Literature

Authors	Year	Title
A. Mur{\'ın, Chaudhri I. I.	1970	IOPB Chromosome number reports: XXVI
B. Zeide	1978	Reproductive behavior of plants in time
E. Zamski, Ucko, O., Koller, D.	1983	The mechanism of root contraction in Gymnarrhena micrantha, a desert plant.
M. Fei Yam, Basir, R., Asmawi, M. Zaini	2008	Antioxidant and Hepatoprotective Activities ofElephantopus tomentosusEthanol Extract
S. Lev-Yadun	2000	Why are underground flowering and fruiting more common in Israel than anywhere else in the world?
A. H. Wortley, Funk, V. A., Robinson, H., Skvarla, J. J., Blackmore, S.	2007	A search for pollen morphological synapomorphies to classify rogue genera in Compositae (Asteraceae)
D. A. Willard, Bernhardt, C. E., Weimer, L., Cooper, S., Gamez, D., Jensen, J.	2004	Atlas of Pollen and Spores of the Florida Everglades
T. Walter	1788	Flora caroliniana: secunda systema vegetabilium perillustris Linnaei digesta...
C. von Linné, Salv, ii. L.	1753	Caroli Linnaei ... Species plantarum :exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas...
D. L. Venable, Burquez A.	1989	Quantitative genetics of size, shape, life history, and fruit characteristics of the seed-heteromorphic composite Heterosperma pinnatum. I. Variation within and among populations.
N. R. C. S. USDA	2010	The PLANTS Database
L. E. Urbatsch, Cox P. B.	2006	Rudbeckia
L. E. Urbatsch, Baldwin, B. G., Donoghue, M. J.	2000	Phylogeny of the Coneflowers and Relatives (Heliantheae: Asteraceae) Based on Nuclear rDNA Internal Transcribed Spacer (ITS) Sequences and Chlorplast DNA Restriction Site Data
R. J. Tyrl	1969	Cytogeography of Achillea Millefolium in Western Oregon
B. L. Turner, King R. M.	1964	Chromosome Numbers in the Compositae. VIII. Mexican and Central American Species
D. K. Trock	2006	Achillea
I. E. Jordon-Thaden, Louda S. M.	2003	Chemistry of Cirsium and Carduus: a role in ecological risk assessment for biological control of weeds?
J. L. Strother	2006	Flora of North America
J. L. Strother	2006	Stokesia
J. S. Strijk, Noyes, R. D., Strasberg, D., Cruaud, C., Gavory, F., Chase, M. W., Abbott, R. J., Thébaud, C.	2012	In and out of Madagascar: Dispersal to Peripheral Islands, Insular Speciation and Diversification of Indian Ocean Daisy Trees (<italic>Psiadia</italic>, Asteraceae)
A. B. Stevens, Gast, K. L. B., O’Mara, J. A.	1993	Commercial Specialty Cut Flower production
K. Polycarp J. Sprengel	1826	Caroli Linnaei... Systema vegetabilium/Curante Curtio Sprengel
E. Spach	1841	Histoire Naturelle des vegetaux
J. Small	Submitted	The Origin and Development of the Compositae
J. J. Skvarla, Turner, B. L., Patel, V. C., Tomb, A. S.	1977	Pollen morphology in the Compositae and in morphologically related families.
J. J. Skvarla, DeVore, M. L., Chissoe, W. F.	2005	Lophate sculpturing of Vernonieae (Compositae) pollen
D. Simberloff, Stiling P.	1996	Risks of Species Introduced for Biological Control
J. L. Da Silva, Soares, D. J., Barreto, R. W.	2005	Eye-spot of Rudbeckia laciniata caused by Corynespora cassiicola in Brazil
U. S. Forest Service	2010	Species: Achillea millefolium
P. Service	1984	Genotypic Interactions in an aphid-host plant relationship: Uroleucon rudbeckiae and Rudbeckia laciniata
A. N. Sennikov	2010	A revision of Cousinia sections Alpinae (syn. Carduncellus), Subappendiculatae and Tianschanicae (Asteraceae) in the Kirghizian Tian-Shan and the neighbouring territories
L. Scott, Molano-Flores B.	2007	Reproductive Ecology of Rudbeckia Fulgida Ait. Var. Sullivantii (C. L. Boynt and Beadle) Cronq. (Asteraceae) in Northeastern Illinois
W. G. Schmid	2002	An Encyclopedia of Shade perennials
P. A. Rydberg	1927	(Carduales) Carduaceae, Liabeae, Neurolaeneae, Senecioneae (pars)
H. Robinson	1978	Compositae - Liabeae
B. L. Robinson, Greenman J. M.	1899	Revision of the Genera Montanoa, Perymenium and Zaluzania
H. Robinson, Funk V. A.	1987	A phylogenetic analysis of Leiboldia, Lepidonia, and a new genus Stramentopappus (Vernonieae: Asteraceae).
H. Robinson, Brettell R. D.	1974	Studies in the Liabeae (Asteraceae), II: Preliminary survey of the genera
H. Robinson	1976	Three New Asteraceae from Guerrero, Mexico
H. Robinson	1983	A generic review of the tribe Liabeae (Asteraceae).
H. Robinson	1983	Studies in the Liabeae (Asteraceae) XVI. New taxa from Peru.
H. Robinson	1990	A redelimitation of Microliabum Cabrera (Asteraceae: Liabeae)
H. Robinson	1991	Two New Species of Stifftia with Notes on Relationships of the Genus (Asteraceae: Mutisieae)
F. B. Pyatt, Gilmore, G., Grattan, J. P., Hunt, C. O., McLaren, S.	2000	An imperial legacy? An exploration of the environmental impact of ancient metal mining and smelting in southern Jordan
A. E. Plovanich, Panero J. L.	2004	A Phylogeny of the ITS and ETS for Montanoa (Asteraceae: Heliantheae)
T. C. Pesacreta, Hasenstein K. H.	1999	The Internal Cuticle of Cirsium horridulum (Asteraceae) Leaves
R. E. Perdue, Jr.	1957	Synopsis of Rudbeckia Subgenus Rudbeckia
R. E. Perdue, Jr.	1962	Two New Varieties and a New Combination in Rudbeckia
P. B. Pelser, Nordenstam, B., Kadereit, J. W., Watson, L. E.	2007	An ITS phylogeny of tribe Senecioneae (Asteraceae) and a new delimitation of Senecio L.
J. Panero, Funk V. A.	2002	Toward a phylogenetic subfamilial classification for the Compositae (Asteraceae)

Authors