Hebe: Named after Hebe, in Greek Mythology she was daughter of Hera and Zeus, cupbearer of the gods and goddess of youth.
acutiflora: From the Latin acutus 'sharp-pointed' and flores 'flowers'.
Northland River Koromiko
Current Conservation Status
2012 - At Risk - Naturally Uncommon
Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB
Previous Conservation Status
2009 - At Risk - Naturally Uncommon
2004 - Range Restricted
2012 - PD, Sp
2009 - PD
Hebe acutiflora Cockayne
Shrub bearing long narrow pointed pairs of leaves and spikes of small white flowers inhabiting river banks in Northland. Leaves to 85mm long by 9mm wide, hairy on margin (lens needed), leaf bud without small gap at base. Flower spike to 14cm long. Fruit a dry flattened capsule.
Vascular - Native
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.
Dicotyledonous Trees & Shrubs
Veronica acutiflora Benth. nom. illeg., Veronica ligustrifolia var. acutiflora Hook.f.; Veronica rivalis Garn.-Jones
Endemic. North Island, Northland where it is known from both the Kerikeri River and Puketotara Stream (near Kerikeri), Waipapa River (Puketi Forest) and Waipoua River.
A forest dwelling, rheophytic species of stream and river banks that are prone to frequent flooding.
Spindly, brittle, openly branched 1-1.5 m tall shrub of riverine habitats, favouring sites prone to sudden flooding. Branches erect, rather brittle, brown to grey-brown; branchlets spindly, green, bifariously or occasionally uniformly puberulent, or rarely glabrous; internodes 1.5-29 mm; leaf scars weakly evident or obscure. Leaf bud distinct without sinus. Leaves 15-118 x 3-12 mm, dull dark green to yellow-green, linear to linear-lanceolate, membranous, apex acute to obtuse, margin ciliolate, entire or finely, and distantly denticulate. Inflorescence a lateral, usually unbranched raceme 27-135 mm long, bearing 13-81 flowers; peduncle 5-19 mm; rachis 2-117 mm, longer than or equal to subtending leaves. Bracts alternate, narrowly deltoid or lanceolate, acute, outer surface hairy. Flowers white or tinged pale mauve; pedicels 0.5-5 mm, longer than or equal to bracts, usually recurved in fruit. Calyx 2-3.5 mm; lobes very narrowly deltoid or lanceolate, acute to acuminate, densely to sparsely hairy on the outer surface. Corolla tube 1.3-2.8 x 1.6-01.8 mm, white to pale mauve, shortly funnelform, much shorter than or equal to calyx, internally densely hairy, externally rarely so; lobes white or tinged pale mauve at anthesis, lanceolate, acute, or subacute, suberect to patent, usually longer than corolla tube (sometime shorter), sometimes ciliate and/or hairy on the outer surface. Stamen filaments 4-6.5 mm; anthers 1.9-2.2 mm, mauve. Ovary 0.9-1.2 mm, narrowly ovoid, usually sparsely or minutely hairy; style 3.5-5.5 mm. Capsules 2-3.5 x 1.6-3 mm, pale brown to brown, obtuse or subacute, occasionally sparsely hairy. Seeds 0.9-1.4 x 0.9 -1.1 mm, straw-yellow, strongly flattened, ellipsoid to discoid, weakly winged.
Recognised by the rheophytic ecology, linear to linear-lanceolate leaves, absence of a sinus, calyces which are hairy on the outside, and very short corolla tube, which is shorter than or equal to the length of calyx. The corolla lobes are sharply acute. It is perhaps most similar to Hebe flavida Bayly, Kellow et de Lange, H. angustissima (Cockayne) Bayly et Kellow, H. ligustrifolia (A.Cunn.) Cockayne et Allan and Hebe stricta (Benth.) L.B.Moore. It differs from all but H. angustissima by its rheophytic ecology, spindly shrub habit, and narrow linear, linear-lanceolate leaves. From H. angustissima by the corolla tube which is shorter than or equal to the calyces, while in H. angustissima it is distinctly longer than the calyx.
January - June
Violet / Purple,White
January - December
Easily grown from semi-hardwood cuttings and fresh seed. Forms a small bushy shrub that needs frequent pruning to maintain a good shape. Tends to be rather short-lived, and does best in semi-shade with a permanently moist but free draining soil.
A very localised Northland endemic which has its stronghold in the Waipapa River area of Puketi Forest and probably also the Waipoua River. It is close to extinction along the Kerikeri due mainly to the spread of aggressive weeds (many derived from nearby houses). However, aside from the decline known to be happening there it seems secure elsewhere. In fact the exact distribution of this species remains unknown, and it may be even more widespread than currently believed
2n = 40
Life Cycle and Dispersal
Seeds are wind dispersed (Thorsen et al., 2009).
References and further reading
Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11: 285-309
This page last updated on 8 Oct 2014