Jepson Flora Project: Jepson Interchange    

 
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BUDDLEJACEAE

BUDDLEJA FAMILY

Elizabeth McClintock

Shrub, tree, rarely herb; hairs generally stellate, branched, scale-like or glandular
Leaves simple, generally opposite, entire, toothed or lobed; stipules at least partially on stem, often ridge-like
Inflorescence: cyme but appearing to be a panicle, head, raceme, or spike, terminal or axillary, generally dense
Flower bisexual, sometimes functionally unisexual, ± radial; calyx lobes 4–5; corolla lobes 4–5; stamens 4–5, attached to corolla tube; ovary superior or half inferior, chambers 2 or 4, style 1, stigma elongate or ± spheric
Fruit: capsule, rarely berry
Seeds small, often winged
Genera in family: ± 10 genera, 150 species: tropical, subtropical; some cultivated for ornamental
Reference: [Rogers 1986 J Arnold Arb 67:143–185]
Sometimes included in Loganiaceae.

BUDDLEJA

BUTTERFLY BUSH

Shrub, tree, deciduous or evergreen
Leaves rarely alternate or ± whorled, lanceolate, oblong, or linear, short-petioled or sessile
Flower generally fragrant; calyx ± bell-shaped, lobes generally 4, ± = or < tube; corolla bell-shaped, funnel-shaped, or salverform, lobes generally 4, < to << tube, abruptly spreading; stamens generally 4, anthers ± sessile
Fruit 2-parted; calyx persistent
Seeds many, often winged
Species in genus: ± 100 species: Am, Africa, Asia
Etymology: (Rev. Adam Buddle, England, 1660–1715)
Reference: [Norman 1967 Gentes Herb 10:47–114]
Often spelled Buddleia , perhaps incorrectly.

Introduced

B. davidii Franchet

BUTTERFLY BUSH, SUMMER LILAC

Shrub < 5 m, deciduous or semi-evergreen
Leaf 5–30 cm, lanceolate, serrate to ± entire; upper surface dark green, hairs sparse, generally branched; lower surface white, hairs dense, generally branched
Inflorescence panicle-like, 15–25 cm, slender, cylindric
Flower: calyx ± 3 mm; corolla salverform, lilac to purple with central orange spot, tube ± 10 mm, lobes 2–3 mm; stamens included
Fruit 5–6 mm
Seeds winged at both ends
Ecology: Disturbed, generally urban, often ± damp
Elevation: < 200 m.
Bioregional distribution: North Coast, Central Coast, San Francisco Bay Area
Distribution outside California: native to China
Commonly cultivated in CA.

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