- Taxon
- Gallery
Classification
Nomenclature
Scientific Name:
Euchiton sphaericus (Willd.) Holub, Folia Geobot. Phytotax. 9: 271 (1974)
Synonymy:
- ≡ Gnaphalium sphaericum Willd., Enum. Pl. [Willdenow] 868 (1809)
- ≡ Euchiton sphaericus (Willd.) Anderb., Opera Bot. 104: 167 (1991) nom. illeg., non Euchiton sphaericus (Willd.) Holub 1974, nom. superfl.
- = Gnaphalium hemisphaericum Hornem. (1815)
- = Euchiton forsteri Cass., Dict. Sci. Nat. 56: 216 (1828)
- = Gnaphalium involucratum var. β ramosum DC., Prodr. [A. P. de Candolle] 6, 236 (1838)
- = Gnaphalium virgatum Banks & Sol. ex Hook.f., Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 139 (1853)
- = Leontopodium japonicum var. sandwicense H.Lév., Repert. Spec. Nov. Regni Veg. 10: 121 (1911)
- = Gnaphalium morii Hayata, Icon. Pl. Formosan. 58 (1919)
Vernacular Name(s):
Common cudweed; Japanese cudweed
Description
Annual, without stolons; stems 1-few, ascending to erect, simple or much- branched in lower 1/2, (1)–3–50 cm tall. Lvs all cauline at flowering, apetiolate, densely white-tomentose on lower surface, becoming sparsely tomentose to ± glabrous on upper, plane, usually spathulate to oblanceolate, sometimes elliptic or almost linear, cuneate, usually acute, rarely obtuse, mucronate, (6)–15–70–(100) × 2–10–(15) mm. Capitula c. 1 mm diam., numerous in dense globular terminal clusters, very rarely few axillary clusters below; longest subtending lvs c. 1–3× diam. of cluster. Involucral bracts narrow-oblong, gradually tapered to a blunt apex, 3.5–4.5 mm long; stereome green; lamina clear to pale or dark brown; gap and margins clear or tinged reddish purple. Achenes minutely papillate, 0.7–0.8 mm long.
[From: Webb et al. (1985) Flora of New Zealand. Volume 4 as Gnaphalium sphaericum Willd.]
Biostatus
Indigenous (Non-endemic)
Bibliography
Anderberg, A. A. 1991: Taxonomy and phylogeny of the tribe Gnaphalieae (Asteraceae). Opera Botanica 104: 1–195.
Cassini de, A. H. G. 1828: Dictionnaire des Sciences Naturelles 56
Connor, H.E.; Edgar, E. 1987: Name changes in the indigenous New Zealand flora, 1960–1986 and Nomina Nova IV, 1983–1986. New Zealand Journal of Botany 25: 115–170. [as Gnaphalium sphaericum Willd.]
de Candolle, A.P. 1838 ("1837"): Prodromus Systematis Naturalis Regni Vegetabilis. Vol. 6. Treuttel et Würtz, Paris.
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]
Drury, D. G. 1972: The Cluster and Solitary-headed Cudweeds Native to New Zealand: (Gnaphalium Section Euchiton-Compositae). New Zealand Journal of Botany 10: 112–179.
Hayata, B 1919: Icones Plantarum Formosanarum nec non et Contributiones ad Floram Formosanam. Vol. 8. Bureau of Productive Industries, Taihoku [Taipei]
.
Holub, J. 1974: New Names in Phanerogamae 3. Folia Geobotanica et Phytotaxonomica 9(3): 261–275.
Hooker, J.D. 1852–1853 ("1853"): The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. II. Flora Novae-Zelandiae. Part I. Flowering plants. Lovell Reeve, London.
Léveillé, H. 1912 ("1911"): Plantae novae sandwicenses. Repertorium Specierum Novarum Regni Vegetabilis 10: 120–124.
Ward, J.M.; Breitwieser, I. 1998: New combinations in Euchiton (Compositae - Gnaphalieae) from New Zealand. New Zealand Journal of Botany 36(2): 303–304.
Willdenow, C.L. von 1809: Enumeratio Plantarum Horti Regii Botanici Berolinensis. Berlin.
