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Abrams' alumroot, San Gabriel alum-root

White Mountain alum-root

Habit Herbs subcaulescent; caudex branched. Herbs, acaulescent; caudex branched or unbranched.
Flowering stems

6–15 cm, short stipitate-glandular.

4–60 cm, long stipitate-glandular.

Leaves

petiole glabrous or short stipitate-glandular and scattered medium stipitate-glandular;

blade ovate, deeply 5-lobed, 0.5–2 cm, base truncate or shallowly cordate, lobes rounded, margins dentate, apex obtuse, surfaces short stipitate-glandular abaxially, sparsely long stipitate-glandular adaxially.

petiole long stipitate-glandular;

blade orbiculate, shallowly 5–7-lobed, 4–7 cm, base cordate, lobes rounded to ovate, margins dentate, apex obtuse, surfaces glaucous, long stipitate-glandular along veins abaxially, glabrous adaxially.

Inflorescences

dense.

dense.

Flowers

hypanthium strongly bilaterally symmetric, free 1.5–2 mm on adaxial side, reddish purple, cylindric, 4–5 mm, short stipitate-glandular proximally, medium stipitate-glandular distally;

sepals spreading, green-tipped, unequal, 1.2–1.5 mm, apex obtuse or rounded;

petals spreading, white, spatulate or oblanceolate, rarely linear, unlobed, 1.5–2.5 mm (equaling or longer than sepals), margins entire;

stamens barely included to 1.5 mm exserted;

styles exserted 1.5–2 mm, 2.5–3 mm, 0.1+ mm diam.

hypanthium radially symmetic, free 0.5 mm, green, flat, saucer-shaped, 2–3 mm, short stipitate-glandular;

sepals reflexed, green-tipped, (triangular), equal, 0.5 mm, apex acute;

petals reflexed, white, widely elliptic, (clawed), unlobed, 1 mm, margins entire;

stamens included 0.5–0.8 mm, (incurved over stigmas);

styles included 1–1.5 mm, 0.5 mm, 0.1+ mm diam.

Capsules

ovoid, 3.5–5 mm, beaks divergent, not papillose.

oblong, ca. 6 mm, beaks divergent, not papillose.

Seeds

dark brown, ellipsoid, 0.6 mm.

dark brown, fusiform, 0.7 mm.

Heuchera abramsii

Heuchera wootonii

Phenology Flowering Jul–Aug. Flowering Jun–Sep.
Habitat Rocky soil in red fir forest Rocky slopes
Elevation 2800-3100 m (9200-10200 ft) 2100-3700 m (6900-12100 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
NM
[BONAP county map]
Discussion

Heuchera abramsii occurs in the San Antonio Mountains and the eastern part of the San Gabriel Mountains, San Bernardino and Los Angeles counties. It closely resembles H. brevistaminea, H. caespitosa, H. elegans, and H. pulchella.

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

Heuchera wootonii occurs in the Sacramento and White mountains of south-central New Mexico. It resembles H. parvifolia.

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

Source FNA vol. 8, p. 99. FNA vol. 8, p. 104.
Parent taxa Saxifragaceae > Heuchera Saxifragaceae > Heuchera
Sibling taxa
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. 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. 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
Name authority Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 109. 1905 , Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 113. 1905 ,
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