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Cirsium hydrophilum var. vaseyi
Cirsium hydrophilum (Greene) Jeps. var. vaseyi (A. Gray) J.T. Howell
Vasey's Thistle, Mount Tamalpais Thistle
Asteraceae (Aster Family)
Synonym(s): Cirsium montigenum, Cirsium vaseyi, Cnicus breweri var. vaseyi
USDA Symbol: CIHYV
USDA Native Status: L48 (N)
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Plant Characteristics
Duration: Annual , BiennialHabit: Herb
Size Notes: Up to about 7 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom Information
Bloom Color: Pink , PurpleBloom Time: May , Jun , Jul
Bloom Notes: No ray florets present, only disc florets.
Distribution
USA: CAWeb Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Additional resources
USDA: Find Cirsium hydrophilum var. vaseyi in USDA PlantsFNA: Find Cirsium hydrophilum var. vaseyi in the Flora of North America (if available)
Google: Search Google for Cirsium hydrophilum var. vaseyi
Metadata
Record Modified: 2018-12-11Research By: CBR