Literature

Authors	Year	Title
I. E. Palmer, Ranney, T. G., Lynch, N. P., Bir, R. E.	2009	Crossability, Cytogenetics, and Reproductive Pathways in Rudbeckia Subgenus Rudbeckia
J. L. Panero, Funk V. A.	2008	The value of sampling anomalous taxa in phylogenetic studies: major clades of the Asteraceae revealed.
J. Panero, Funk V. A.	2002	Toward a phylogenetic subfamilial classification for the Compositae (Asteraceae)
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.
R. E. Perdue, Jr.	1962	Two New Varieties and a New Combination in Rudbeckia
R. E. Perdue, Jr.	1957	Synopsis of Rudbeckia Subgenus Rudbeckia
T. C. Pesacreta, Hasenstein K. H.	1999	The Internal Cuticle of Cirsium horridulum (Asteraceae) Leaves
A. E. Plovanich, Panero J. L.	2004	A Phylogeny of the ITS and ETS for Montanoa (Asteraceae: Heliantheae)
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
H. Robinson	1991	Two New Species of Stifftia with Notes on Relationships of the Genus (Asteraceae: Mutisieae)
H. Robinson	1990	A redelimitation of Microliabum Cabrera (Asteraceae: Liabeae)
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	1976	Three New Asteraceae from Guerrero, Mexico
H. Robinson, Brettell R. D.	1974	Studies in the Liabeae (Asteraceae), II: Preliminary survey of the genera
H. Robinson, Funk V. A.	1987	A phylogenetic analysis of Leiboldia, Lepidonia, and a new genus Stramentopappus (Vernonieae: Asteraceae).
B. L. Robinson, Greenman J. M.	1899	Revision of the Genera Montanoa, Perymenium and Zaluzania
H. Robinson	1978	Compositae - Liabeae
P. A. Rydberg	1927	(Carduales) Carduaceae, Liabeae, Neurolaeneae, Senecioneae (pars)
W. G. Schmid	2002	An Encyclopedia of Shade perennials
L. Scott, Molano-Flores B.	2007	Reproductive Ecology of Rudbeckia Fulgida Ait. Var. Sullivantii (C. L. Boynt and Beadle) Cronq. (Asteraceae) in Northeastern Illinois
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
P. Service	1984	Genotypic Interactions in an aphid-host plant relationship: Uroleucon rudbeckiae and Rudbeckia laciniata
U. S. Forest Service	2010	Species: Achillea millefolium
J. L. Da Silva, Soares, D. J., Barreto, R. W.	2005	Eye-spot of Rudbeckia laciniata caused by Corynespora cassiicola in Brazil
D. Simberloff, Stiling P.	1996	Risks of Species Introduced for Biological Control
J. J. Skvarla, DeVore, M. L., Chissoe, W. F.	2005	Lophate sculpturing of Vernonieae (Compositae) pollen
J. J. Skvarla, Turner, B. L., Patel, V. C., Tomb, A. S.	1977	Pollen morphology in the Compositae and in morphologically related families.
J. Small	Submitted	The Origin and Development of the Compositae
E. Spach	1841	Histoire Naturelle des vegetaux
K. Polycarp J. Sprengel	1826	Caroli Linnaei... Systema vegetabilium/Curante Curtio Sprengel
A. B. Stevens, Gast, K. L. B., O’Mara, J. A.	1993	Commercial Specialty Cut Flower production
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)
J. L. Strother	2006	Stokesia
J. L. Strother	2006	Flora of North America
I. E. Jordon-Thaden, Louda S. M.	2003	Chemistry of Cirsium and Carduus: a role in ecological risk assessment for biological control of weeds?
D. K. Trock	2006	Achillea
B. L. Turner, King R. M.	1964	Chromosome Numbers in the Compositae. VIII. Mexican and Central American Species
R. J. Tyrl	1969	Cytogeography of Achillea Millefolium in Western Oregon
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
L. E. Urbatsch, Cox P. B.	2006	Rudbeckia
N. R. C. S. USDA	2010	The PLANTS Database
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.
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...
T. Walter	1788	Flora caroliniana: secunda systema vegetabilium perillustris Linnaei digesta...
D. A. Willard, Bernhardt, C. E., Weimer, L., Cooper, S., Gamez, D., Jensen, J.	2004	Atlas of Pollen and Spores of the Florida Everglades
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)
S. Lev-Yadun	2000	Why are underground flowering and fruiting more common in Israel than anywhere else in the world?
M. Fei Yam, Basir, R., Asmawi, M. Zaini	2008	Antioxidant and Hepatoprotective Activities ofElephantopus tomentosusEthanol Extract
E. Zamski, Ucko, O., Koller, D.	1983	The mechanism of root contraction in Gymnarrhena micrantha, a desert plant.

Authors