mm in diameter and often form small groups. Leaves are soft and slightly pellucid, often with spines along the translucent keel and margins. This species is restricted to the Western Cape, South Africa, between Montagu in the west and Oudtshoorn in the east. It grows in Karroid and Renosterbos vegetation, often on mountain slopes, in rock crevices or in the protection of other plants. This species has 5 described and currently accepted varieties: var. habdomadis, var. inconfluens, var. morrisiae, var. mucronata and var. rycroftiana.