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This species is accepted, and its native range is Bolivia (Santa Cruz).

[KBu]

Hind, D.J.N. 2013. The identity of Cosmos herzogii (Compositae: Heliantheae: Coreopsidinae) from Santa Cruz, Eastern Bolivia. Kew Bulletin 68: 505. https://doi.org/10.1007/s12225-013-9462-0

Morphology General Habit
Straggly perennial, 0.30 – 1 m tall and 0.4 – 1 m across; rootstock a deep taproot
Morphology Reproductive morphology Flowers Disc
Disc florets 16 – 20, hermaphrodite, corolla basal tube short, c. 1 mm long, expanding into long upper throat, throat ± cylindrical, 6 – 7 × 1.5 – 2 mm, sparsely pubescent throughout, hairs appressed uniseriate, multicellular and eglandular, corollas 5-lobed, lobes triangular, 1 × 0.7 mm, erect, apices usually slightly incurved and touching base of anther cylinder, conspicuously sub-marginally dark-veined (conspicuously so in herbarium material), apex of lobes mammillate inside, smooth and glabrous outside; anther filaments glabrous, bases inserted at apex of corolla tube, anther collar conspicuous and appearing balusterform; anther cylinder dark brown, conspicuously and exserted from corolla tube at maturity; connective and mid-vein of apical anther appendage dark-brown to black and shiny (in herbarium material), apical anther appendages triangular, broader than long, constricted at base above pollen sacs; pollen orange; style base lacking basal node, glabrous, style shaft glabrous, style arms yellow, spreading and conspicuously exserted from anther cylinder, short-papillate above from bifurcation to spreading portion, long-papillate outside from base of spreading portion through to conspicuous long-appendage
Morphology Reproductive morphology Flowers Florets
Ray florets neuter, 7 or 8, ray limbs narrowly- to broadly- elliptic, 1.5 – 2 × 0.25 – 0.45 (− 0.9) cm, 5 – 9 veined (venation conspicuous and brown against the yellowish-cream of ray lamina in herbarium material, often with 2 outermost sub-marginal), glabrous above, sparsely pubescent above venation beneath, hairs appressed, uniseriate, multicellular and eglandular, limb apices entire or 2-toothed
Morphology Reproductive morphology Fruits
Achenes erect when immature and rotate when mature, 9 – 12 mm long × 1 – 1.5 mm across, body somewhat compressed and straight, slightly curved lengthwise, or with apical portion curved markedly, body glabrous, with one rib/angle on dorsal and ventral surfaces and 3 – 4 minor striae on either side of the main rib/angle, usually mid- to pale- brown or fawnish, apices erostrate; carpopodium scarcely discernible, pale and procurrent with basal tissue; pappus of 2 – 4 short erect or abortive awns (Fig. 1P) or epappose (Fig. 1Q), awns 0.3 – 1 mm when present with few retrorse barbs near apices
Morphology Reproductive morphology Inflorescences
Inflorescence markedly overtopping leafy stems, pedicel (of solitary capitula) or basal peduncle of few-headed cymes (below primary branching), 5 – 9.5 (− 15) cm, ultimate pedicels 1.5 – 5.5 cm long, upper leaf-like bracts opposite at base of first-order branching, solitary and alternate with higher-order capitula, all simple, 10 – 35 mm long × c. 1 mm wide, linear, grooved above, margins entire, apices acute, often purplish; buds purple
Morphology Reproductive morphology Inflorescences Capitulum
Capitula heterogamous and radiate, 2.5 – 3.8 cm diam.; involucre globose in bud, very broadly campanulate in flower; phyllaries biseriate, dimorphic, outer phyllaries 8, base with a distinct basal bulge, strongly recurved in flower and fruit, 4 – 5 × 0.5 mm, glabrous, green throughout, inner phyllaries 8, at first erect to slightly recurved later recurving in mature capitula and in fruit, 7 – 8 × 1.5 mm, margins entire and glabrous, scarious, central portion usually brownish (in dried material) but coloured portion ending before tip, often 4 – 5-veined, veins dark brown (in dried material), apices ciliate to penicillate; receptacle flat, paleaceous; paleae at first inconspicuous between disc florets except for outermost that resemble narrower inner phyllaries, inner later prominent and erect to recurved, 7 – 8 × 1 mm, lamina with broad hyaline pale margins, middle of lamina usually coloured, 3 – 8-veined, venation brownish (becoming more conspicuous in dried material), apices acute, ciliate (described by Sherff as ‘irregulariteracriterque 1 – 2-dentatae,…’ but not seen in material examined here)
Morphology Stem
Stems glabrous, bases woody, leafless, with conspicuous nodal scars, upper stems simple to few- or many- branched, laxly to densely leafy
Type
Type: ‘Theodor Herzog 496, an abundant “half-shrub” (“Halbstrauch”) on sandstone, alt. about 900 m, summit of Cerro San Miserate, Chiquitos, Department of Santa Cruz, Bolivia, May, 1907’. (holotype B†; isotype G – 00077258).

Native to:

Bolivia

Bidens herzogii (Sherff) D.J.N.Hind appears in other Kew resources:

First published in Kew Bull. 68: 506 (2013)

Accepted by

  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Literature

Kew Bulletin

  • Bot. Gaz. 96 (1): 148 (1934).
  • Cárdenas, M. (1951). Notes on Eastern Bolivian Cactaceae. Natl. Cact. Succ. J. 6 (1): 8 – 9.
  • Hind, [D. J.] N. & Fay, M. F. (2003). Plate 461. Cosmos atrosanguineus. (Compositae). Plants in Peril 26. Curtis’s Bot. Mag. 20 (1): 40 – 48.CrossRefGoogle Scholar
  • Hind, [D. J.] N. (2005). Plate 532. Cosmos peucedanifolius. (Compositae). Curtis’s Bot. Mag. 22 (3): 161 – 168.
  • Hind, [D. J.] N. (2009). An annotated preliminary checklist of the Compositae of Bolivia. [See www.kew.org/science/tropamerica/boliviacompositae for the web version and www.kew.org/science/tropamerica/boliviacompositae/checklist.pdf for the PDF file of the checklist]
  • Karis, P. O. & Ryding, O. (1994). Tribe Heliantheae. In: K. Bremer, Asteraceae: Cladistics & Classification, pp. 559 – 624. Timber Press, Portland.
  • Kiger, R. W. (2006). Cosmos. In: Flora North America Editorial Committee, Flora of North America. Magnoliophyta: Asteridae (in part): Asteraceae, part 3, vol. 21: 203 – 205. Oxford University Press, Oxford, New York.
  • McVaugh, R. (1984). Cosmos Cav. In: W. R. Anderson (gen. ed.), Flora Novo-Galiciana, a descriptive account of the vascular plants of Western Mexico. Vol. 12. Compositae, pp. 262 – 281. The University of Michigan Press, Ann Arbor.
  • Panero, J. L. [2006] (2007). Tribe Coreopsideae. In: Asterales (J. Kadereit & C. Jeffrey (vol. eds)) of K. Kubitzki (series ed.), The Families and Genera of Vascular Plants. Vol. 8. pp. 406 – 417. Springer-Verlag, Berlin, Heidelberg, New York.
  • Robinson, H. (1981). A revision of the tribal and subtribal limits of the Heliantheae (Asteraceae). Smithsonian Contr. Bot. 51: 1 – 102.
  • Robinson, H. (2006). Cosmos. In: G. Harling & L. Andersson (eds), Flora of Ecuador 77 (1): 190(6). Compositae-Heliantheae, Part 1: Introduction, genera A – L, pp. 121 – 125. Botanical Institute, Göteborg University, Göteborg & Section for Botany, Riksmuseum, Stockholm.
  • Sherff, E. E. (1932). Revision of the genus Cosmos. Field Mus. Nat. Hist., Bot. Ser. 8 (6): 401 – 447.
  • Sherff, E. E. (1934). Some new or otherwise noteworthy members of the families Labiatae and Compositae. Bot. Gaz. 96 (1): 136 – 153.
  • Sherff, E. E. (1955). Cosmos. In: H. W. Rickett, D. P. Rogers & D. D. Keck (ed. comm.), North American Flora. Compositae–Heliantheae–Coreopsidinae (E. E. Sherff & E. J. Alexander), Ser. 2 (2): 130 – 146. New York Botanical Garden.
  • Sherff, E. E. (1964). Some new or otherwise noteworthy Coreopsidinae (Compositae) from Mexico. Brittonia 16 (1): 58 – 73.CrossRefGoogle Scholar

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
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Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0