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Digital Herbaria

Helianthus petiolaris

Helianthus petiolaris Nutt.

Prairie Sunflower, Plains Sunflower

Asteraceae (Aster Family)

USDA Native Status: L48 (N), CAN (N)

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Specimen & Label Data

Helianthus petiolaris

Prairie Sunflower


Location: 14511 Star Cross Trail, Helotes.
Latitude: 0.000000

Habitat: Bottom of hill at edge of Evergreen Sumac thicket w/E facing exposure. Soil stoney and rocky w/very little humus. Very dry and shallow soil. Location extremely hot in summer.

Description: Annual; 1.3 m high; multiple stem from coarse root stock; multiple flowering branches arising in axils of leaves. Leaves alternate, petiolate, lanceolate to ovate, 10 x 4 cm. Flower yellow, 4 cm in dia, 23 in bloom when collected.

County: Bexar
Collector: Mike Fox
Collection Date: Oct 25, 1994
Specimen number: 127

Herbarium Owner: NPSOT
Herbarium ID: 0929A
Accession Date: Oct 25, 1994
Accession Number: 71

Annotations: (In flower & fruit)

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