Geneva Herbaria Catalogue

Specimen - n° SIB 377841/1

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Sample ID


SIB Identifier :	377841/1
Herbarium :	G

Nomenclature

Family name :
Validated determination :	Compositae
Stored under (G) :
Name :
Validated determination :	Bidens frondosa L.
Determinator :	Wieringa, J. J. - 2011
Stored under (G):

Collector and date of collection

Collector :	Wieringa, J. J.
N° Collector :	6930
Collection date :	27.8.2011

Geography

Country :	Netherlands
Locality :	Gelderland
Description :	Renkum, W edge of Renkums beekdal towards Wageningse Berg, margin of old Vredestein factory area.
Altitude :	16 m.
Longitude/Latitude :	5 deg. 43 min. 14 sec. E / 51 deg. 58 min. 43 sec. N
Accuracy :	Approx. in a 1'000 m. radius

Miscellaneous

Habitat :	Marshy area on fairly coarse sand.
Substratum :
Abundance :
Life-form :
Description :	"Herbs, 20-150 cm high. Leaves herbaceous, dull, upper side dark to medium green, midrib often purple-red, lower side palish green. Stem purple. Outer involucral bracts leaf-like, darkish green with purple margins, inner involucral light green with many parallel black lines. Floral bracts translucent greenish white, apex yellowish, with 3 pale green veins, these blackish alined to apex. Ovary pale green. Corolla pale green in basal half, upper half yellow. Anther tube brownish. Stigmas yellow."