Also known as Serpentine sunflower, this annual forb achieves a height of 60 to 150 centimeters. The erect stems are hispid to hirsute. Leaves are chiefly cauline and typically alternate. Leaf petioles are one to four centimeters in length.
Regularity: Regularly occurring
Catalog Number: US 323498
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): H. N. Bolander
Year Collected: 1864
Locality: Clear Lake, The Geysers., Lake, California, United States, North America
- Type collection: Gray, A. 1865. Proc. Amer. Acad. Arts. 6: 544.
National NatureServe Conservation Status
Rounded National Status Rank: NNR - Unranked
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