Heuchera elegans |
Heuchera hallii |
|
---|---|---|
urn-flower alum-root |
Front Range alum-root |
|
Habit | Herbs subcaulescent; caudex branched. | Herbs acaulescent; caudex branched or unbranched. |
Flowering stems | 10–40 cm, sparsely medium stipitate-glandular. |
10–30 cm, glabrous or short stipitate-glandular. |
Leaves | petiole long stipitate-glandular; blade reniform or orbiculate, shallowly 5-lobed, 1.5–3.5 cm, base cordate or truncate, lobes rounded, margins dentate, apex obtuse, surfaces short or long stipitate-glandular. |
petiole glabrous or short stipitate-glandular; blade rounded-reniform, deeply 5–7-lobed, 1–3.8 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces glabrous or short stipitate-glandular. |
Inflorescences | dense, (sometimes secund). |
|
Flowers | hypanthium strongly bilaterally symmetric, free 3–3.5 mm on adaxial side, pink to purplish, narrowly cylindric or cylindric-urceolate, 4–7 mm, short stipitate-glandular proximally, densely long stipitate-glandular distally; sepals spreading, green-tipped, unequal, 2 mm on adaxial side of hypanthium, apex obtuse or rounded; petals spreading, white, broadly oblanceolate, (clawed), unlobed, 3–4 mm (longer than sepals), margins entire; stamens included 0.5 mm to exserted 0.5 mm; styles included to 2 mm, 1.5–2 mm, 0.1+ mm diam. |
hypanthium weakly bilaterally symmetric, free 0.8 mm, greenish or pinkish yellow, broadly campanulate, 4–5.5 mm, short stipitate-glandular proximally, medium stipitate-glandular distally; sepals erect, green-tipped, equal, 1.2–2 mm, apex rounded-ovate; petals usually spreading, white, broadly oblanceolate, (clawed), unlobed, 1.8–2.5 mm, margins entire; stamens included 1 mm; (filaments erect or incurved distally, relatively slender, longer than and not concealed by anthers); styles included 1.5 mm, 1 mm, 0.1+ mm diam. |
Capsules | urceolate, 4–6 mm, beaks divergent, not papillose. |
globose or ovoid, 3.5–4 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.7 mm. |
dark brown, fusiform, 0.6 mm. |
Inflorescenses | dense. |
|
2n | = 14. |
|
Heuchera elegans |
Heuchera hallii |
|
Phenology | Flowering May–Jun. | Flowering Jun–Aug. |
Habitat | Rocky sites in yellow pine and red fir forests | Subalpine and alpine regions |
Elevation | 1500-2600 m (4900-8500 ft) | 2200-3000 m (7200-9800 ft) |
Distribution |
CA |
CO
|
Discussion | Heuchera elegans occurs in the mountains of southern California, chiefly in the San Gabriel Range in Los Angeles and San Bernardino counties and vicinity. It resembles H. caespitosa. This group is in need of phylogenetic study. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Heuchera hallii occurs in south-central Colorado. It resembles H. bracteata in shape and size of the flowers and congestion of the inflorescence. It is distinguished by having stamens and styles included; H. bracteata has stamens and styles exserted. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 100. | FNA vol. 8, p. 102. |
Parent taxa | ||
Sibling taxa | ||
Name authority | Abrams: Bull. S. Calif. Acad. Sci. 1: 67. 1902 , | A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 62. 1864 , |
Web links |