Title: Plants 

Abstract: Data has been extracted from the USDA plants database. It 
contains all plants (species and genera) in the database and the states 
of USA and Canada where they occur.

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Data Set Characteristics: Multivariate
Attribute Characteristics: Categorical
Associated Tasks: Clustering
Number of Instances: 22632
Number of Attributes: 70
Missing Values? Yes
Area: Life
Date Donated: 2008-12-31

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Source:

Original source:
USDA plants database: http://plants.usda.gov/index.html

Extracted and encoded by W. Hämäläinen, Department of Computer Science, 
University of Helsinki, Finland. whamalai '@' cs.helsinki.fi

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Data Set Information:

The data is in the transactional form. It contains the Latin names 
(species or genus) and state abbreviations. 

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Attribute Information:

Each row contains a Latin name (species or genus) and a list of state 
abbreviations. 

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Relevant Papers:

Hämäläinen, W. and Nykänen, M.: Efficient discovery of statistically 
significant association rules. Proceedings of the 8th IEEE International 
Conference on Data Mining (ICDM 2008), pp. 203-212. IEEE Computer 
Society 2008. 

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Citation Request:

Even if the data is processed, it is good to give a reference to the 
original source:

USDA, NRCS. 2008. The PLANTS Database (http://plants.usda.gov/, 31 
December 2008). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.