Classification
Class
Magnoliopsida Brongn.
Order
Brassicales Bromhead
Family
Cruciferae
Genus
Pachycladon Hook.f.
 Nomenclature
Scientific Name:
Pachycladon latisiliquum (Cheeseman) Heenan & A.D.Mitch. in Heenan et al., New Zealand J. Bot. 40: 558 (2002) – as latisiliqua
Synonymy:
  • ≡ Cardamine latisiliqua Cheeseman, Trans. & Proc. New Zealand Inst. 15: 298 (1882 [1883]) – as latesiliqua
  • ≡ Nasturtium latisiliqua (Cheeseman) Cheeseman, Trans. & Proc. New Zealand Inst. 43: 179 (1910 [1911]) – as latesiliqua
  • ≡ Cheesemania latisiliqua (Cheeseman) O.E.Schulz, Notizbl. Bot. Gart. Berlin-Dahlem 10: 552 (1929) – as latesiliqua
  • = Nasturtium gibbsii Cheeseman, Trans. & Proc. New Zealand Inst. 54: 565 (1923)
  • ≡ Cheesemania gibbsii (Cheeseman) O.E.Schulz, Notizbl. Bot. Gart. Berlin-Dahlem 10: 552 (1929)
 Description

Stock stout with deeply descending taproot, up to ± 1·5 cm. diam., crowned by rosette of basal lvs. Radical lvs up to c. 5 cm. long, narrow linear-spathulate, subacute, narrowed into flat petiole, subcoriac., rather distantly and sharply toothed to subentire, glab. or with sparingly ciliate margins. Cauline lvs similar, smaller, uppermost subentire. Infl. up to 5 dm. or more long, much branched; fls ∞ in racemes; pedicels slender, up to 2 cm. long. Sepals c. 3 mm. long, oblong; petals white, c. 6 mm. long, spathulate, long-clawed. Siliques (1·5)–3–6 cm. × 4–6 mm., styles slender, c. 1–2 mm. long. Seeds c. 2 mm. long, broad-oblong in outline, compressed, reddish brown.

[From: Allan (1961) Flora of New Zealand. Volume 1 as Cheesemania gibbsii (Cheeseman) O.E.Schulz]

 Biostatus
Indigenous (Endemic)
 Bibliography
Cheeseman, T. F. 1911 ("1910"): Contributions to a Fuller Knowledge of the Flora of New Zealand: No. 4. Transactions and Proceedings of the New Zealand Institute 43: 178–186.
Cheeseman, T. F. 1923: New species of flowering-plants. Transactions and Proceedings of the New Zealand Institute 54: 565–569.
Cheeseman. T.F. 1883 ("1882"): On some recent Additions to the Flora of New Zealand. Transactions and Proceedings of the New Zealand Institute 15: 298–301.
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. [Not Threatened]
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. [Not Threatened]
Garnock-Jones, P.J. 1987: Orthographic changes for names of New Zealand vascular plants. New Zealand Journal of Botany 25: 118–170. [as Cardamine latisiliqua Cheeseman; Cheesemania latisiliqua (Cheeseman) O.E.Schulz; Nasturtium latisiliqua (Cheeseman) Cheeseman]
Heenan, P.B. 2009: A new species of Pachycladon (Brassicaceae) from limestone in eastern Marlborough, New Zealand. New Zealand Journal of Botany 47: 155–161.
Heenan, P.B.; Mitchell, A.D.; Koch, M. 2002: Molecular systematics of the New Zealand Pachycladon (Brassicaceae) complex: generic circumscription and relationships to Arabidopsis sens. lat. and Arabis sens. lat. New Zealand Journal of Botany 40(4): 543–562.
Kirk,T. 1899: The Students' Flora of New Zealand and the Outlying Islands. Government Printer, Wellington, N.Z. [as Cardamine latisiliqua Cheeseman]
Schulz, O. E. 1929: Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 10(n. 96)