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urn-flower alum-root

island alumroot, jill-of-the-rocks

Habit Herbs subcaulescent; caudex branched. Herbs caulescent; caudex branched.
Flowering stems

10–40 cm, sparsely medium stipitate-glandular.

9–30 cm, short or long stipitate-glandular, viscid.

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 (7–22 cm), densely long stipitate-glandular;

blade pentagonal to septagonal, deeply 5-lobed, 6.3–17 cm, base deeply cordate, lobes rounded, margins crenate, apex obtuse, surfaces long stipitate-glandular abaxially, glabrous adaxially except long stipitate-glandular near margins, viscid.

Inflorescences

dense.

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 radially symmetric, free 0.3–1.4 mm, white to pink, hemispheric, 2.5–4.2 mm, densely long stipitate-glandular;

sepals somewhat spreading, green- or red-tipped, equal, 0.7–2 mm, apex rounded or truncate, (medium to long stipitate-glandular);

petals spreading, white, oblong-lanceolate, (clawed), unlobed, 2–4 mm, margins entire;

stamens exserted 0.4–2.5 mm;

styles exserted to 2 mm, 1.5–4 mm, 0.1+ mm diam.

Capsules

urceolate, 4–6 mm, beaks divergent, not papillose.

ovoid, 4–8 mm, beaks divergent, not papillose.

Seeds

dark brown, ellipsoid, 0.7 mm.

black, broadly fusiform, 0.4 mm.

Inflorescenses

dense.

2n

= 14.

Heuchera elegans

Heuchera maxima

Phenology Flowering May–Jun. Flowering Mar–May.
Habitat Rocky sites in yellow pine and red fir forests Exposed cliffs
Elevation 1500-2600 m (4900-8500 ft) 0-500 m (0-1600 ft)
Distribution
from FNA
CA
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
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.)

Of conservation concern.

Heuchera maxima is found on the northern Channel Islands (Anacapa, Santa Cruz, Santa Rosa), Santa Barbara County.

Heuchera maxima is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 8, p. 100. FNA vol. 8, p. 93.
Parent taxa Saxifragaceae > Heuchera Saxifragaceae > Heuchera
Sibling taxa
H. abramsii, H. alba, H. americana, H. bracteata, H. brevistaminea, H. caespitosa, H. caroliniana, H. chlorantha, H. cylindrica, H. eastwoodiae, H. glabra, H. glomerulata, H. grossulariifolia, H. hallii, H. hirsutissima, H. longiflora, H. maxima, H. merriamii, H. micrantha, H. novamexicana, H. parishii, H. parviflora, H. parvifolia, H. pilosissima, H. pubescens, H. pulchella, H. richardsonii, H. rubescens, H. sanguinea, H. villosa, H. wootonii
H. abramsii, H. alba, H. americana, H. bracteata, H. brevistaminea, H. caespitosa, H. caroliniana, H. chlorantha, H. cylindrica, H. eastwoodiae, H. elegans, H. glabra, H. glomerulata, H. grossulariifolia, H. hallii, H. hirsutissima, H. longiflora, H. merriamii, H. micrantha, H. novamexicana, H. parishii, H. parviflora, H. parvifolia, H. pilosissima, H. pubescens, H. pulchella, H. richardsonii, H. rubescens, H. sanguinea, H. villosa, H. wootonii
Name authority Abrams: Bull. S. Calif. Acad. Sci. 1: 67. 1902 , Greene: Bull. Calif. Acad. Sci. 2: 149. 1886 ,
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