Crassula multicava subsp. multicava
Common names
fairy crassula
Biostatus
Exotic
Category
Vascular
Structural class
Herbs - Dicotyledons other than Composites
Flower colours
Red/Pink
Detailed description
Glabrous perennial herb; stems prostrate, creeping, sprawling or decumbent, rooting at nodes. Leaves shortly petiolate, sometimes with petioles to 2 cm long, mostly on distal ascending part of stems, not decussate or imbricate except in small rosettes at stem apices, to 45-(55) x 40-(43)mm, broadly ovate, broadly oblong-elliptic, to suborbicular or almost square, flat, entire, green or glaucescent, often suffused with red, especially towards margins, dotted with numerous whitish or reddish hydathodes; base rounded , truncate or subcordate; apex rounded or more or less emarginate. Inflorescence a loose thyrse, to about 10 cm long but very variable in size; main axis with very small bracts. Flowers 5-merous, 8-12 mm diameter, usually 12-numerous, on pedicels slightly < to = flowers. Calyx 1.5-2 mm long; lobes triangular. Carolla star-like, petals free and patent, (4)-5-6 x 1-2 mm, narrowly triangular or triangular-lanceolate, rose to crimson in bud, pale pink inside at anthesis; apex acute. Stamens 3-4 mm long, < carpels. Scales 0.2-0.3 mm long, more or less rectangular (wider than long). Fruits and seeds not seen, but flowers often replaced by small plantlets in inflorescence branch axils. (Webb et al 1988).
Habitat
Terrestrial.
Conservation status
Not applicable
Detailed taxonomy
Family
Crassulaceae
Ecology
Flowering
August, September, October, November, December, January, February
Year naturalised
1959
Origin
South Africa
Reason for introduction
Ornamerntal.
Life cycle and dispersal
Perennial. Spreads vegetatively to form dense cover. Plantlets on flowerheads drop off and develop. Seed not observed in NZ.
Other information
Etymology
crassula: From the Latin crassus ‘thick’, meaning ‘rather thick’
National Pest Plant Accord species
This plant is listed in the 2020 National Pest Plant Accord. The National Pest Plant Accord (NPPA) is an agreement to prevent the sale and/or distribution of specified pest plants where either formal or casual horticultural trade is the most significant way of spreading the plant in New Zealand. For up to date information and an electronic copy of the 2020 Pest Plant Accord manual (including plant information and images) visit the MPI website.
Environmental Weed (2024)
This plant is named in a list of 386 environmental weeds in New Zealand 2024 prepared by DOC. 759 candidate species were considered for inclusion on this new comprehensive list of environmental weeds in New Zealand. The species considered were drawn from published lists of weed species, lists of plants that must be reported or managed by law if observed, existing national and regional programmes and agreements for pest management, and species already managed by the Department of Conservation (DOC). Candidate species were then assessed to see if they were fully naturalised and whether they have more than minor impacts in natural ecosystems. Read the full report here.