Your search found 14 image(s) of flowers of Buckeye species.
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Painted Buckeye
Aesculus sylvatica
Look for it in the Piedmont in mesic, nutrient-rich forests, on bottomlands, lower slopes, and in ravines, in the Coastal Plain primarily on floodplains of brownwater (alluvium-carrying) rivers (most notably the Roanoke River in NC), in the Mountains only at low elevations
Stamens are shorter than lateral petals, & the calyx & pedicel lack glands, per Native Trees of the Southeast, An Identification Guide.
Known to hybridize with A. pavia, resulting in plants with reddish flowers, per Native Trees of the Southeast, An Identification Guide.
Recognized by unequal yellow-green to cream flower petals, per Trees of the Southeastern United States.
Red Buckeye
Aesculus pavia var. pavia
Look for it in swamp forests, usually stagnant, usually blackwater (not receiving significant alluvium), and esp over marl (coquina limestone)
Glandular-hairy tubular calyx. Usually 7 unequal, slightly exserted stamens, per Native Trees of the Southeast, An Identification Guide.
Look for it in moist forests, up to nearly 2000m, esp prominent in seepy cove forests, in the Piedmont only in "montane" habitats
Corolla tubular with 4 very unequal petals; stamens shorter than petals, per Native Trees of the Southeast, An Identification Guide.
Calyx tomentose, glandular hairy, per Native Trees of the Southeast, An Identification Guide.
Upper petals often streaked with red, per Native Trees of the Southeast, An Identification Guide.
Ohio Buckeye, Fetid Buckeye
Aesculus glabra var. glabra
Look for it in mesic forests over limestone
Petals only slightly unequal in size, and stamens about 2x as long as petals, per Weakley's Flora.
Broad pyramidal clusters of pale yellow to greenish-yellow flowers, per Trees of the Southeastern United States.
Bottlebrush Buckeye
Aesculus parviflora
Look for it in mesic forests on bluffs and in ravines (the SC occurrence is on Fall Line river bluffs, with shaley, subcalcareous soils)
Recognized by columnar, white flower clusters, per Trees of the Southeastern United States.
Stamens exserted, 3-4x the length of the petals, per Native Trees of the Southeast, An Identification Guide.