Heuchera longiflora

Herbs acaulescent; caudex branched. Flowering stems often leafy, 30–95 cm, glabrous or short stipitate-glandular. Leaves: petiole glabrous or short stipitate-glandular; blade (often variegated adaxially), broadly ovate to cordate, shallowly 5-lobed, 3–12 cm, base cordate or nearly truncate, lobes rounded to widely ovate, terminal lobes often elongated, margins dentate, apex acute or obtuse, surfaces glabrous or short stipitate-glandular, at least on veins. Inflorescences diffuse. Flowers: hypanthium strongly bilaterally symmetric, free 2.2–6.2 mm, green, gibbous-tubular, abruptly inflated distal to adnation to ovary, 6.6–12.6 mm, short stipitate-glandular; sepals inflexed (closing mouth of flower), darker green-tipped, equal, 2–3.7 mm, apex rounded; petals inflexed (closing mouth of flower), white, pink, or purple, spatulate, unlobed, 1.8–5.5 mm, margins often fimbriate; stamens 2.4 mm included to 0.7 mm exserted; styles included 1.3–5.3 mm, 1.5–2.5 mm, to 0.1 mm diam. Capsules ovoid, 5–13 mm, beaks divergent, not papillose. Seeds dark brown, ellipsoid, 0.5–0.9 mm. 2n = 14.

Phenology: Flowering May–Jun.
Habitat: Rich, shaded woods and roadcuts over limestone substrates and outcroppings
Elevation: 100-500 m

Distribution

• Generated Map
• Legacy Map

Ala., Ky., N.C., Tenn., Va., W.Va.

Discussion

Heuchera longiflora is restricted to limestone outcroppings and is rare in all the states where it is found.

Selected References

None.

Lower Taxa

None.