Gleason & Cronquist
Vascular plants of NE US and adjacent Canada
Sepals connate at least half their length to form a lobed tube; lvs deciduous, 5-11-foliolate. 13, N. Hemisphere.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Species within checklist:
California - Redwood Grove Preserve spring 2019