General: Honeysuckle family (Caprifoliaceae). Twinberry honeysuckle (Lonicera involucrata) is an erect clustered shrub one to three meters high with freely exfoliating bark (Peck 1961). The leaves are opposite, short-stemmed, somewhat elliptical to broadly lanced shaped, pointed often hairy beneath (Pojar & MacKinnon 1994). The flowers are yellow, tinged with red, and cupped by a large pair of green to purplish bracts. The fruits are roundish or oval, blackish berries, paired on long axillary stalks and distinct; ripening August or September (Grimm 1993).
Distribution: Lonicera involcrata is widely distributed across North America from Quebec westward to Alaska and British Columbia and southward into California, Colorado, Utah, and Arizona (McMinn 1939). For current distribution, please consult the Plant profile page for this species on the PLANTS Web site.
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