Psoralea pinnata
Environmental Weed (2024)
Common names
Dally pine
Biostatus
Exotic
Category
Vascular
Structural class
Trees & Shrubs - Dicotyledons
Flower colours
Blue, Violet/Purple
Detailed description
Much-branched shrub or small tree, to approx. 5m high; twigs sparsely to moderately hairy, ribbed. Leaves imparipinnate, sparsely to moderately hairy, petiolate; leaflets filiform, acute to acuminate, in 1~4 opposite pairs, 15~40mm long; stipules connate at base, lanceolate, 3~6mm long. Flowers axillary, solitary or in small clusters amongst leaves; pedicels 3~8mm long; bracts subtending pedicel lanceolate, 4~8mm long; bracteoles connate into a closed cup on the pedicel. Calyx hairy; calyx teeth < tube, triangular; lowest tooth slightly larger. Wings and keel white to pale blue; standard deeper blue or mauve toward apex, 12~18mm long. Pod glabrous, wrinkled, elliptic, 1-seeded, 4~5mm long; seeds smooth, dark brown. (-Webb et. al., 1988)
Habitat
Terrestrial. Shrublands, especially dry slow growing shrublands, coastal areas, tracksides, road verges, dry gullies, and forest margins. Shrublands
Conservation status
Not applicable
Detailed taxonomy
Family
Ecology
Flowering
November, December, January
Year naturalised
1870
Origin
South Africa
Reason for introduction
Ornamental
Life cycle and dispersal
Perennial.
Other information
Etymology
pinnata: From the Latin pinna ‘feather’, in botany pinnatus ‘pinnate’ refers an arrangement of leaves, veins or branches in rows along a central axis, similar to the structure of a feather.
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.
NVS code
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
PSOPIN