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Bombus terrestris

Bumblebees, including Bombus terrestris, are the effective pollinators; a landing bee's weight trips the explosive keel mechanism, which springs apart and dusts the visitor with pollen. Cytisus scoparius is an excellent early-season pollen source when the flowers open in spring.

Large bumblebees are the pollinators the hooded Acanthus flower is built for, forcing between the upper sepal and lower lip to reach nectar; the mechanism is documented for the genus and its close relative A. mollis.

Long-tongued bumblebees including Bombus terrestris are the primary pollinators of Gentiana acaulis in its alpine native range; the deep trumpet corolla excludes short-tongued insects and is sized for large bumblebee foragers.

The buff-tailed bumblebee is the archetypal large bee across almost the whole European portion of this iris's native range, and the iris flower is a gullet flower dimensioned for exactly this size class - a bee that can force its way under an arching style arm and out again past the anther. Marked plausible rather than documented because the evidence combining here is floral architecture and geographic coincidence, not a cited species-on-species visitation record; none of this record's permitted sources publishes a visitor list for Iris sibirica.

The buff-tailed bumblebee is common across Italy and the Balkans and is the right size and weight to force into a bearded-iris fall tunnel and contact both stigma and anther, which smaller bees cannot reliably do. Marked plausible rather than documented deliberately: Missouri Botanical Garden lists no "attracts" line at all for this species, so the basis here is the flower's pollination mechanism plus range overlap, not a species-on-species record.

Buff-tailed bumblebee (Bombus terrestris) is a documented visitor to Aubrieta flowers in UK and European gardens; queens emerging in early spring rely on early-blooming species like aubrieta for nectar.

Buff-tailed bumblebee is among the large-bodied bees documented to pollinate Acanthus mollis by forcing between the upper sepal and lower lip of the floret to reach nectar (Wikipedia, Acanthus mollis).

Bumblebees, including Bombus terrestris, are the effective pollinators; a landing bee's weight trips the explosive keel mechanism, which springs apart and dusts the visitor with pollen. Cytisus scoparius is an excellent early-season pollen source when the flowers open in spring.

The buff-tailed bumblebee is the archetypal large bee across almost the whole European portion of this iris's native range, and the iris flower is a gullet flower dimensioned for exactly this size class - a bee that can force its way under an arching style arm and out again past the anther. Marked plausible rather than documented because the evidence combining here is floral architecture and geographic coincidence, not a cited species-on-species visitation record; none of this record's permitted sources publishes a visitor list for Iris sibirica.

Large bumblebees are the pollinators the hooded Acanthus flower is built for, forcing between the upper sepal and lower lip to reach nectar; the mechanism is documented for the genus and its close relative A. mollis.

The buff-tailed bumblebee is common across Italy and the Balkans and is the right size and weight to force into a bearded-iris fall tunnel and contact both stigma and anther, which smaller bees cannot reliably do. Marked plausible rather than documented deliberately: Missouri Botanical Garden lists no "attracts" line at all for this species, so the basis here is the flower's pollination mechanism plus range overlap, not a species-on-species record.

Long-tongued bumblebees including Bombus terrestris are the primary pollinators of Gentiana acaulis in its alpine native range; the deep trumpet corolla excludes short-tongued insects and is sized for large bumblebee foragers.

Early-spring queens of the buff-tailed bumblebee and related Bombus visit maple flowers for nectar and pollen; documentation specific to Amur maple is sparse, but the fragrant, accessible, early flowers fit their foraging.

Buff-tailed bumblebee queens emerging from hibernation in early spring visit the early-blooming fragrant flowers for nectar and pollen.

Buff-tailed bumblebee (Bombus terrestris) is a documented visitor to Aubrieta flowers in UK and European gardens; queens emerging in early spring rely on early-blooming species like aubrieta for nectar.

Buff-tailed bumblebee (Bombus terrestris) is a late-season forager throughout the European range of C. autumnale and plausibly visits these autumn blooms for nectar.

The wide, open, nectar-bearing summer flowers of balloon flower are accessible to bumblebees; Bombus terrestris is the dominant generalist bumblebee across the species' Eurasian native range and in European garden settings where the plant is widely grown.

Buff-tailed bumblebees are plausible visitors to the pendant spurred flowers in early spring when few other nectar sources are available in the garden.

Buff-tailed bumblebees forage open Asteraceae daisy heads freely; a plausible visitor in European and Mediterranean-climate gardens where this species is cultivated.

Buff-tailed bumblebee and related Bombus species are frequently observed foraging nectar at the tubular flowers through August and September.

Buff-tailed bumblebee (Bombus terrestris) queens emerge early in mild UK winters and forage on winter-flowering shrubs including Viburnum × bodnantense; a well-established UK garden observation, though formal study data is limited.

Bumblebees (including Bombus terrestris, naturalised in New Zealand) forage the dense panicles alongside honey bees during the spring flowering period.

Buff-tailed bumblebee (Bombus terrestris) is a documented visitor to Campanula flowers across Europe, accessing nectar from the wide open bells.

Buff-tailed bumblebee is documented visiting Dianthus flowers in European populations; the strong nectar reward suits short-to-medium-tongued bumble bees.

Buff-tailed bumblebees, common throughout the species' native range and introduced range, are plausible visitors to the open-cup flowers of cherry laurel racemes alongside honeybees.

Bumblebees are commonly observed foraging on garden Astilbe during the summer bloom window; Bombus terrestris is the relevant generalist in European plantings.

Buff-tailed bumblebee queens emerging from hibernation in late winter find Loropetalum's early bloom a useful nectar source in mild-winter UK and Mediterranean gardens where it flowers January-April.

Bumblebees, with their long tongues, are well suited to the hooded salvia flowers and are frequent visitors alongside honeybees.

Buff-tailed bumblebees and other bumblebee species are plausible and frequently observed visitors to the open fertile florets of the lacecap inflorescences during the mid-summer blooming window.

Bumblebees are the chief pollinators of clustered bellflower; the buff-tailed bumblebee climbs into the open bells of the dense clusters for nectar and works the deep violet-blue heads heavily through early to midsummer.

Buff-tailed bumblebees and other Bombus species are prominent visitors to hawthorn flowers, which are accessible to short-tongued bees.

Bumblebees are typical visitors to laburnum’s Fabaceae flowers, which are structured for bee pollination.

Buff-tailed bumblebee (Bombus terrestris) is among the primary pollinators of Pulmonaria officinalis in its native European range, accessing nectar from the narrow tubular corolla with its long tongue. Bees and bumblebees are listed as the main pollinators per Wikipedia.

Early-season flowers provide nectar to buff-tailed and other bumble bees in spring before many other plants are in bloom; documented in European literature as a spring nectar source.

Buff-tailed bumblebee, common across the Mediterranean native range and in UK/European gardens, regularly forages Santolina flowers alongside honeybees.

Buff-tailed bumblebees are commonly observed foraging on Cotoneaster horizontalis flowers, which are accessible to short-tongued bees due to their shallow, open structure.

Buff-tailed bumblebee (and other Bombus species) are among the primary pollinators of blackthorn's early-spring blossom, which opens when few other nectar sources are available - making it a critical early resource for emerging queens.

Buff-tailed bumblebees forage on Akebia quinata flowers in the European and UK garden context where both species overlap.

Buff-tailed bumblebees (and other Bombus species) forage the fertile central florets of doublefile cultivars; sterile snowball types provide no pollen or nectar value.

Early-spring flowers are one of the first pollen sources available in temperate European and North American gardens; short-tongued bumblebees, particularly Bombus terrestris, forage the open, accessible flowers when few alternatives are available.

Buff-tailed bumblebee forages on oak catkin pollen in early spring when the tree is in bloom - one of the earliest available pollen sources in the European season.

Buff-tailed bumblebees forage yew pollen early in the season; as with honey bees, wind-pollination predominates but bumblebee visits are documented on male trees in early spring.

Early-emerging buff-tailed bumblebee queens forage Corylus catkins for pollen in late February and March; one of the earliest pollen sources for Bombus terrestris in European gardens.

Bumblebees (including Bombus terrestris in European gardens where the plant is widely cultivated) work the exposed spadix for pollen; plausible given the open, accessible inflorescence, though no published study documents this specifically for Z. elliottiana.

Buff-tailed bumblebee and similar Bombus species are plausible foragers on the pollen-rich disc florets; consistent with observations in European gardens where the plant is widely grown.

In European garden settings the buff-tailed bumblebee may opportunistically visit the small purplish-brown spring flowers for pollen; flies remain the primary pollinators, so this is a plausible generalist interaction only.

Buff-tailed bumblebee visits the open flowers for pollen in the European/Mediterranean part of the plant's cultivated range, including UK gardens.

Buff-tailed bumblebee visits the early white flowers for pollen; one of the most important early-season pollinators in European orchards.

Early-season pollen availability when male cones open in spring may attract bumble bees foraging for protein, though pollination is wind-driven.

Bumblebees forage the open, accessible flowers for pollen; the sequential summer flowering is particularly valuable during the mid-summer gap in many temperate gardens.

Bumblebees forage the early-spring flowers for pollen; queen bumblebees emerging in early spring benefit from magnolia's early bloom window.

Bumblebees forage the central flower cluster for pollen; the showy bracts serve only as pollinator guides, not reward structures.

Bumblebees forage on the large open flower heads; the species flowers when Bombus terrestris colonies are at peak size and foraging pressure is high.

Buff-tailed bumblebees, a Holarctic species present across the cultivated range, are plausible visitors to the large open clematis blooms, though not documented on C. montana specifically.

Buff-tailed bumblebees are plausible visitors to single-flowered forms in the Mediterranean and European garden range, consistent with general Ranunculus foraging behaviour observed across the genus.

Buff-tailed bumblebee queens (a Eurasian species, matching this tree's native range) emerge early in mild winters and may forage the abundant pollen-bearing stamens before other flowers open.

Buff-tailed bumblebee queens emerging in early spring forage the large, open flowers for pollen as an early-season carbohydrate source in European gardens where this tree is planted.

In UK gardens (where this shrub is widely grown and wall-trained), early-emerging bumblebee queens in late winter may visit catkins for pollen, a scarce resource during Garrya's January–March bloom window.

Buff-tailed bumblebee queens visit the open flowers heavily in early spring; the accessible, unspecialised flower structure suits generalist bumblebees.

Buff-tailed bumblebee queens emerging in late winter are recorded foraging on early Magnolia bloom for pollen to provision early nests.

Plotwright. (n.d.). Buff-tailed bumblebee (Bombus terrestris). Retrieved 2026, August 20, from https://plotwright.com/wildlife/bombus-terrestris