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FNA | Family List | FNA Vol. 8 | Ericaceae | Gaylussacia

9. Gaylussacia tomentosa (A. Gray) Pursh ex Small, Bull. Torrey Bot. Club. 24: 443. 1897.

Hairy dangleberry

Gaylussacia frondosa (Linnaeus) Torrey & A. Gray var. tomentosa A. Gray in A. Gray et al., Syn. Fl. N. Amer. 2: 19. 1878; Decachaena tomentosa (A. Gray) Small

Plants 7.5-20 dm, forming small to extensive colonies (by rhizomes); branches spreading; twigs of current season pale green, densely hairy, sessile-glandular. Leaves: petiole 2-3 mm; blade greenish white, glaucescent abaxially, dull green to yellowish green adaxially, ovate to oblong, 2.5-6 × 2-3 cm, subcoriaceous, base cuneate, margins entire, apex rounded to obtuse, surfaces densely short-hairy (longer hairs to ca. 0.2 mm), sessile-glandular abaxially. Inflorescences drooping, 2-4-flowered, sometimes flowers solitary, bracteate, 1-2.5 cm, glabrous or pilose, sessile-glandular; bracts early-deciduous, leaflike, 5-6 mm, shorter than pedicels, densely hairy. Pedicels 8-15(-20) mm, glabrous, sessile-glandular; bracteoles 1-2, 1-2.5 mm. Flowers: sepals 5, 1-1.2 mm, glabrous or sparsely hairy, sessile-glandular; petals 5, corolla greenish white, campanulate-conic, 3-5 mm, lobes deltate, ca. 1 mm; filaments 0.5-1 mm, ciliate; anthers included (tips barely exserted), 2.5 mm, thecae not divergent distally; ovary glabrous. Drupes juicy, sweet, dark blue, sometimes black, rarely white, glaucous, 5-8 mm diam., glabrous. Seeds 1.5 mm.

Flowering late spring. Moist to wet pine flatwoods and savannas, margins of cypress-gum depressions, margins of blackwater floodplains, streamhead ecotones, sometimes in dry soils; 0-100 m; Ala., Fla., Ga., S.C.

Gaylussacia tomentosa is a coastal plain endemic that replaces G. frondosa from South Carolina south-ward. The leaves and twigs are covered with dense, tawny hairs, unlike the relatively sparse, white hairs of G. frondosa.


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