Class
Order
Family
Genus
Classification
Nomenclature
Scientific Name:
Gamochaeta simplicicaulis (Willd. ex Spreng.) Cabrera, Bol. Soc. Argent. Bot. 9: 379 (1961)
Synonymy:
- ≡ Gnaphalium simplicicaule Spreng., Syst. Veg., ed. 16 [Sprengel] 3, 481 (1826)
Description
Annual, 40–120 cm tall, branched or not at base and sometimes sparingly above; stems 1–(3), erect. Basal lvs 0 at flowering or sometimes dead but persisting. Lower cauline lvs apetiolate but lowermost often long-cuneate, densely tomentose on lower surface, sparsely to moderately tomentose on upper, somewhat discolorous, plane, spathulate to narrow-obovate, acute or subacute, mucronate, undulate at least near apex, (25)–40–100 × (2)–5–15–(20) mm; upper cauline lvs smaller, broader based and often ± oblong. Capitula in dense terminal and axillary leafy clusters; clusters remaining discrete or forming terminal spikes. Involucral bracts elliptic-oblong or oblong, acutely narrowed to apiculate apex, (3)–3.5–4 mm long; stereome green; lamina pale brown, darker toward base; gap and margins usually clear, sometimes gap marked reddish purple; outer bracts glabrous. Achenes minutely papillate, c. 0.6 mm long.
[From: Webb et al. (1985) Flora of New Zealand. Volume 4 as Gnaphalium simplicicaule Spreng.]
Biostatus
Exotic
Bibliography
Anderberg, A. A. 1991: Taxonomy and phylogeny of the tribe Gnaphalieae (Asteraceae). Opera Botanica 104: 1–195.
Cabrera, A. L. 1961: Observaciones sobre las Inuleae-Gnaphalineae (Compositae) de America del Sur. Boletín de la Sociedad Argentina de Botánica 9: 359–386.
Drury, D. G. 1971: The American Spicate Cudweeds Adventive to New Zealand: (Gnaphalium Section Gamochaeta - Compositae). New Zealand Journal of Botany 9(1): 157–185. [as Gnaphalium simplicicaule Spreng.]
Sprengel, C.P.J. 1826: Systema vegetabilium [Caroli Linnaei ... ]. Editio decima sexta. Vol. 3. Göttingen.
