Classification
Class
Magnoliopsida Brongn.
Order
Caryophyllales Juss. ex Bercht. & J.Presl
Family
Amaranthaceae
Genus
Dysphania R.Br.
 Nomenclature
Scientific Name:
Dysphania pusilla (Hook.f.) Mosyakin & Clemants, J. Bot. Res. Inst. Texas 2: 427 (2008)
Synonymy:
  • ≡ Chenopodium pusillum Hook.f., Handb. New Zealand Fl. 231 (1864)
 Description

Annual, puberulent and glandular-scaly herb. Stems branching, decumbent, 3–10–(20) cm long, often forming a small flat cushion. Petioles usually 1–3–(5) mm long, slender. Lamina 2–4–(10) × 2–4–(10) mm, suborbicular, broadly ovate or ovate-oblong, glandular-puberulent on both sides, usually entire or slightly sinuate, occasionally shallowly lobed; base broad-cuneate to rounded; apex obtuse. Fls minute, in axillary, sessile glomerules. Perianth segments (3)–4–(5), narrow-oblong, membranous at least on margins, glandular- puberulent and farinose, scarcely accrescent, not completely investing fr. Stamen usually 1. Seed vertical, 0.5–0.8 mm long, laterally compressed, broadly ellipsoid or subglobose, flattened; pericarp easily detached; testa glossy, minutely punctate or almost smooth.

[From: Webb et al. (1985) Flora of New Zealand. Volume 4 as Chenopodium pusillum Hook.f.]

 Biostatus
Indigenous (Endemic)
 Bibliography
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76. [as Chenopodium pusillum Hook.f.]
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. [Nationally Endangered]
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. [Extinct]
Hooker, J.D. 1864: Handbook of the New Zealand Flora: a systematic description of the native plants of New Zealand and the Chatham, Kermadec's, Lord Auckland's, Campbell's and Macquarie's Islands. Part I. Reeve, London.
Mosyakin, S.L.; Clemants, S.E. 2008: Further transfers of glandular-pubescent species from Chenopodium subg. Ambrosia to Dysphania (Chenopodiaceae). Journal of the Botanical Research Institute of Texas 2(1): 425–431.
Shepherd, K.A.; Wilson, P.G. 2008: New combinations in the genus Dysphania (Chenopodiaceae). 18: 267–272.