Harvard University Herbaria & Libraries

Index of Botanical Specimens

Classification	Asteraceae: Helianthus
Harvard University Herbaria Barcode(s)	00872861
Collector	H. D. Thoreau
Country	United States of America
State	Massachusetts
Geography	North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Concord
Locality	Moore's swamp
Date Collected	1856-08-12
GUID	http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/725cc591-4887-4fd6-b6e3-2fe874c3089d
Harvard University Herbaria Barcode	00872861
Herbarium	GH
Family	Asteraceae
Determination	Helianthus strumosus Linnaeus
Determination Remarks	[is label name]
Family	Asteraceae
Determination	Helianthus decapetalus Linnaeus
Determined by	Angelo, Raymond Louis
Date Determined	2018-10-09
Determination Remarks	[is Current name]
Subcollection	Thoreau Herbarium
Preparation Type	Sheet
Preparation Method	Pressed

Remarks

[“Aug. 12. . . Am surprised to see still a third species or variety of helianthus (which may have opened near August 1st, say only a week). Only the first flowers out. At edge of the last clearing south of spring. I cannot identify it. It has very short but not margined petioles; leaves narrower than yesterday’s, and rough beneath as well as above. The outer scales of involucre a little the longest; but I think this of little importance, for the invoucre of the H. divaricatus is very variable, hardly two alike; rays about ten. In som respects it is most like H. strumosus, but not downy beneath.2 2 It has decidedly thick leaves, unlike that of Aug. 29, and flowers two and a half or more inches in diameter.” Journal 8: 462-463. 1856]