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Specimen number OBI82090
Determination Helminthotheca echioides
More information: Jepson Online Interchange
Collector, number, date Tom Schweich, 1034, 2013-3-13
Verbatim date 3 13 2013
County Alameda
Locality Jean Sweeney Open Space Preserve, Alameda County, California. Just inside the preserve, just east of the north end of Nason Street.
Elevation 4 m
HabitatJean Sweeney Open Space Preserve. Growing in the gravel of a former railroad roadbed.
Coordinates 37.77900 -122.27140 BerkeleyMapper [or without layers, here]
DatumNot recorded
Coordinate sourceNot recorded
Voucher information
population biologyHerbaceous annual or biennial to 35 cm, rigid hairs with hooked branches at tip; sap slightly milky (seen mostly at base of phyllaries); Leaves basal and cauline, alternate, 11 cm x 18 mm wide, oblanceolate, slightly glandular, margins entire, not spine-tipped; Involucre 14 mm; Phyllaries in 4-5 series, the outer series are wide and stand away from the rest, the inner series are narrow, appendages at tip; Receptacle epaulette; Flowers all rays; Pappus of well developed bristles, equal, broader at base, plumose; Corolla yellow, readily withering; Fruit 3 mm x 0.5 mm wide, brown, annular ridges or decoration giving the appearance of a small insect pupa.
other label numbersad2ac32d-664a-4e35-9c7a-b10c44e932c3
verbatim coordinates37.779, -122.2714
Annotations and/or
curatorial actions
current determination (uncorrected): Helminthotheca echioides
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