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FNA | Family List | FNA Vol. 8 | Saxifragaceae | Heuchera

14. Heuchera bracteata (Torrey) Seringe in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 4: 52. 1830.

Rocky Mountain alumroot Rocky Mountain alumroot

Tiarella bracteata Torrey, Ann. Lyceum Nat. Hist. New York 2: 204. 1827

Herbs usually subcaulescent; caudex branched or unbranched. Flowering stems leafy, 6-28(-38) cm, short stipitate-glandular. Leaves: petiole short to medium stipitate-glandular; blade reniform or broadly ovate, shallowly 5-7-lobed, 1.5-4 cm, base subcordate or truncate, lobes rounded, margins sharply dentate, apex often mucronate, surfaces short stipitate-glandular or sparsely long stipitate-glandular abaxially, short stipitate-glandular adaxially. Inflorescences dense, (secund). Flowers: hypanthium weakly bilaterally symmetric, free 0.5-1.5 mm, greenish yellow, narrowly campanulate, 3-5 mm, short stipitate-glandular; sepals erect, green-tipped, equal, 1-1.5 mm, apex rounded; petals erect, green, oblanceolate, unlobed, 2 mm, margins entire; stamens exserted 0.5-1 mm; styles exserted 1 mm, 1.5-2 mm, 0.1+ mm diam. Capsules ovoid, 4-6 mm, beaks divergent, not papillose. Seeds brownish black, nearly straight along 1 side, convex on other side, 0.7-0.8 mm.

Flowering May-Jul. Shaded rocky ledges and outcrops; 1700-3500 m; Colo., Wyo.

Heuchera bracteata occurs in the Rocky Mountains and foothills of northern Colorado and southern Wyoming.


 

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