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Erica tetralix

Erica tetralix L.  
Family: Ericaceae
Cross-Leaf Heath
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  • FNA
  • Gleason & Cronquist
  • Resources
Gordon C. Tucker in Flora of North America (vol. 8)
Plants erect or ascending, 10-25 cm; twigs of current season green, with both appressed and spreading, stiff hairs, older twigs brown, glabrescent. Leaves in whorls of 4; petiole 0.1-0.3 mm; blade linear-lanceolate, flat, 3-5.5 × 0.5-0.7 mm, margins revolute, not prickled, abaxial surface stiffly short-hairy, adaxial sparsely, stiffly short-hairy (hairs ca. 0.1-0.2 mm), mixed with longer, glandular hairs (hairs 0.5-0.6 mm). Inflorescences terminal umbels, capitate, 0.8-1.6 cm. Pedicels 2-3 mm, glabrous. Flowers: calyx lobes narrowly deltate, 2.5 × 0.6-0.8 mm, margins entire, with short, stiff hairs, apex obtuse, with short, stiff hairs; corolla light pink, campanulate, 4-5 mm, lobes deltate, 0.5 mm, apex acute; stamens 10; filaments ca. 3 mm; anthers awned, ca. 0.7 mm, awns 2, basal, subulate, ca. 0.7 mm; ovary hairy; style 3-4 mm; stigma included, not slender, capitate. Capsules 1.5-2 mm. Seeds ellipsoid-ovoid, 0.3 × 0.3 mm, reticulate. 2n = 24.

Flowering late spring-summer. Sandy, acidic, upland sites in old pastures and roadsides; 0-1100 m; introduced; N.S.; Conn., Maine, Mass., N.H., N.J., N.C., Ohio, W.Va.; n, w Europe.
Vascular plants of NE US and adjacent Canada
Shrub to 4 dm; lvs narrowly oblong, at least the younger ones canescent, glandular-ciliate, as also the sep and bracts; cor ovoid, 7-8 mm; anthers with long basal appendages; 2n=24. Locally from Me. to N.J. and in W.Va. July-Sept.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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