Classification
 Nomenclature
Scientific Name:
Veronica stenophylla Steudel, Nomencl. Bot., ed. 2, 2, 760 (1841)
Synonymy:
  • Veronica angustifolia A.Rich., Essai Fl. Nouv.-Zél., 187 (1832) nom. illeg., non Veronica angustifolia Fisch. ex Link 1821
  • Hebe stenophylla (Steudel) Bayly & Garn.-Jones in Bayly et al., New Zealand J. Bot. 38: 173 (2000)
Lectotype (designated by Bayly et al. 2000): Herb. Richard, Veronica angustifolia Nob., Nlle Zelande, P
  • = Veronica squalida Kirk, Trans. New Zealand Inst. 28: 528 (1896)
Lectotype (designated by L.B.Moore, in Allan 1961): Matori, Nelson Province, T. Kirk, 9 Feb 1877, WELT 5339
  • = Hebe angustifolia Cockayne & Allan, Trans. New Zealand Inst. 57: 23 (1926)
Etymology:
The epithet stenophylla is derived from the Greek for narrow-leaved, a translation of the Latin epithet for the replaced illegitimate name V. angustifolia.
 Description

Low-spreading to rounded bushy shrub to 2 m tall. Stems usually erect, sometimes decumbent or ascending, usually glabrous or sometimes eglandular-puberulent; hairs bifarious to uniform. Leaf bud distinct, its leaves appressed at margins until fully grown; sinus absent. Leaves opposite-decussate, spreading and often recurved; lamina sub-coriaceous, linear to narrowly lanceolate, occasionally lanceolate to elliptic, 16–87 mm long, 2.5–6.5, sometimes to 10 mm, wide, usually dull, rarely more or less glossy, pale to dark green above, dull pale green beneath; midrib evident and two lateral veins sometimes visible; surfaces with small, pitted depressions above, each with a minute glandular hair, eglandular-hairy along midrib above; margin usually glabrous, occasionally pubescent, entire; apex acute; base cuneate; petiole indistinct, broadly winged, 1–2 mm long. Inflorescence a lateral raceme, 25–95 mm long; flowers crowded, 35–170, female or bisexual on separate plants, ⚥ ≥ ♀; bracts alternate, linear to ovate or deltoid, usually ≤ pedicels; pedicels erecto-patent to spreading, 0.5–5.0 mm long, usually glabrous or with a few short hairs, sometimes puberulent. Calyx lobes 4, obtuse to acute, 1.0–1.5 mm long, sub-equal to unequal, usually eglandular-ciliate or sometimes mixed glandular- and eglandular-ciliate. Corolla 3.5–5.0 mm diameter; tube white, 1.8–4.9 mm long, > calyx usually glabrous or sometimes eglandular-hairy inside; lobes 4, white or tinged purplish, spreading to recurved, unequal, elliptic to orbicular, 1.5–2.0 mm long, obtuse to rounded, posterior sometimes emarginate; nectar guides absent. Stamen filaments white, 2.5–4.4 mm long; anthers magenta. Style glabrous, 3–7 mm long. Capsules latiseptate, acute to obtuse, glabrous, 2.0–3.5 mm long, 0.8–3.0 mm at widest point. Seeds ellipsoid to oblong, flattened, smooth, straw-yellow to pale brown, 0.9–1.5 mm long.

 Key
1Leaves lanceolate to elliptic, mostly about 4× as long as wide; lamina glossy on abaxial surfacevar. oliveri
Leaves usually linear to linear-lanceolate, sometimes narrowly elliptic to lanceolate, mostly 5–10× as long as wide; lamina dull to slightly glossy on abaxial surface2
2Pedicels usually glabrous or with a few hairs on the adaxial side, rarely puberulent; corolla tube 3.0–4.9 mm long, glabrous insidevar. stenophylla
Pedicels puberulent; corolla tube 1.8–3.5 mm long, hairy insidevar. hesperia
 Recognition
Identification table of V. parviflora, V. stenophylla, V. strictissima, and V. traversii.
 

parviflora

stenophylla

strictissima

traversii

Habit

shrub or small tree up to 12 m tall

shrub to 2 m tall, sometimes sprawling

rounded shrub to 2 m tall

shrub to 2.5 m tall

Leaf length (mm)

8–76

16–87

9–49

16–44

Leaf width (mm)

1.5–7.0

2.5–10.0

3.0–8.0

2.5–9.0

Leaf margin

minutely hairy

glabrous, or occasionally pubescent

glabrous, papillate, or with very short, antrorse, tapered, eglandular hairs

scabrous, ciliate or pubescent

Leaf adaxial (upper) surface

smooth

minutely pitted, especially near margins; each pit with a minute glandular hair

smooth

smooth

Calyx lobes

mixed eglandular- and glandular-ciliate; the glandular hairs with 2 terminal cells

usually eglandular-ciliate; if also glandular, the glandular hairs mostly with 1 terminal cell; hairs with 2 terminal cells rare

mixed eglandular- and glandular-ciliolate, sometimes sparsely so; the glandular hairs with 2 terminal cells

eglandular-ciliolate or mixed eglandular- and glandular-ciliolate; glandular hairs with 2 terminal cells

Corolla tube

up to 2 × calyx; > corolla lobes

2–4 × calyx; > corolla lobes

= or slightly > calyx; < corolla lobes

3–4 × calyx; > corolla lobes

Corolla tube

hairy inside

usually glabrous; sometimes hairy (especially var. hesperia from NW Nelson)

hairy inside

hairy inside

Capsule

c. 2 × calyx

c. 2 × calyx

c. 3 × calyx

3–4 × calyx

Distribution

North Island, mostly in the east; South Island (coastal Marlborough only)

central and east North Island and outliers near Hamilton; South Island north of a line from Westport to Cape Campbell

South Island (Banks Peninsula only)

South Island (Marlborough, Canterbury south to Four Peaks Range (absent from Banks Peninsula)

 Distribution

North Island: Auckland (a few sites near Hamilton; e.g., Narrows Bridge, Waikato River), Gisborne (a few scattered sites in the south), Taranaki (near Whanganui and in the Ruahine Range only), southern North Island (Hawke’s Bay, Kaweka Range, Kaimanawa Mountains, and Ruahine Range, Manawatu, Wairarapa coast).

South Island: Western Nelson, Sounds Nelson, Marlborough, Westland and Marlborough (north of a line from Cape Farewell to Cape Campbell.

 Habitat

Bluffs, terraces, hillsides, open rocky sites, stream banks, gorges, and roadsides. Recorded elevations range from 0 to 1280 m.

 Biostatus
Indigenous (Endemic)
Number of subspecific taxa in New Zealand within Veronica stenophylla Steudel
CategoryNumber
Indigenous (Endemic)3
Total3
 Cytology

2n = 40 (see Bayly & Kellow 2006, as Hebe stenophylla).

 Notes

Veronica stenophylla is classified in V. subg. Pseudoveronica sect. Hebe and the informal group “Occlusae” (Albach & Meudt 2010; Bayly & Kellow 2006).

Beever (1991) recorded koromiko tāranga and kōkōmuka tāranga as names in Māori for V. parviflora, but that species has since been revised (Bayly et al. 2000), and now it is unclear whether the name applies to V. parviflora​​​​​​​, V. stenophylla, or both.

 Bibliography
Albach, D.C.; Meudt, H.M. 2010: Phylogeny of Veronica in the Southern and Northern Hemispheres based on plastid, nuclear ribosomal and nuclear low-copy DNA. Molecular Phylogenetics and Evolution 54: 457–471.
Bayly, M.J.; Garnock-Jones, P.J.; Mitchell, K.A.; Markham, K.R.; Brownsey, P.J. 2000: A taxonomic revision of the Hebe parviflora complex (Scrophulariaceae), based on morphology and flavonoid chemistry. New Zealand Journal of Botany 38(2): 165–190.
Bayly, M.J.; Kellow, A.V. 2006: An Illustrated Guide to New Zealand Hebes. Te Papa Press, Wellington.
Beever, J. 1991: A dictionary of Maori plant names. Auckland Botanical Society Bulletin 20: 1–75.
Cockayne, L.; Allan, H.H. 1926: The present taxonomic status of the New Zealand species of Hebe. Transactions of the New Zealand Institute 57: 11–47.
Garnock-Jones, P.J. 2023: Veronica. In: Breitwieser, I. (ed.) Flora of New Zealand – Seed Plants. Fascicle 9. Manaaki Whenua Press, Lincoln.
Garnock-Jones, P.J.; Albach, D.; Briggs, B.G. 2007: Botanical names in Southern Hemisphere Veronica (Plantaginaceae): sect. Detzneria, sect. Hebe, and sect. Labiatoides. Taxon 56: 571–582.
Kirk, T. 1896: Notes on certain Veronicas, and descriptions of new species. Transactions of the New Zealand Institute 28: 515–531.
Richard, A. 1832: Essai d'une Flore de la Nouvelle Zélande. In: Dumont d'Urville, J. Voyage de découvertes de l'Astrolabe. Botanique. Tastu, Paris.
Steudel, E.G. 1841: Nomenclator Botanicus. Editio secunda. Vol. 2. typis et sumptibus J.G. Cottae, Stuttgartiae, Tubingae.