Classification
 Nomenclature
Scientific Name:
Veronica spectabilis (Garn.-Jones) Garn.-Jones in Garnock-Jones et al., Taxon 56: 579 (2007)
Synonymy:
  • Parahebe spectabilis Garn.-Jones in Garnock-Jones & Lloyd, New Zealand J. Bot. 42: 223 (2004)
Holotype: New Zealand; Southland; Takitimu Range; ridge between Tower Peak and Excelsior Peak. Rock outcrops, mossy shelves and ledges. P. J. Garnock-Jones 2045 & W. M. Malcolm, 17 Jan 1991, CHR 470109
Etymology:
The epithet spectabilis is a reference to the large flowers characteristic of this species.
 Description

Low sub-shrub to 0.2 m tall. Stems trailing, decumbent to ascending, mixed eglandular- and glandular-hairy; hairs uniform. Leaf bud indistinct; leaves separating while very small, opposite-decussate, erecto-patent to spreading; lamina sub-coriaceous, broadly obovate to spathulate, 4.5–13.0 mm long, 2.5–6.0 mm wide, dull dark green to purplish above and beneath; veins not evident; surfaces sparsely to densely mixed glandular and eglandular hairy; margins mixed ciliate and glandular ciliate, crenate to lobed, rarely entire; lobes in 1–2 pairs; apex rounded or truncate; base cuneate; petiole 1–3 mm long. Inflorescence a lateral few-flowered raceme, 10–25 mm long, or a solitary bibracteate flower; flowers crowded, 2–3 or sometimes 1, all bisexual; bracts opposite, linear to spathulate, > pedicels; pedicels erecto-patent to sub-erect, 2.5–5.0 mm long, mixed glandular- and eglandular-hairy all around. Calyx lobes usually 4, sometimes a short linear 5th lobe present, sub-acute to obtuse, 5.5–9.0 mm long, equal, mixed glandular- and eglandular-hairy. Corolla 18–25 mm diameter; tube white or greenish, 6–7 mm long, = or slightly < calyx, glabrous; lobes 4, white, sub-erect to recurved, sub-equal, obovate to orbicular, 9–13 mm long, rounded; nectar guides absent. Stamen filaments white, 3–4 mm long; anthers magenta or purple. Style glabrous, 3.5–4.5 mm long. Capsules angustiseptate, emarginate or truncate, mixed glandular- and eglandular-hairy at apex, 4–5 mm long, 4–5 mm at widest point. Seeds ovoid to ellipsoid, weakly flattened, very finely papillate, straw-yellow to pale brown, 1.0–1.4 mm long.

 Recognition
Morphological features to distinguish the snow hebes in Veronica (sensu lato: i.e. Chionohebe, Hebejeebie, Parahebe p.p.). Species are ordered according to similarity of their habit.
 

birleyi

spectabilis

trifida

densifolia

thomsonii

pulvinaris

chionohebe

ciliolata

Habit

lax sub-shrub

lax sub-shrub

lax sub-shrub

lax sub-shrub

cushion plant

cushion plant

cushion plant

cushion plant

Stem hairs

eglandular & a few glandular, spreading

mixed glandular & eglandular, spreading

eglandular, retrorse

eglandular, retrorse

glabrous

glabrous

glabrous

glabrous

Leaf size (mm)

4.0–12 × 2.5–11

4.5–13 × 2.5–6.0

2–10 × 1–7

2–6.5 × 0.7–3

1.7–4.7 × 0.7–2.6

1.8–4.8 × 0.5–2

1.75–5 × 0.75–2.25

1.75–4.5 × 0.8–2.8

Leaf margins

deeply crenate to lobed

deeply crenate to lobed

shallowly toothed to lobed, rarely entire

usually entire, rarely 1–2 teeth or lobes

entire

entire

entire

entire

Lamina

subcoriaceous, flat; margin not thickened, smooth

subcoriaceous, flat; margin not thickened, smooth

subcoriaceous, flat; margin not thickened, smooth

coriaceous, keeled, with thickened papillate margin

thin, flat; margin not thickened, smooth

thin, flat; margin not thickened, smooth

thin, flat; margin not thickened, smooth

thin, flat; margin not thickened, smooth

Leaf hairs: adaxial

scattered eglandular

mixed eglandular & glandular

glabrous

glabrous

eglandular: in broad band across middle, occasionally scattered distally

eglandular appressed: scattered or in a central patch on distal half

absent

absent or isolated and scattered in distal ½

Leaf hairs: abaxial

scattered eglandular

mixed eglandular & glandular

glabrous

glabrous

glabrous, or stiff, eglandular, isolated distal hairs

glabrous or eglandular appressed scattered distally

absent or isolated in distal ½

absent or isolated and scattered in distal ½

Leaf hairs: margin

eglandular-ciliate

mixed eglandular & glandular-ciliate

long glandular-ciliate

stiff eglandular-ciliate

ciliate in basal ⅔ with apical tuft

eglandular appressed: ciliate

absent or scattered cilia

ciliate throughout or in basal or distal half, usually  with apical tuft

Sexual system

cosexual

cosexual

cosexual

cosexual

dioecious

dioecious

dioecious

dioecious

Inflorescence

2–3 flowers, sometimes solitary bibracteolate

2–3 flowers, sometimes solitary bibracteolate

2–3 flowers, sometimes solitary bibracteolate

solitary bibracteolate

solitary bibracteolate

solitary bibracteolate

solitary bibracteolate

solitary bibracteolate

Peduncle (mm)

2–4

5–15

2–10

0

0

0

0

0

Pedicel (mm)

0.3–1.5

2.5–5

0.5–7

0

0

0

0

0

Calyx lobes

4

4

4

5

5

5

5

5

Corolla lobes

(4–)5(–6)

4(–5)

5(–6)

5(–6)

5

5

5

5

Corolla diameter (mm)

7–10

18–25

15–20

7–16

2.5–5

2.5–6

1.5–4.1

2.1–6.5

Corolla shape

funnelform

funnelform

funnelform

funnelform

rotate

rotate

rotate

rotate

Capsule size (mm)

3–4 × 3–4

4–5 × 4–5

4.5–6 × 2.5–3

2.7–5 × 1.7–4.25

1.5–3 × 1–2

1–3 × 1.2–2.7

1.9–2.5 × 1.5–1.9

2.5–3.5 × 1.4–3.1

Capsule hairs

glabrous

mixed glandular & eglandular-hairy at apex

glandular-ciliate, sometimes glabrous

glabrous

glabrous to densely hairy at apex

eglandular-hairy, especially at apex

absent

absent or apical

 Distribution

South Island: Southland. Known only from the Takitimu Mountains (Tower Peak, Excelsior Peak, Revelation Peaks, headwaters of Spence Burn).

 Habitat

High alpine rock crevices and mossy ledges. Recorded elevations range from 1340 to 1521 m.

 Biostatus
Indigenous (Endemic)
 Hybridisation

A putative hybrid V. ciliolata × spectabilis has been collected once (OTA 31255).

 Phenology

Flowers: January; fruits: March–April (persisting longer).

 Cytology

Chromosome number not determined.

 Notes

Veronica spectabilis is classified in V. subg. Pseudoveronica sect. Hebe and informally in the “snow hebe” group (Albach & Meudt 2010). ITS sequence data (Albach & Meudt 2010) place V. spectabilis as sister to V. trifida and V. densifolia with moderate support. Chloroplast DNA sequences also support a relationship to V. densifolia, but inferred relationships within the wider group are different (Albach & Meudt 2010), perhaps due to chloroplast exchange among species. Morphology suggests a close relationship to V. birleyi, a hypothesis that has not yet been tested with molecular data.

The seed description is based on very limited material and might not represent the range present.

 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.
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [as Parahebe spectabilis Garn.-Jones] [Naturally uncommon]
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Naturally Uncommon]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [as Parahebe spectabilis Garn.-Jones] [Naturally Uncommon]
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.
Garnock-Jones, P.J.; Lloyd, D.G. 2004: A taxonomic revision of Parahebe (Plantaginaceae) in New Zealand. New Zealand Journal of Botany 42: 181–232.