Rough Oxeye Pollen Color, Bloom Season and Bee Forage

Visual guideRough Oxeye pollen

Photo: Alvesgaspar · CC BY-SA 3.0

Plant Facts

SeasonSummer

USDA Zone3 - 9

Plant TypeWildflower

ForagePollen and nectar

Pollen ValueLow

Nectar ValueLow

Color FamilyOrange and amber

Scientific NameHeliopsis helianthoides

Common NamesRough oxeye, False sunflower, Oxeye sunflower

Native RegionsEastern and central North America

Range StatusNative to eastern and central North America.

Color ConfidenceModerate

Color MethodA species-level pollen-library record describes the pollen as dark yellow; the digital swatch is approximate.

Reviewed2026-10-11

Quick Answer

Rough Oxeye pollen is shown in this guide as an orange and amber tone. It is listed as wildflower, associated with summer bloom timing, USDA zone 3 - 9, and pollen and nectar forage value.

Pollen Color Notes

The visual color shown for Rough Oxeye is grouped broadly with orange and amber pollen tones. It is intended for comparison and identification support, not as a laboratory measurement.

Pollen color is highly variable. Lighting, pollen age, moisture, collection method, cultivar, and local growing conditions can all change how pollen appears. Use this as general visual guidance, not a scientific color standard or guaranteed field match.

Bloom, Zone, and Forage Context

Rough Oxeye is listed for summer. The record lists USDA zone 3 - 9; hardiness zones are planning context, not a precise flowering calendar. Approximate bloom months in the supplemental notes: June, July, August.

Its forage type is pollen and nectar, with pollen value marked as low and nectar value marked as low. The summer flower heads provide modest pollen and nectar to generalist bees and other insects.

Identification Notes

Rough oxeye is an upright perennial with opposite toothed leaves and yellow daisy-like flower heads whose fertile disk flowers mature from the outside inward.

Flower color note: Yellow. Flower color and pollen color may differ.

Related by Similar Color

Onion - Orange and amber Carolina Silverbell - Orange and amber Spanish Needles - Orange and amber Yellow Sweet Clover - Orange and amber Green-and-Gold - Orange and amber Cedar - Orange and amber

Related by Season

Adam's Needle - Summer American Basswood - Summer Basil - Summer Bee Balm - Summer Bindweed - Summer Bird's-Foot Trefoil - Summer

Related by Plant Type

Alfalfa - Wildflower Aster - Wildflower Balsam - Wildflower Bee Balm - Wildflower Bindweed - Wildflower Bird's-Foot Trefoil - Wildflower

Related by USDA Zone

Adam's Needle - Zone 4 - 10 Alder - Zone 2 - 7 Allium - Zone 3 - 9 Almond - Zone 4 - 8 Alsike Clover - Zone 3 - 8 American Basswood - Zone 3 - 8

Related by Bee Forage

Adam's Needle - Pollen and nectar Alfalfa - Pollen and nectar Allium - Pollen and nectar Almond - Pollen and nectar Alsike Clover - Pollen and nectar American Basswood - Pollen and nectar

Sources

USDA Plant Hardiness Zone Map
United States Department of Agriculture / reviewed 2026-07-12
USDA hardiness zone context USDA PLANTS Database
United States Department of Agriculture / reviewed 2026-07-12
scientific name, common name, distribution context, plant classification The Anther's Promise pollen library
The Anther's Promise / reviewed 2026-10-11
pollen color category, bloom period, pollen morphology, bee resource context Selecting Plants for Pollinators regional guides
Pollinator Partnership / reviewed 2026-10-11
North American regional plant selection, native range context, bloom timing, pollinator value Wikipedia and Wikimedia Commons
Wikimedia Foundation contributors / reviewed 2026-07-12
plant image, image credit link