Helianthus annuus L.

Voucher Specimen For Chromosome Studies
n = 17
Michael D. Windham, Utah Museum of Natural History, Salt Lake City, UT
PLANTS OF ARIZONA, U.S.A.
Helianthus annuus L. subsp. lenticularis (Dougl.) Cockerell
YAVAPAI CO.: NE of McGuireville near Interstate 17 on
Stoneman Lake Rd. ca. 1.74 km WSW of Rattlesnake Tank.
T16N, R7E, Sec. 19 Lat.: 34'45'48"N Long.: 111#39'20'W
(WGS84 Datum). Elev. 5325 ft.
In rocky (basalt) soil on SW-facing roadcut with Quercus. Yucca.
Juniperus & Pinus. Taprooted annuals to 1.2 meters tall; herbage
hispid; leaves to 12 cm wide; involucres to 4 cm wide; phyllaries
to 10 mm wide, the apices abruptly acuminate; paleae incon-
spicuous, not strongly bearded; corollas of ray florets yellow.
M.D. Windham (96-272)	13 September 1996
Asteraceae
Garrett Herbarium, Utah Museum of Natural History, Salt Lake City, UT
02883861